/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/sanfoundry_02_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:15,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:15,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:15,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:15,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:15,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:15,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:15,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:15,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:15,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:15,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:15,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:15,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:15,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:15,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:15,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:15,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:15,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:15,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:15,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:15,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:15,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:15,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:15,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:15,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:26:15,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:15,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:15,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:15,143 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 22:26:15,169 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:15,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:15,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:15,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:15,174 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:15,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:15,174 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:15,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:15,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:15,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:15,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:15,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:15,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:15,177 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:15,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:15,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:15,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:15,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:15,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:15,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:15,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:15,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:15,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:15,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:15,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:15,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:15,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:15,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:15,181 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 22:26:15,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:15,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:15,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:15,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:15,464 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:15,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_02_ground.i [2019-11-06 22:26:15,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c690a4c/8ef7092e6a7041edbd1c4088fe22e4ff/FLAGa94a2e4d3 [2019-11-06 22:26:15,990 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:15,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_02_ground.i [2019-11-06 22:26:16,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c690a4c/8ef7092e6a7041edbd1c4088fe22e4ff/FLAGa94a2e4d3 [2019-11-06 22:26:16,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6c690a4c/8ef7092e6a7041edbd1c4088fe22e4ff [2019-11-06 22:26:16,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:16,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:16,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:16,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:16,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:16,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb4d63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16, skipping insertion in model container [2019-11-06 22:26:16,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,367 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:16,385 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:16,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:16,553 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:16,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:16,599 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:16,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16 WrapperNode [2019-11-06 22:26:16,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:16,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:16,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:16,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:16,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (1/1) ... [2019-11-06 22:26:16,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:16,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:16,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:16,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:16,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (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 22:26:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:16,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:16,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:16,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:17,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:17,133 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-06 22:26:17,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:17 BoogieIcfgContainer [2019-11-06 22:26:17,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:17,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:17,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:17,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:17,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:16" (1/3) ... [2019-11-06 22:26:17,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f66780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:17, skipping insertion in model container [2019-11-06 22:26:17,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:16" (2/3) ... [2019-11-06 22:26:17,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f66780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:17, skipping insertion in model container [2019-11-06 22:26:17,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:17" (3/3) ... [2019-11-06 22:26:17,142 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_02_ground.i [2019-11-06 22:26:17,150 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:17,156 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:17,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:17,199 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:17,199 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:17,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:17,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:17,200 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:17,200 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:17,200 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:17,200 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-06 22:26:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:26:17,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:17,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:17,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:17,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1606204250, now seen corresponding path program 1 times [2019-11-06 22:26:17,242 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:17,242 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525197725] [2019-11-06 22:26:17,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:17,357 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 22:26:17,358 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525197725] [2019-11-06 22:26:17,359 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:17,359 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:17,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108286213] [2019-11-06 22:26:17,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:17,365 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:17,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:17,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:17,382 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-06 22:26:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:17,412 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2019-11-06 22:26:17,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:17,413 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-11-06 22:26:17,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:17,423 INFO L225 Difference]: With dead ends: 66 [2019-11-06 22:26:17,423 INFO L226 Difference]: Without dead ends: 32 [2019-11-06 22:26:17,427 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 22:26:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-06 22:26:17,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-06 22:26:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-06 22:26:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2019-11-06 22:26:17,472 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 17 [2019-11-06 22:26:17,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:17,473 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2019-11-06 22:26:17,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2019-11-06 22:26:17,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-06 22:26:17,475 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:17,476 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:17,476 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:17,477 INFO L82 PathProgramCache]: Analyzing trace with hash -729587696, now seen corresponding path program 1 times [2019-11-06 22:26:17,477 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:17,477 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438027285] [2019-11-06 22:26:17,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:17,551 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 22:26:17,551 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438027285] [2019-11-06 22:26:17,552 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:17,553 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:17,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651028735] [2019-11-06 22:26:17,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:17,555 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:17,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:17,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:17,556 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 3 states. [2019-11-06 22:26:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:17,599 INFO L93 Difference]: Finished difference Result 58 states and 74 transitions. [2019-11-06 22:26:17,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:17,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-06 22:26:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:17,601 INFO L225 Difference]: With dead ends: 58 [2019-11-06 22:26:17,601 INFO L226 Difference]: Without dead ends: 34 [2019-11-06 22:26:17,602 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 22:26:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-06 22:26:17,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-11-06 22:26:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-06 22:26:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2019-11-06 22:26:17,611 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 17 [2019-11-06 22:26:17,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:17,611 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2019-11-06 22:26:17,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2019-11-06 22:26:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-06 22:26:17,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:17,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:17,613 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash 617787630, now seen corresponding path program 1 times [2019-11-06 22:26:17,615 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:17,616 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091395896] [2019-11-06 22:26:17,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:17,678 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091395896] [2019-11-06 22:26:17,678 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:17,678 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:17,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571125026] [2019-11-06 22:26:17,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:17,679 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:17,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:17,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:17,680 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand 3 states. [2019-11-06 22:26:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:17,722 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2019-11-06 22:26:17,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:17,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-06 22:26:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:17,724 INFO L225 Difference]: With dead ends: 55 [2019-11-06 22:26:17,724 INFO L226 Difference]: Without dead ends: 38 [2019-11-06 22:26:17,725 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 22:26:17,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-06 22:26:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-11-06 22:26:17,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-06 22:26:17,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-06 22:26:17,733 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 19 [2019-11-06 22:26:17,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:17,733 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-06 22:26:17,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:17,733 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-06 22:26:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-06 22:26:17,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:17,735 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] [2019-11-06 22:26:17,735 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1226217789, now seen corresponding path program 1 times [2019-11-06 22:26:17,736 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:17,736 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034288623] [2019-11-06 22:26:17,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:17,827 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034288623] [2019-11-06 22:26:17,827 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517239372] [2019-11-06 22:26:17,828 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 22:26:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:17,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:17,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:17,934 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:17,980 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [328336659] [2019-11-06 22:26:17,991 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-11-06 22:26:18,036 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:18,036 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:18,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:18,101 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 27 variables. [2019-11-06 22:26:18,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:18,104 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:18,138 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:18,138 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:18,140 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-11-06 22:26:18,140 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:18,141 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:18,141 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8 [2019-11-06 22:26:18,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036465422] [2019-11-06 22:26:18,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:18,145 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:18,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:18,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:26:18,146 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 2 states. [2019-11-06 22:26:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:18,150 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2019-11-06 22:26:18,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:18,151 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-11-06 22:26:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:18,154 INFO L225 Difference]: With dead ends: 34 [2019-11-06 22:26:18,154 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:18,155 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:26:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:18,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:18,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:18,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-06 22:26:18,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:18,157 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:18,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:18,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:18,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:18,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:18,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:18,409 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:18,410 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:18,410 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:18,410 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:18,410 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:18,411 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:18,411 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:18,411 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 46) no Hoare annotation was computed. [2019-11-06 22:26:18,411 INFO L439 ceAbstractionStarter]: At program point L40(line 40) the Hoare annotation is: false [2019-11-06 22:26:18,411 INFO L443 ceAbstractionStarter]: For program point L40-1(line 40) no Hoare annotation was computed. [2019-11-06 22:26:18,411 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2019-11-06 22:26:18,412 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 25) no Hoare annotation was computed. [2019-11-06 22:26:18,412 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2019-11-06 22:26:18,412 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 36) no Hoare annotation was computed. [2019-11-06 22:26:18,412 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 28 36) no Hoare annotation was computed. [2019-11-06 22:26:18,412 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 5 46) no Hoare annotation was computed. [2019-11-06 22:26:18,413 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2019-11-06 22:26:18,413 INFO L439 ceAbstractionStarter]: At program point L13-3(lines 13 16) the Hoare annotation is: false [2019-11-06 22:26:18,413 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 16) no Hoare annotation was computed. [2019-11-06 22:26:18,413 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 44) no Hoare annotation was computed. [2019-11-06 22:26:18,413 INFO L439 ceAbstractionStarter]: At program point L42-3(lines 42 44) the Hoare annotation is: false [2019-11-06 22:26:18,415 INFO L443 ceAbstractionStarter]: For program point L42-4(lines 42 44) no Hoare annotation was computed. [2019-11-06 22:26:18,415 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 5 46) the Hoare annotation is: true [2019-11-06 22:26:18,415 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 37) the Hoare annotation is: false [2019-11-06 22:26:18,415 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 37) no Hoare annotation was computed. [2019-11-06 22:26:18,415 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-06 22:26:18,415 INFO L439 ceAbstractionStarter]: At program point L43-2(line 43) the Hoare annotation is: false [2019-11-06 22:26:18,416 INFO L443 ceAbstractionStarter]: For program point L43-3(line 43) no Hoare annotation was computed. [2019-11-06 22:26:18,416 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 41) no Hoare annotation was computed. [2019-11-06 22:26:18,416 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 41) the Hoare annotation is: false [2019-11-06 22:26:18,416 INFO L443 ceAbstractionStarter]: For program point L39-4(lines 39 41) no Hoare annotation was computed. [2019-11-06 22:26:18,416 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:18,416 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:18,417 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:18,417 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:18,417 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:18,417 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:18,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:18 BoogieIcfgContainer [2019-11-06 22:26:18,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:18,431 INFO L168 Benchmark]: Toolchain (without parser) took 2078.04 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 91.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,433 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.64 ms. Allocated memory is still 136.8 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,438 INFO L168 Benchmark]: Boogie Preprocessor took 126.58 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 178.9 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,444 INFO L168 Benchmark]: RCFGBuilder took 406.29 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 161.5 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,445 INFO L168 Benchmark]: TraceAbstraction took 1290.99 ms. Allocated memory is still 200.8 MB. Free memory was 160.8 MB in the beginning and 91.6 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:18,456 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 136.8 MB. Free memory was 118.8 MB in the beginning and 118.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 248.64 ms. Allocated memory is still 136.8 MB. Free memory was 100.6 MB in the beginning and 90.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.58 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 90.3 MB in the beginning and 178.9 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.29 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 161.5 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1290.99 ms. Allocated memory is still 200.8 MB. Free memory was 160.8 MB in the beginning and 91.6 MB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: 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: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 7 SDslu, 58 SDs, 0 SdLazy, 28 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 18 PreInvPairs, 18 NumberOfFragments, 11 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 2647 SizeOfPredicates, 1 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 114, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9285714285714286, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0952380952380953, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...