java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:21,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:21,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:21,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:21,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:21,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:21,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:21,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:21,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:21,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:21,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:21,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:21,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:21,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:21,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:21,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:21,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:21,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:21,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:21,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:21,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:21,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:21,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:21,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:21,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:01:21,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:21,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:21,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:21,423 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 [2019-10-15 01:01:21,436 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:21,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:21,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:21,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:21,440 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:21,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:21,441 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:21,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:21,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:21,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:21,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:21,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:21,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:21,442 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:21,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:21,442 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:21,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:21,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:21,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:21,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:21,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:21,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:21,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:21,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:21,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:21,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:21,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:21,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:21,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:01:21,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:21,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:21,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:21,729 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:21,729 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:21,730 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2019-10-15 01:01:21,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db212fda2/9f8f0fe58edd4704a8e56112ad28d0b3/FLAG2950da537 [2019-10-15 01:01:22,281 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:22,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2019-10-15 01:01:22,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db212fda2/9f8f0fe58edd4704a8e56112ad28d0b3/FLAG2950da537 [2019-10-15 01:01:22,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db212fda2/9f8f0fe58edd4704a8e56112ad28d0b3 [2019-10-15 01:01:22,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:22,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:22,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:22,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:22,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:22,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:22,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137de84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22, skipping insertion in model container [2019-10-15 01:01:22,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:22,656 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:22,677 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:22,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:22,861 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:22,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:22,901 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:22,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22 WrapperNode [2019-10-15 01:01:22,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:22,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:22,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:22,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:22,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:22,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (1/1) ... [2019-10-15 01:01:23,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:23,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:23,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:23,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:23,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (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 [2019-10-15 01:01:23,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:23,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:23,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:01:23,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-15 01:01:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:01:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:23,271 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:23,271 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:01:23,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:23 BoogieIcfgContainer [2019-10-15 01:01:23,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:23,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:23,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:23,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:23,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:22" (1/3) ... [2019-10-15 01:01:23,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6e18e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:23, skipping insertion in model container [2019-10-15 01:01:23,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:22" (2/3) ... [2019-10-15 01:01:23,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6e18e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:23, skipping insertion in model container [2019-10-15 01:01:23,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:23" (3/3) ... [2019-10-15 01:01:23,281 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-1.i [2019-10-15 01:01:23,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:23,301 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:23,315 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:23,344 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:23,346 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:23,347 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:23,347 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:23,347 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:23,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:23,348 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:23,348 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-15 01:01:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:01:23,396 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:23,397 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:23,402 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:23,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:23,409 INFO L82 PathProgramCache]: Analyzing trace with hash -715594688, now seen corresponding path program 1 times [2019-10-15 01:01:23,420 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:23,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001235743] [2019-10-15 01:01:23,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:23,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:23,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:23,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001235743] [2019-10-15 01:01:23,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:23,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:01:23,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699309513] [2019-10-15 01:01:23,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:01:23,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:23,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:01:23,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:01:23,678 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2019-10-15 01:01:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:23,743 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-15 01:01:23,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:01:23,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-15 01:01:23,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:23,757 INFO L225 Difference]: With dead ends: 25 [2019-10-15 01:01:23,758 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:23,764 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:01:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:23,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-15 01:01:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:23,798 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:23,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:01:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:23,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:23,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:23,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:23,844 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:23,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:23,845 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:23,845 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:23,845 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:23,848 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:23,848 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (= 4 |main_#t~mem0|) [2019-10-15 01:01:23,848 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-15 01:01:23,848 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 27 33) the Hoare annotation is: true [2019-10-15 01:01:23,849 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 27 33) no Hoare annotation was computed. [2019-10-15 01:01:23,849 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 27 33) no Hoare annotation was computed. [2019-10-15 01:01:23,849 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-10-15 01:01:23,849 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-10-15 01:01:23,850 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-10-15 01:01:23,850 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-15 01:01:23,850 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-15 01:01:23,850 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-10-15 01:01:23,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:23 BoogieIcfgContainer [2019-10-15 01:01:23,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:23,866 INFO L168 Benchmark]: Toolchain (without parser) took 1220.37 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 104.2 MB in the beginning and 141.6 MB in the end (delta: -37.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,868 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.63 ms. Allocated memory is still 138.9 MB. Free memory was 104.0 MB in the beginning and 94.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,874 INFO L168 Benchmark]: Boogie Preprocessor took 114.78 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 180.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,876 INFO L168 Benchmark]: RCFGBuilder took 255.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 168.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,878 INFO L168 Benchmark]: TraceAbstraction took 583.86 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 141.6 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:23,892 INFO L335 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 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.63 ms. Allocated memory is still 138.9 MB. Free memory was 104.0 MB in the beginning and 94.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.78 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 180.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.28 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 168.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 583.86 ms. Allocated memory is still 202.4 MB. Free memory was 168.1 MB in the beginning and 141.6 MB in the end (delta: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 31 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...