/usr/bin/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-examples/standard_init7_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:53,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:53,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:53,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:53,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:53,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:53,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:53,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:53,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:53,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:53,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:53,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:53,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:53,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:53,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:53,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:53,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:53,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:53,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:53,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:53,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:53,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:53,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:53,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:53,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:26:54,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:54,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:54,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:54,010 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 [2019-11-06 22:26:54,043 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:54,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:54,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:54,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:54,046 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:54,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:54,046 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:54,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:54,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:54,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:54,049 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:54,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:54,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:54,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:54,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:54,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:54,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:54,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:54,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:54,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:54,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:54,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:54,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:54,057 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 [2019-11-06 22:26:54,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:54,381 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:54,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:54,385 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:54,386 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:54,387 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init7_ground-1.i [2019-11-06 22:26:54,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6c27ae5/c9e85fa287294a3eaa884742a3aeceb5/FLAG74cae3bdb [2019-11-06 22:26:54,920 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:54,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init7_ground-1.i [2019-11-06 22:26:54,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6c27ae5/c9e85fa287294a3eaa884742a3aeceb5/FLAG74cae3bdb [2019-11-06 22:26:55,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc6c27ae5/c9e85fa287294a3eaa884742a3aeceb5 [2019-11-06 22:26:55,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:55,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:55,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:55,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:55,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:55,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bcaf3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55, skipping insertion in model container [2019-11-06 22:26:55,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,322 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:55,342 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:55,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:55,540 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:55,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:55,654 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:55,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55 WrapperNode [2019-11-06 22:26:55,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:55,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:55,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:55,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:55,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (1/1) ... [2019-11-06 22:26:55,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:55,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:55,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:55,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:55,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (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 [2019-11-06 22:26:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:56,073 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:56,073 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-06 22:26:56,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:56 BoogieIcfgContainer [2019-11-06 22:26:56,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:56,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:56,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:56,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:56,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:55" (1/3) ... [2019-11-06 22:26:56,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a66a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:56, skipping insertion in model container [2019-11-06 22:26:56,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:55" (2/3) ... [2019-11-06 22:26:56,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405a66a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:56, skipping insertion in model container [2019-11-06 22:26:56,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:56" (3/3) ... [2019-11-06 22:26:56,080 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init7_ground-1.i [2019-11-06 22:26:56,088 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:56,094 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:56,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:56,128 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:56,128 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:56,128 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:56,128 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:56,128 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:56,128 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:56,129 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:56,129 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:56,143 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-11-06 22:26:56,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-06 22:26:56,148 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:56,149 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:56,150 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:56,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:56,155 INFO L82 PathProgramCache]: Analyzing trace with hash -190793262, now seen corresponding path program 1 times [2019-11-06 22:26:56,162 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:56,162 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685586325] [2019-11-06 22:26:56,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:56,279 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685586325] [2019-11-06 22:26:56,279 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:56,280 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:56,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141180729] [2019-11-06 22:26:56,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:56,287 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:56,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:56,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:56,304 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-11-06 22:26:56,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:56,331 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2019-11-06 22:26:56,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:56,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2019-11-06 22:26:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:56,341 INFO L225 Difference]: With dead ends: 63 [2019-11-06 22:26:56,341 INFO L226 Difference]: Without dead ends: 30 [2019-11-06 22:26:56,345 INFO L630 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 [2019-11-06 22:26:56,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-06 22:26:56,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-06 22:26:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-06 22:26:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-06 22:26:56,387 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 25 [2019-11-06 22:26:56,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:56,388 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-06 22:26:56,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-06 22:26:56,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-06 22:26:56,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:56,390 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:56,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1826977482, now seen corresponding path program 1 times [2019-11-06 22:26:56,391 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:56,392 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361813444] [2019-11-06 22:26:56,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:56,448 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361813444] [2019-11-06 22:26:56,448 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:56,448 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:56,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581549028] [2019-11-06 22:26:56,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:56,451 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:56,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:56,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:56,452 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 3 states. [2019-11-06 22:26:56,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:56,555 INFO L93 Difference]: Finished difference Result 60 states and 80 transitions. [2019-11-06 22:26:56,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:56,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-06 22:26:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:56,557 INFO L225 Difference]: With dead ends: 60 [2019-11-06 22:26:56,557 INFO L226 Difference]: Without dead ends: 37 [2019-11-06 22:26:56,558 INFO L630 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 [2019-11-06 22:26:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-06 22:26:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-06 22:26:56,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-06 22:26:56,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2019-11-06 22:26:56,568 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2019-11-06 22:26:56,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:56,568 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2019-11-06 22:26:56,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:56,568 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2019-11-06 22:26:56,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-06 22:26:56,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:56,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:56,570 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:56,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1635964633, now seen corresponding path program 1 times [2019-11-06 22:26:56,571 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:56,571 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16922973] [2019-11-06 22:26:56,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 22:26:56,667 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16922973] [2019-11-06 22:26:56,668 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868115154] [2019-11-06 22:26:56,668 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 [2019-11-06 22:26:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:56,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:56,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 22:26:56,798 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-06 22:26:56,836 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1167349603] [2019-11-06 22:26:56,842 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 33 [2019-11-06 22:26:56,879 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:56,880 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:56,942 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:56,943 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 17 variables. [2019-11-06 22:26:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:56,947 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:56,988 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:56,988 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:56,991 INFO L553 sIntCurrentIteration]: We unified 31 AI predicates to 31 [2019-11-06 22:26:56,991 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:56,992 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:56,992 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:56,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125985759] [2019-11-06 22:26:56,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:56,994 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:56,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:56,995 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 2 states. [2019-11-06 22:26:56,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:56,998 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2019-11-06 22:26:56,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:56,998 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-11-06 22:26:56,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:56,999 INFO L225 Difference]: With dead ends: 37 [2019-11-06 22:26:56,999 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:57,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:57,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-06 22:26:57,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:57,003 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:57,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:57,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:57,209 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:57,271 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,271 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,271 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,271 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,272 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,272 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:57,272 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:57,272 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: false [2019-11-06 22:26:57,272 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2019-11-06 22:26:57,273 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 45) no Hoare annotation was computed. [2019-11-06 22:26:57,273 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false [2019-11-06 22:26:57,273 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-11-06 22:26:57,273 INFO L439 ceAbstractionStarter]: At program point L36-2(lines 36 39) the Hoare annotation is: false [2019-11-06 22:26:57,273 INFO L443 ceAbstractionStarter]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2019-11-06 22:26:57,274 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 19) the Hoare annotation is: false [2019-11-06 22:26:57,274 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2019-11-06 22:26:57,274 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2019-11-06 22:26:57,274 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 43) the Hoare annotation is: false [2019-11-06 22:26:57,274 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2019-11-06 22:26:57,275 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: false [2019-11-06 22:26:57,275 INFO L443 ceAbstractionStarter]: For program point L21-3(lines 21 24) no Hoare annotation was computed. [2019-11-06 22:26:57,275 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 45) no Hoare annotation was computed. [2019-11-06 22:26:57,275 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: false [2019-11-06 22:26:57,275 INFO L443 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2019-11-06 22:26:57,275 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 45) the Hoare annotation is: true [2019-11-06 22:26:57,276 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: false [2019-11-06 22:26:57,276 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2019-11-06 22:26:57,276 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false [2019-11-06 22:26:57,276 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-11-06 22:26:57,276 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,277 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,277 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:57,277 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,277 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,277 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:57,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:57 BoogieIcfgContainer [2019-11-06 22:26:57,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:57,293 INFO L168 Benchmark]: Toolchain (without parser) took 1985.42 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.3 MB in the beginning and 94.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,294 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.77 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 181.7 MB in the end (delta: -79.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,296 INFO L168 Benchmark]: Boogie Preprocessor took 37.03 ms. Allocated memory is still 202.4 MB. Free memory was 181.7 MB in the beginning and 179.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,297 INFO L168 Benchmark]: RCFGBuilder took 381.74 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 162.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,298 INFO L168 Benchmark]: TraceAbstraction took 1213.89 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 94.7 MB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:57,303 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.77 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.1 MB in the beginning and 181.7 MB in the end (delta: -79.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.03 ms. Allocated memory is still 202.4 MB. Free memory was 181.7 MB in the beginning and 179.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.74 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 162.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1213.89 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 94.7 MB in the end (delta: 68.1 MB). Peak memory consumption was 68.1 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: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 21 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 16 PreInvPairs, 16 NumberOfFragments, 14 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 4455 SizeOfPredicates, 1 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 18/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 105, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9758064516129032, AVG_VARS_REMOVED_DURING_WEAKENING: 0.4838709677419355, AVG_WEAKENED_CONJUNCTS: 0.1935483870967742, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...