/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/just_assert.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:05:31,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:05:31,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:05:31,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:05:31,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:05:31,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:05:31,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:05:31,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:05:31,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:05:31,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:05:31,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:05:31,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:05:31,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:05:31,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:05:31,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:05:31,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:05:31,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:05:31,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:05:31,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:05:31,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:05:31,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:05:31,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:05:31,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:05:31,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:05:31,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:05:31,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:05:31,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:05:31,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:05:31,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:05:31,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:05:31,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:05:31,639 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:05:31,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:05:31,640 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:05:31,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:05:31,641 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:05:31,641 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:05:31,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:05:31,642 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:05:31,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:05:31,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:05:31,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:05:31,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:05:31,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:05:32,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:05:32,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:05:32,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:05:32,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:05:32,130 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:05:32,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/just_assert.i [2021-02-23 18:05:32,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3783d8892/57c2973c836c401e8ef30e0ca5114f4e/FLAG26d51fd80 [2021-02-23 18:05:32,951 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:05:32,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/just_assert.i [2021-02-23 18:05:32,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3783d8892/57c2973c836c401e8ef30e0ca5114f4e/FLAG26d51fd80 [2021-02-23 18:05:33,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3783d8892/57c2973c836c401e8ef30e0ca5114f4e [2021-02-23 18:05:33,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:05:33,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:05:33,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:33,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:05:33,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:05:33,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5c7613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:05:33,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:05:33,542 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/just_assert.i[300,313] [2021-02-23 18:05:33,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:33,563 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:05:33,579 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/just_assert.i[300,313] [2021-02-23 18:05:33,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:05:33,597 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:05:33,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33 WrapperNode [2021-02-23 18:05:33,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:05:33,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:05:33,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:05:33,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:05:33,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (1/1) ... [2021-02-23 18:05:33,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:05:33,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:05:33,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:05:33,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:05:33,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (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 [2021-02-23 18:05:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:05:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:05:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:05:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:05:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:05:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:05:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:05:33,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:05:33,972 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 18:05:33,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:33 BoogieIcfgContainer [2021-02-23 18:05:33,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:05:33,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:05:33,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:05:33,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:05:33,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:05:33" (1/3) ... [2021-02-23 18:05:33,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adaf5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:05:33" (2/3) ... [2021-02-23 18:05:33,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adaf5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:05:33, skipping insertion in model container [2021-02-23 18:05:33,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:05:33" (3/3) ... [2021-02-23 18:05:33,987 INFO L111 eAbstractionObserver]: Analyzing ICFG just_assert.i [2021-02-23 18:05:33,996 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:05:34,003 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:05:34,114 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:05:34,218 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:05:34,218 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:05:34,219 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:05:34,219 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:05:34,219 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:05:34,219 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:05:34,220 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:05:34,220 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:05:34,248 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-02-23 18:05:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-23 18:05:34,268 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:05:34,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:05:34,270 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:05:34,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:05:34,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1600702992, now seen corresponding path program 1 times [2021-02-23 18:05:34,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:05:34,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61013108] [2021-02-23 18:05:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:05:34,439 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:05:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:05:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:05:34,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:05:34,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:05:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:05:34,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61013108] [2021-02-23 18:05:34,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:05:34,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:05:34,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20014572] [2021-02-23 18:05:34,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:05:34,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:05:34,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:05:34,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:05:34,740 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2021-02-23 18:05:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:05:34,851 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2021-02-23 18:05:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:05:34,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-02-23 18:05:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:05:34,875 INFO L225 Difference]: With dead ends: 26 [2021-02-23 18:05:34,876 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:05:34,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:05:34,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:05:34,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:05:34,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:05:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:05:34,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-02-23 18:05:34,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:05:34,928 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:05:34,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:05:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:05:34,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:05:34,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:05:34,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:05:35,108 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,108 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,109 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:05:35,109 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,109 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,109 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,110 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,110 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,110 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,111 INFO L185 CegarLoopUtils]: 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|)) [2021-02-23 18:05:35,111 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,111 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:05:35,111 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,111 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,112 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,112 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,112 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:05:35,112 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: false [2021-02-23 18:05:35,113 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 7 13) the Hoare annotation is: true [2021-02-23 18:05:35,113 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 7 13) the Hoare annotation is: true [2021-02-23 18:05:35,113 INFO L185 CegarLoopUtils]: At program point L10(line 10) the Hoare annotation is: false [2021-02-23 18:05:35,113 INFO L185 CegarLoopUtils]: At program point L10-1(line 10) the Hoare annotation is: false [2021-02-23 18:05:35,114 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 7 13) the Hoare annotation is: true [2021-02-23 18:05:35,114 INFO L192 CegarLoopUtils]: At program point L9-1(lines 9 11) the Hoare annotation is: true [2021-02-23 18:05:35,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:05:35 BoogieIcfgContainer [2021-02-23 18:05:35,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:05:35,141 INFO L168 Benchmark]: Toolchain (without parser) took 1823.64 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 97.0 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,141 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:05:35,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,149 INFO L168 Benchmark]: Boogie Preprocessor took 31.13 ms. Allocated memory is still 151.0 MB. Free memory was 117.8 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,150 INFO L168 Benchmark]: RCFGBuilder took 344.31 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 104.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,153 INFO L168 Benchmark]: TraceAbstraction took 1156.54 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 97.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2021-02-23 18:05:35,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.13 ms. Allocated memory is still 151.0 MB. Free memory was 117.8 MB in the beginning and 116.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 344.31 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 104.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1156.54 ms. Allocated memory is still 151.0 MB. Free memory was 104.5 MB in the beginning and 97.0 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 - ProcedureContractResult [Line: 7]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 3 SDslu, 4 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 21 LocationsWithAnnotation, 21 PreInvPairs, 26 NumberOfFragments, 51 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 120 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...