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_init8_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:22,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:22,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:22,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:22,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:22,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:22,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:22,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:22,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:22,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:22,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:22,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:22,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:22,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:22,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:22,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:22,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:22,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:22,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:22,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:22,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:22,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:22,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:22,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:22,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:22,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:22,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:22,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:22,150 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 19:53:22,179 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:22,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:22,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:22,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:22,181 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:22,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:22,182 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:22,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:22,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:22,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:22,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:22,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:22,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:22,184 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:22,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:22,184 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:22,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:22,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:22,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:22,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:22,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:22,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:22,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:22,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:22,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:22,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:22,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:22,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:22,187 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 19:53:22,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:22,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:22,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:22,476 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:22,476 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:22,477 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init8_ground-1.i [2019-10-13 19:53:22,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53fa762c/fbfba15787c743a9aab8c49a638a2f21/FLAG6ca6579d2 [2019-10-13 19:53:22,954 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:22,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init8_ground-1.i [2019-10-13 19:53:22,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53fa762c/fbfba15787c743a9aab8c49a638a2f21/FLAG6ca6579d2 [2019-10-13 19:53:23,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a53fa762c/fbfba15787c743a9aab8c49a638a2f21 [2019-10-13 19:53:23,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:23,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:23,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:23,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:23,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:23,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ea241b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23, skipping insertion in model container [2019-10-13 19:53:23,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,385 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:23,406 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:23,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:23,566 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:23,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:23,686 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:23,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23 WrapperNode [2019-10-13 19:53:23,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:23,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:23,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:23,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:23,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (1/1) ... [2019-10-13 19:53:23,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:23,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:23,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:23,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:23,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (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 19:53:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:24,113 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:24,113 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-13 19:53:24,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:24 BoogieIcfgContainer [2019-10-13 19:53:24,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:24,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:24,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:24,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:24,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:23" (1/3) ... [2019-10-13 19:53:24,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e44847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:24, skipping insertion in model container [2019-10-13 19:53:24,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:23" (2/3) ... [2019-10-13 19:53:24,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e44847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:24, skipping insertion in model container [2019-10-13 19:53:24,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:24" (3/3) ... [2019-10-13 19:53:24,126 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init8_ground-1.i [2019-10-13 19:53:24,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:24,143 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:24,155 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:24,176 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:24,177 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:24,177 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:24,177 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:24,177 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:24,177 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:24,177 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:24,177 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:24,193 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-10-13 19:53:24,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 19:53:24,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:24,200 INFO L380 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] [2019-10-13 19:53:24,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1916738342, now seen corresponding path program 1 times [2019-10-13 19:53:24,213 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:24,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764690320] [2019-10-13 19:53:24,214 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,214 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:24,336 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 19:53:24,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764690320] [2019-10-13 19:53:24,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:24,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:24,338 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898492286] [2019-10-13 19:53:24,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:24,344 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:24,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:24,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:24,357 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-10-13 19:53:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:24,379 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2019-10-13 19:53:24,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:24,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-10-13 19:53:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:24,389 INFO L225 Difference]: With dead ends: 67 [2019-10-13 19:53:24,389 INFO L226 Difference]: Without dead ends: 32 [2019-10-13 19:53:24,392 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 19:53:24,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-13 19:53:24,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-10-13 19:53:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 19:53:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-10-13 19:53:24,435 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 27 [2019-10-13 19:53:24,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:24,435 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-10-13 19:53:24,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-10-13 19:53:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 19:53:24,437 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:24,437 INFO L380 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] [2019-10-13 19:53:24,438 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:24,438 INFO L82 PathProgramCache]: Analyzing trace with hash -330794466, now seen corresponding path program 1 times [2019-10-13 19:53:24,439 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:24,439 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369520512] [2019-10-13 19:53:24,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:24,515 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 19:53:24,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369520512] [2019-10-13 19:53:24,516 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:24,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:24,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104109264] [2019-10-13 19:53:24,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:24,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:24,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:24,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:24,519 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 3 states. [2019-10-13 19:53:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:24,669 INFO L93 Difference]: Finished difference Result 65 states and 88 transitions. [2019-10-13 19:53:24,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:24,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-13 19:53:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:24,672 INFO L225 Difference]: With dead ends: 65 [2019-10-13 19:53:24,672 INFO L226 Difference]: Without dead ends: 40 [2019-10-13 19:53:24,674 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 19:53:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-13 19:53:24,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-13 19:53:24,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 19:53:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-10-13 19:53:24,692 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2019-10-13 19:53:24,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:24,693 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-10-13 19:53:24,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:24,693 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-10-13 19:53:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-13 19:53:24,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:24,697 INFO L380 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, 1, 1, 1] [2019-10-13 19:53:24,698 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:24,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:24,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1167956326, now seen corresponding path program 1 times [2019-10-13 19:53:24,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:24,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563881888] [2019-10-13 19:53:24,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:24,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 19:53:24,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563881888] [2019-10-13 19:53:24,841 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664404549] [2019-10-13 19:53:24,841 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 19:53:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:24,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:24,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 19:53:24,939 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-13 19:53:24,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [983364408] [2019-10-13 19:53:24,979 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 36 [2019-10-13 19:53:25,022 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:25,023 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:25,089 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:25,090 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. [2019-10-13 19:53:25,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:25,094 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:25,133 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:25,133 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:25,136 INFO L553 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-10-13 19:53:25,136 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:25,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:25,137 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:25,137 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056181377] [2019-10-13 19:53:25,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:25,139 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:25,139 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:25,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:25,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:25,140 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 2 states. [2019-10-13 19:53:25,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:25,143 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2019-10-13 19:53:25,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:25,144 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-10-13 19:53:25,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:25,144 INFO L225 Difference]: With dead ends: 40 [2019-10-13 19:53:25,144 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:25,145 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 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 19:53:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:25,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:25,146 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-10-13 19:53:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:25,147 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:25,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:25,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:25,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:25,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:25,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:25,404 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:25,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:25,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:25,404 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:25,405 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:25,405 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:25,405 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 50) no Hoare annotation was computed. [2019-10-13 19:53:25,405 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false [2019-10-13 19:53:25,405 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-10-13 19:53:25,406 INFO L439 ceAbstractionStarter]: At program point L36-2(lines 36 39) the Hoare annotation is: false [2019-10-13 19:53:25,406 INFO L443 ceAbstractionStarter]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2019-10-13 19:53:25,406 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: false [2019-10-13 19:53:25,406 INFO L443 ceAbstractionStarter]: For program point L21-3(lines 21 24) no Hoare annotation was computed. [2019-10-13 19:53:25,406 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 50) no Hoare annotation was computed. [2019-10-13 19:53:25,407 INFO L443 ceAbstractionStarter]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2019-10-13 19:53:25,407 INFO L439 ceAbstractionStarter]: At program point L46-3(lines 46 48) the Hoare annotation is: false [2019-10-13 19:53:25,407 INFO L443 ceAbstractionStarter]: For program point L46-4(lines 46 48) no Hoare annotation was computed. [2019-10-13 19:53:25,408 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 50) the Hoare annotation is: true [2019-10-13 19:53:25,408 INFO L439 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: false [2019-10-13 19:53:25,408 INFO L443 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2019-10-13 19:53:25,408 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false [2019-10-13 19:53:25,408 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-10-13 19:53:25,408 INFO L439 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: false [2019-10-13 19:53:25,409 INFO L443 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2019-10-13 19:53:25,409 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 19) the Hoare annotation is: false [2019-10-13 19:53:25,409 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2019-10-13 19:53:25,409 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 44) the Hoare annotation is: false [2019-10-13 19:53:25,410 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 44) no Hoare annotation was computed. [2019-10-13 19:53:25,411 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: false [2019-10-13 19:53:25,411 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2019-10-13 19:53:25,412 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:25,412 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:25,413 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:25,413 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:25,413 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:25,414 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:25,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:25 BoogieIcfgContainer [2019-10-13 19:53:25,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:25,436 INFO L168 Benchmark]: Toolchain (without parser) took 2065.43 ms. Allocated memory was 145.8 MB in the beginning and 234.4 MB in the end (delta: 88.6 MB). Free memory was 102.5 MB in the beginning and 203.4 MB in the end (delta: -100.9 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,437 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.91 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 182.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,439 INFO L168 Benchmark]: Boogie Preprocessor took 42.96 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 179.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,440 INFO L168 Benchmark]: RCFGBuilder took 382.79 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 163.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,441 INFO L168 Benchmark]: TraceAbstraction took 1317.64 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 203.4 MB in the end (delta: -40.3 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:25,445 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.91 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 182.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.96 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 179.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 382.79 ms. Allocated memory is still 202.9 MB. Free memory was 179.7 MB in the beginning and 163.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1317.64 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 203.4 MB in the end (delta: -40.3 MB). Peak memory consumption was 81.0 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: 46]: Loop Invariant Derived loop invariant: 0 - 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, 37 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 15 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 15 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 5280 SizeOfPredicates, 1 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 21/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 115, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9779411764705882, AVG_VARS_REMOVED_DURING_WEAKENING: 0.47058823529411764, AVG_WEAKENED_CONJUNCTS: 0.17647058823529413, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...