/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_union_cast.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:05:40,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:05:40,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:05:40,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 01:05:40,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:05:40,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:05:40,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:05:40,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:05:40,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:05:40,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:05:40,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:05:40,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:05:40,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:05:40,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:05:40,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:05:40,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:05:40,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:05:40,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:05:40,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:05:40,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:05:40,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:05:40,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:05:40,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:05:40,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:05:40,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:05:40,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:05:40,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:05:40,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:05:40,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:05:40,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:05:40,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:05:40,653 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:05:40,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:05:40,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:05:40,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:05:40,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:05:40,654 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:05:40,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:05:40,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:05:40,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:05:40,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:05:40,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:05:40,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:05:40,656 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:05:41,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:05:41,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:05:41,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:05:41,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:05:41,167 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:05:41,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union_cast.i [2020-10-24 01:05:41,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475fe0057/e037559bc5f844d594ce401151bd5136/FLAGce5f2d381 [2020-10-24 01:05:41,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:05:41,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union_cast.i [2020-10-24 01:05:41,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475fe0057/e037559bc5f844d594ce401151bd5136/FLAGce5f2d381 [2020-10-24 01:05:42,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475fe0057/e037559bc5f844d594ce401151bd5136 [2020-10-24 01:05:42,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:05:42,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:05:42,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:05:42,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:05:42,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:05:42,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc90338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42, skipping insertion in model container [2020-10-24 01:05:42,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:05:42,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:05:42,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:05:42,498 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:05:42,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:05:42,538 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:05:42,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42 WrapperNode [2020-10-24 01:05:42,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:05:42,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:05:42,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:05:42,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:05:42,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (1/1) ... [2020-10-24 01:05:42,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:05:42,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:05:42,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:05:42,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:05:42,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (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 [2020-10-24 01:05:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:05:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:05:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:05:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-24 01:05:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:05:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:05:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:05:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:05:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:05:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-24 01:05:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:05:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 01:05:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:05:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:05:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:05:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:05:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:05:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:05:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 01:05:43,078 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:05:43,078 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 01:05:43,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:43 BoogieIcfgContainer [2020-10-24 01:05:43,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:05:43,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:05:43,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:05:43,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:05:43,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:05:42" (1/3) ... [2020-10-24 01:05:43,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549aa5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:43, skipping insertion in model container [2020-10-24 01:05:43,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:05:42" (2/3) ... [2020-10-24 01:05:43,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@549aa5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:05:43, skipping insertion in model container [2020-10-24 01:05:43,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:05:43" (3/3) ... [2020-10-24 01:05:43,124 INFO L111 eAbstractionObserver]: Analyzing ICFG test_union_cast.i [2020-10-24 01:05:43,166 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:05:43,175 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:05:43,192 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:05:43,221 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:05:43,222 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:05:43,222 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:05:43,222 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:05:43,222 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:05:43,222 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:05:43,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:05:43,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:05:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-24 01:05:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-24 01:05:43,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:05:43,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:05:43,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:05:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:05:43,257 INFO L82 PathProgramCache]: Analyzing trace with hash 135867788, now seen corresponding path program 1 times [2020-10-24 01:05:43,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:05:43,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6163559] [2020-10-24 01:05:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:05:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:43,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:05:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:05:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:05:43,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6163559] [2020-10-24 01:05:43,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:05:43,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 01:05:43,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298374731] [2020-10-24 01:05:43,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 01:05:43,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:05:43,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 01:05:43,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-24 01:05:43,792 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2020-10-24 01:05:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:05:43,957 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2020-10-24 01:05:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 01:05:43,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-24 01:05:43,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:05:43,967 INFO L225 Difference]: With dead ends: 42 [2020-10-24 01:05:43,968 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:05:43,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 01:05:43,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:05:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:05:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:05:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:05:44,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-24 01:05:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:05:44,003 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:05:44,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 01:05:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:05:44,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:05:44,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:05:44,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:05:44,260 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,260 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,260 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,260 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,261 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,262 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-24 01:05:44,262 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,262 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-24 01:05:44,262 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,262 INFO L277 CegarLoopResult]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,263 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 01:05:44,264 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2020-10-24 01:05:44,264 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (= |main_#t~mem7| 10) (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10)) [2020-10-24 01:05:44,264 INFO L270 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2020-10-24 01:05:44,264 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 21 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 01:05:44,265 INFO L277 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-10-24 01:05:44,265 INFO L270 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: false [2020-10-24 01:05:44,265 INFO L277 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-10-24 01:05:44,265 INFO L270 CegarLoopResult]: At program point L31-3(line 31) the Hoare annotation is: (and (= |main_#t~mem7| 10) (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10)) [2020-10-24 01:05:44,265 INFO L270 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2020-10-24 01:05:44,266 INFO L270 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2020-10-24 01:05:44,266 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 21 34) the Hoare annotation is: true [2020-10-24 01:05:44,266 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 21 34) the Hoare annotation is: true [2020-10-24 01:05:44,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:05:44 BoogieIcfgContainer [2020-10-24 01:05:44,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:05:44,281 INFO L168 Benchmark]: Toolchain (without parser) took 1994.80 ms. Allocated memory is still 164.6 MB. Free memory was 141.7 MB in the beginning and 139.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 36.9 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:44,282 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.6 MB in the end (delta: 66.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:05:44,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.22 ms. Allocated memory is still 164.6 MB. Free memory was 141.1 MB in the beginning and 131.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:44,284 INFO L168 Benchmark]: Boogie Preprocessor took 37.44 ms. Allocated memory is still 164.6 MB. Free memory was 131.5 MB in the beginning and 130.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:44,285 INFO L168 Benchmark]: RCFGBuilder took 503.37 ms. Allocated memory is still 164.6 MB. Free memory was 130.1 MB in the beginning and 116.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:44,286 INFO L168 Benchmark]: TraceAbstraction took 1168.86 ms. Allocated memory is still 164.6 MB. Free memory was 148.6 MB in the beginning and 139.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-24 01:05:44,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.6 MB in the end (delta: 66.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 246.22 ms. Allocated memory is still 164.6 MB. Free memory was 141.1 MB in the beginning and 131.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.44 ms. Allocated memory is still 164.6 MB. Free memory was 131.5 MB in the beginning and 130.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 503.37 ms. Allocated memory is still 164.6 MB. Free memory was 130.1 MB in the beginning and 116.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1168.86 ms. Allocated memory is still 164.6 MB. Free memory was 148.6 MB in the beginning and 139.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 43.0 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 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 37 SDs, 0 SdLazy, 29 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 42 NumberOfFragments, 114 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 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...