/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:29:01,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:29:01,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:29:01,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:29:01,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:29:01,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:29:01,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:29:01,287 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 22:29:01,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:29:01,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:29:01,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:29:01,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:29:01,331 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:29:01,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:29:01,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:29:01,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:29:01,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:29:01,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:29:01,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:29:01,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:29:01,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:29:01,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:29:01,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:29:01,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:29:01,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:29:01,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:29:01,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:29:01,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:29:01,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:29:01,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:29:01,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:29:01,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:29:01,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:29:01,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:29:01,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:29:01,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:29:01,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:29:01,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:29:01,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:29:01,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:29:01,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:29:01,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:29:01,718 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:29:01,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2020-11-06 22:29:01,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f2eda22/f9ec44176f71491d8e036899a28ceecd/FLAGd519794ee [2020-11-06 22:29:02,450 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:29:02,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2020-11-06 22:29:02,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f2eda22/f9ec44176f71491d8e036899a28ceecd/FLAGd519794ee [2020-11-06 22:29:02,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25f2eda22/f9ec44176f71491d8e036899a28ceecd [2020-11-06 22:29:02,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:29:02,827 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:29:02,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:29:02,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:29:02,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:29:02,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:02" (1/1) ... [2020-11-06 22:29:02,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64450ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:02, skipping insertion in model container [2020-11-06 22:29:02,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:29:02" (1/1) ... [2020-11-06 22:29:02,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:29:02,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:29:03,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:29:03,037 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:29:03,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:29:03,071 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:29:03,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03 WrapperNode [2020-11-06 22:29:03,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:29:03,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:29:03,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:29:03,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:29:03,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (1/1) ... [2020-11-06 22:29:03,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:29:03,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:29:03,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:29:03,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:29:03,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (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 [2020-11-06 22:29:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:29:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:29:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:29:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-11-06 22:29:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:29:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:29:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:29:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:29:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:29:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 22:29:03,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:29:03,579 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 22:29:03,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:03 BoogieIcfgContainer [2020-11-06 22:29:03,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:29:03,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:29:03,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:29:03,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:29:03,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:29:02" (1/3) ... [2020-11-06 22:29:03,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a6471e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:03, skipping insertion in model container [2020-11-06 22:29:03,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:29:03" (2/3) ... [2020-11-06 22:29:03,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a6471e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:29:03, skipping insertion in model container [2020-11-06 22:29:03,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:29:03" (3/3) ... [2020-11-06 22:29:03,589 INFO L111 eAbstractionObserver]: Analyzing ICFG test19.c [2020-11-06 22:29:03,605 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:29:03,609 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:29:03,623 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:29:03,654 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:29:03,654 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:29:03,654 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:29:03,654 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:29:03,654 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:29:03,655 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:29:03,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:29:03,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:29:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-06 22:29:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-06 22:29:03,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:29:03,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:29:03,681 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:29:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:29:03,689 INFO L82 PathProgramCache]: Analyzing trace with hash 482735509, now seen corresponding path program 1 times [2020-11-06 22:29:03,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:29:03,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518742220] [2020-11-06 22:29:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:29:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:29:04,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:29:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:29:04,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-06 22:29:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:29:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:29:04,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518742220] [2020-11-06 22:29:04,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:29:04,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-06 22:29:04,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594354931] [2020-11-06 22:29:04,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:29:04,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:29:04,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:29:04,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:29:04,173 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 8 states. [2020-11-06 22:29:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:29:04,431 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2020-11-06 22:29:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:29:04,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-11-06 22:29:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:29:04,440 INFO L225 Difference]: With dead ends: 26 [2020-11-06 22:29:04,441 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:29:04,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:29:04,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:29:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:29:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:29:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:29:04,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-06 22:29:04,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:29:04,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:29:04,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:29:04,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:29:04,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:29:04,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:29:04,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:29:04,674 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-11-06 22:29:04,674 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-06 22:29:04,674 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-11-06 22:29:04,675 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-06 22:29:04,675 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:29:04,675 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:29:04,675 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:29:04,676 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:29:04,676 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 22:29:04,676 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:29:04,676 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:29:04,676 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|))) (and (= (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= .cse0 |main_~#a~0.base|) (= .cse1 |main_~#b~0.base|) (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.offset|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (not (= .cse1 .cse0)))) [2020-11-06 22:29:04,677 INFO L266 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-06 22:29:04,677 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-11-06 22:29:04,677 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 13 26) no Hoare annotation was computed. [2020-11-06 22:29:04,677 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2020-11-06 22:29:04,677 INFO L266 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-06 22:29:04,678 INFO L262 CegarLoopResult]: At program point L19(lines 13 26) the Hoare annotation is: false [2020-11-06 22:29:04,678 INFO L266 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-06 22:29:04,678 INFO L266 CegarLoopResult]: For program point assignEXIT(lines 7 11) no Hoare annotation was computed. [2020-11-06 22:29:04,678 INFO L262 CegarLoopResult]: At program point assignENTRY(lines 7 11) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-11-06 22:29:04,678 INFO L266 CegarLoopResult]: For program point assignFINAL(lines 7 11) no Hoare annotation was computed. [2020-11-06 22:29:04,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:29:04 BoogieIcfgContainer [2020-11-06 22:29:04,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:29:04,691 INFO L168 Benchmark]: Toolchain (without parser) took 1869.11 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 114.9 MB in the beginning and 156.2 MB in the end (delta: -41.3 MB). Peak memory consumption was 66.0 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:04,692 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 156.2 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:29:04,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.67 ms. Allocated memory is still 156.2 MB. Free memory was 114.4 MB in the beginning and 132.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:04,694 INFO L168 Benchmark]: Boogie Preprocessor took 37.75 ms. Allocated memory is still 156.2 MB. Free memory was 132.6 MB in the beginning and 131.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:04,695 INFO L168 Benchmark]: RCFGBuilder took 469.16 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 125.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:04,696 INFO L168 Benchmark]: TraceAbstraction took 1106.39 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 125.3 MB in the beginning and 156.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:29:04,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 156.2 MB. Free memory is still 131.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 241.67 ms. Allocated memory is still 156.2 MB. Free memory was 114.4 MB in the beginning and 132.6 MB in the end (delta: -18.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.75 ms. Allocated memory is still 156.2 MB. Free memory was 132.6 MB in the beginning and 131.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 469.16 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 125.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1106.39 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 125.3 MB in the beginning and 156.2 MB in the end (delta: -30.8 MB). Peak memory consumption was 76.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 26 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 111 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 2340 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...