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/array-industry-pattern/array_ptr_single_elem_init-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:34,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:34,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:34,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:34,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:34,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:34,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:34,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:34,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:34,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:34,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:34,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:34,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:34,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:34,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:34,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:34,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:34,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:34,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:34,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:34,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:34,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:34,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:34,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:34,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:34,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:34,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:34,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:34,947 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 [2019-10-13 19:53:34,964 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:34,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:34,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:34,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:34,966 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:34,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:34,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:34,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:34,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:34,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:34,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:34,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:34,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:34,968 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:34,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:34,968 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:34,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:34,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:34,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:34,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:34,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:34,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:34,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:34,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:34,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:34,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:34,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:34,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:34,971 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 [2019-10-13 19:53:35,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:35,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:35,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:35,281 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:35,282 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:35,283 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_ptr_single_elem_init-2.i [2019-10-13 19:53:35,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564d40/5e44fd9ac67d4e61a8994824525e2a10/FLAG8fa2f6987 [2019-10-13 19:53:35,801 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:35,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_ptr_single_elem_init-2.i [2019-10-13 19:53:35,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564d40/5e44fd9ac67d4e61a8994824525e2a10/FLAG8fa2f6987 [2019-10-13 19:53:36,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c564d40/5e44fd9ac67d4e61a8994824525e2a10 [2019-10-13 19:53:36,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:36,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:36,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:36,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:36,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:36,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4924bc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36, skipping insertion in model container [2019-10-13 19:53:36,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:36,259 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:36,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:36,465 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:36,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:36,515 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:36,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36 WrapperNode [2019-10-13 19:53:36,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:36,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:36,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:36,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:36,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (1/1) ... [2019-10-13 19:53:36,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:36,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:36,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:36,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:36,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (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 [2019-10-13 19:53:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:36,983 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:36,984 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 19:53:36,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:36 BoogieIcfgContainer [2019-10-13 19:53:36,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:36,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:36,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:36,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:36,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:36" (1/3) ... [2019-10-13 19:53:36,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46878a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:36, skipping insertion in model container [2019-10-13 19:53:36,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:36" (2/3) ... [2019-10-13 19:53:36,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46878a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:36, skipping insertion in model container [2019-10-13 19:53:36,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:36" (3/3) ... [2019-10-13 19:53:36,993 INFO L109 eAbstractionObserver]: Analyzing ICFG array_ptr_single_elem_init-2.i [2019-10-13 19:53:37,014 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:37,024 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:37,035 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:37,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:37,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:37,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:37,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:37,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:37,061 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:37,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:37,061 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:37,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-13 19:53:37,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:37,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:37,083 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:37,085 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1656037931, now seen corresponding path program 1 times [2019-10-13 19:53:37,096 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:37,097 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862591953] [2019-10-13 19:53:37,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:37,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862591953] [2019-10-13 19:53:37,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:37,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:37,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10098156] [2019-10-13 19:53:37,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:37,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:37,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:37,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:37,260 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-13 19:53:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:37,286 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2019-10-13 19:53:37,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:37,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-13 19:53:37,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:37,296 INFO L225 Difference]: With dead ends: 46 [2019-10-13 19:53:37,297 INFO L226 Difference]: Without dead ends: 24 [2019-10-13 19:53:37,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:37,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-13 19:53:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-13 19:53:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 19:53:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-10-13 19:53:37,346 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 14 [2019-10-13 19:53:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:37,347 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-10-13 19:53:37,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-10-13 19:53:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:37,349 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:37,349 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:37,350 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:37,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:37,351 INFO L82 PathProgramCache]: Analyzing trace with hash -533813011, now seen corresponding path program 1 times [2019-10-13 19:53:37,351 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:37,352 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140396528] [2019-10-13 19:53:37,352 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:37,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140396528] [2019-10-13 19:53:37,443 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:37,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:37,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493795509] [2019-10-13 19:53:37,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:37,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:37,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:37,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:37,452 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-10-13 19:53:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:37,552 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-10-13 19:53:37,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:37,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 19:53:37,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:37,555 INFO L225 Difference]: With dead ends: 45 [2019-10-13 19:53:37,555 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 19:53:37,556 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 19:53:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2019-10-13 19:53:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 19:53:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-10-13 19:53:37,564 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 14 [2019-10-13 19:53:37,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:37,565 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-10-13 19:53:37,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:37,565 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2019-10-13 19:53:37,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 19:53:37,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:37,567 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:37,567 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:37,568 INFO L82 PathProgramCache]: Analyzing trace with hash -414258795, now seen corresponding path program 1 times [2019-10-13 19:53:37,568 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:37,568 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237176701] [2019-10-13 19:53:37,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:37,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:37,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237176701] [2019-10-13 19:53:37,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767212759] [2019-10-13 19:53:37,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:37,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:37,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:37,798 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:37,828 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [746571304] [2019-10-13 19:53:37,835 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-13 19:53:37,873 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:37,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:37,941 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:37,942 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 24 variables. [2019-10-13 19:53:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:37,947 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:37,984 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:37,984 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:37,987 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-13 19:53:37,987 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:37,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:37,988 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:37,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316457254] [2019-10-13 19:53:37,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:37,990 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:37,990 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:37,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:37,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:37,991 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 2 states. [2019-10-13 19:53:37,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:37,993 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-10-13 19:53:37,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:37,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-13 19:53:37,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:37,994 INFO L225 Difference]: With dead ends: 27 [2019-10-13 19:53:37,995 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:37,995 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:37,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-13 19:53:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:37,997 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:37,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:37,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:38,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:38,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:38,233 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:38,233 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:38,233 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:38,234 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:38,234 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:38,234 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:38,234 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:38,234 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 40) no Hoare annotation was computed. [2019-10-13 19:53:38,235 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 28) no Hoare annotation was computed. [2019-10-13 19:53:38,235 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 29) no Hoare annotation was computed. [2019-10-13 19:53:38,235 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 40) no Hoare annotation was computed. [2019-10-13 19:53:38,235 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: false [2019-10-13 19:53:38,235 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-10-13 19:53:38,235 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 37) no Hoare annotation was computed. [2019-10-13 19:53:38,236 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 38) no Hoare annotation was computed. [2019-10-13 19:53:38,236 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 40) the Hoare annotation is: true [2019-10-13 19:53:38,236 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 38) the Hoare annotation is: false [2019-10-13 19:53:38,236 INFO L443 ceAbstractionStarter]: For program point L32-4(lines 32 38) no Hoare annotation was computed. [2019-10-13 19:53:38,236 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2019-10-13 19:53:38,236 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 18) no Hoare annotation was computed. [2019-10-13 19:53:38,237 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 10 30) no Hoare annotation was computed. [2019-10-13 19:53:38,237 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 30) the Hoare annotation is: false [2019-10-13 19:53:38,238 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 10 30) no Hoare annotation was computed. [2019-10-13 19:53:38,238 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:38,238 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:38,238 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:38,239 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:38,239 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:38,239 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:38,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:38 BoogieIcfgContainer [2019-10-13 19:53:38,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:38,268 INFO L168 Benchmark]: Toolchain (without parser) took 2047.16 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 102.2 MB in the end (delta: 198.0 kB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,269 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.14 ms. Allocated memory is still 145.2 MB. Free memory was 102.2 MB in the beginning and 92.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,273 INFO L168 Benchmark]: Boogie Preprocessor took 120.37 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.1 MB in the beginning and 179.1 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,274 INFO L168 Benchmark]: RCFGBuilder took 348.37 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 164.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,275 INFO L168 Benchmark]: TraceAbstraction took 1278.22 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 102.2 MB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:38,283 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.14 ms. Allocated memory is still 145.2 MB. Free memory was 102.2 MB in the beginning and 92.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.37 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.1 MB in the beginning and 179.1 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.37 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 164.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1278.22 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 102.2 MB in the end (delta: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 10 SDslu, 15 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 2401 SizeOfPredicates, 1 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 112, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9285714285714286, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7619047619047619, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...