/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_copy7_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:37,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:37,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:37,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:37,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:37,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:37,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:37,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:37,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:37,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:37,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:37,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:37,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:37,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:37,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:37,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:37,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:37,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:37,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:37,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:37,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:37,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:37,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:37,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:37,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:26:37,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:37,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:37,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:37,205 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 22:26:37,226 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:37,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:37,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:37,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:37,229 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:37,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:37,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:37,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:37,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:37,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:37,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:37,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:37,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:37,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:37,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:37,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:37,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:37,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:37,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:37,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:37,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:37,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:37,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:37,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:37,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:37,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:37,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:37,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:37,236 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 22:26:37,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:37,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:37,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:37,576 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:37,576 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:37,577 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy7_ground-1.i [2019-11-06 22:26:37,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b33f1433/c2532764c787459bb0023260c94191e4/FLAG9d52a5517 [2019-11-06 22:26:38,127 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:38,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy7_ground-1.i [2019-11-06 22:26:38,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b33f1433/c2532764c787459bb0023260c94191e4/FLAG9d52a5517 [2019-11-06 22:26:38,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b33f1433/c2532764c787459bb0023260c94191e4 [2019-11-06 22:26:38,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:38,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:38,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:38,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:38,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:38,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66495d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38, skipping insertion in model container [2019-11-06 22:26:38,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,502 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:38,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:38,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:38,723 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:38,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:38,773 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:38,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38 WrapperNode [2019-11-06 22:26:38,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:38,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:38,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:38,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:38,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (1/1) ... [2019-11-06 22:26:38,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:38,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:38,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:38,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:38,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (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 22:26:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:38,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:38,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:26:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:38,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:39,365 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:39,366 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-06 22:26:39,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:39 BoogieIcfgContainer [2019-11-06 22:26:39,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:39,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:39,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:39,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:39,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:38" (1/3) ... [2019-11-06 22:26:39,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f239da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:39, skipping insertion in model container [2019-11-06 22:26:39,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:38" (2/3) ... [2019-11-06 22:26:39,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f239da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:39, skipping insertion in model container [2019-11-06 22:26:39,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:39" (3/3) ... [2019-11-06 22:26:39,383 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy7_ground-1.i [2019-11-06 22:26:39,393 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:39,402 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:39,413 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:39,442 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:39,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:39,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:39,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:39,443 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:39,443 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:39,443 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:39,443 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-06 22:26:39,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 22:26:39,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:39,473 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:39,475 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2029657296, now seen corresponding path program 1 times [2019-11-06 22:26:39,492 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:39,492 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134344483] [2019-11-06 22:26:39,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:39,725 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 22:26:39,732 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134344483] [2019-11-06 22:26:39,733 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:39,734 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:39,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706039903] [2019-11-06 22:26:39,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:39,744 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:39,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:39,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:39,766 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-06 22:26:39,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:39,811 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-11-06 22:26:39,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:39,813 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-11-06 22:26:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:39,824 INFO L225 Difference]: With dead ends: 82 [2019-11-06 22:26:39,825 INFO L226 Difference]: Without dead ends: 40 [2019-11-06 22:26:39,832 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 22:26:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-06 22:26:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-11-06 22:26:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-06 22:26:39,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2019-11-06 22:26:39,890 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2019-11-06 22:26:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:39,891 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2019-11-06 22:26:39,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2019-11-06 22:26:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 22:26:39,895 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:39,896 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:39,896 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:39,897 INFO L82 PathProgramCache]: Analyzing trace with hash -2073025378, now seen corresponding path program 1 times [2019-11-06 22:26:39,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:39,898 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612044918] [2019-11-06 22:26:39,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:40,013 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 22:26:40,013 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612044918] [2019-11-06 22:26:40,013 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:40,014 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:40,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917797885] [2019-11-06 22:26:40,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:40,019 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:40,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:40,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:40,020 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2019-11-06 22:26:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:40,067 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2019-11-06 22:26:40,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:40,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-06 22:26:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:40,070 INFO L225 Difference]: With dead ends: 74 [2019-11-06 22:26:40,070 INFO L226 Difference]: Without dead ends: 42 [2019-11-06 22:26:40,071 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 22:26:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-06 22:26:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2019-11-06 22:26:40,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-06 22:26:40,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2019-11-06 22:26:40,082 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 27 [2019-11-06 22:26:40,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:40,082 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2019-11-06 22:26:40,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:40,083 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2019-11-06 22:26:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-06 22:26:40,084 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:40,084 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:40,084 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:40,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash -55785284, now seen corresponding path program 1 times [2019-11-06 22:26:40,085 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:40,085 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112695296] [2019-11-06 22:26:40,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:40,151 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 22:26:40,151 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112695296] [2019-11-06 22:26:40,152 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:40,152 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:40,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47382515] [2019-11-06 22:26:40,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:40,153 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:40,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:40,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:40,154 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 3 states. [2019-11-06 22:26:40,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:40,291 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2019-11-06 22:26:40,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:40,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-11-06 22:26:40,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:40,293 INFO L225 Difference]: With dead ends: 84 [2019-11-06 22:26:40,293 INFO L226 Difference]: Without dead ends: 55 [2019-11-06 22:26:40,294 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 22:26:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-06 22:26:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2019-11-06 22:26:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-06 22:26:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2019-11-06 22:26:40,303 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 29 [2019-11-06 22:26:40,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:40,304 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2019-11-06 22:26:40,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2019-11-06 22:26:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-06 22:26:40,308 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:40,308 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:40,308 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:40,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1132383374, now seen corresponding path program 1 times [2019-11-06 22:26:40,309 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:40,309 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103081119] [2019-11-06 22:26:40,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:40,419 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:40,420 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103081119] [2019-11-06 22:26:40,420 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880384] [2019-11-06 22:26:40,420 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 22:26:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:40,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:40,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:40,584 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-06 22:26:40,621 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [409138262] [2019-11-06 22:26:40,628 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 44 [2019-11-06 22:26:40,672 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:40,673 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:40,744 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:40,747 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 50 variables. [2019-11-06 22:26:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:40,752 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:40,822 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:40,822 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:40,827 INFO L553 sIntCurrentIteration]: We unified 42 AI predicates to 42 [2019-11-06 22:26:40,828 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:40,828 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:40,829 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:40,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840260580] [2019-11-06 22:26:40,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:40,831 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:40,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:40,833 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 2 states. [2019-11-06 22:26:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:40,846 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2019-11-06 22:26:40,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:40,846 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 43 [2019-11-06 22:26:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:40,846 INFO L225 Difference]: With dead ends: 48 [2019-11-06 22:26:40,847 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:40,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:40,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:40,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2019-11-06 22:26:40,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:40,849 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:40,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:40,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:41,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:41,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:41,105 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:41,106 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:41,106 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:41,106 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:41,106 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:41,106 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:41,106 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:41,106 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 45) no Hoare annotation was computed. [2019-11-06 22:26:41,106 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 21) no Hoare annotation was computed. [2019-11-06 22:26:41,107 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: false [2019-11-06 22:26:41,107 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2019-11-06 22:26:41,107 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 30) no Hoare annotation was computed. [2019-11-06 22:26:41,107 INFO L439 ceAbstractionStarter]: At program point L28-3(lines 28 30) the Hoare annotation is: false [2019-11-06 22:26:41,107 INFO L443 ceAbstractionStarter]: For program point L28-4(lines 28 30) no Hoare annotation was computed. [2019-11-06 22:26:41,107 INFO L443 ceAbstractionStarter]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2019-11-06 22:26:41,107 INFO L439 ceAbstractionStarter]: At program point L37-3(lines 37 39) the Hoare annotation is: false [2019-11-06 22:26:41,108 INFO L443 ceAbstractionStarter]: For program point L37-4(lines 37 39) no Hoare annotation was computed. [2019-11-06 22:26:41,108 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 45) no Hoare annotation was computed. [2019-11-06 22:26:41,108 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 45) the Hoare annotation is: true [2019-11-06 22:26:41,108 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2019-11-06 22:26:41,108 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 24) the Hoare annotation is: false [2019-11-06 22:26:41,108 INFO L443 ceAbstractionStarter]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2019-11-06 22:26:41,108 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 17) no Hoare annotation was computed. [2019-11-06 22:26:41,109 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: false [2019-11-06 22:26:41,109 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2019-11-06 22:26:41,109 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 33) no Hoare annotation was computed. [2019-11-06 22:26:41,109 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 33) the Hoare annotation is: false [2019-11-06 22:26:41,109 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 33) no Hoare annotation was computed. [2019-11-06 22:26:41,109 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2019-11-06 22:26:41,110 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 43) the Hoare annotation is: false [2019-11-06 22:26:41,110 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2019-11-06 22:26:41,110 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2019-11-06 22:26:41,110 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 27) the Hoare annotation is: false [2019-11-06 22:26:41,110 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 27) no Hoare annotation was computed. [2019-11-06 22:26:41,110 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: false [2019-11-06 22:26:41,111 INFO L443 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2019-11-06 22:26:41,111 INFO L443 ceAbstractionStarter]: For program point L34-2(lines 34 36) no Hoare annotation was computed. [2019-11-06 22:26:41,111 INFO L439 ceAbstractionStarter]: At program point L34-3(lines 34 36) the Hoare annotation is: false [2019-11-06 22:26:41,111 INFO L443 ceAbstractionStarter]: For program point L34-4(lines 34 36) no Hoare annotation was computed. [2019-11-06 22:26:41,111 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:41,111 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:41,111 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:41,112 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:41,112 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:41,112 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:41,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:41 BoogieIcfgContainer [2019-11-06 22:26:41,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:41,124 INFO L168 Benchmark]: Toolchain (without parser) took 2637.11 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 102.9 MB in the beginning and 179.4 MB in the end (delta: -76.6 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:41,124 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-06 22:26:41,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.03 ms. Allocated memory is still 137.9 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:41,126 INFO L168 Benchmark]: Boogie Preprocessor took 127.07 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 179.0 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:41,127 INFO L168 Benchmark]: RCFGBuilder took 466.25 ms. Allocated memory is still 201.3 MB. Free memory was 178.0 MB in the beginning and 156.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:41,128 INFO L168 Benchmark]: TraceAbstraction took 1752.17 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 155.8 MB in the beginning and 179.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:41,132 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.03 ms. Allocated memory is still 137.9 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.07 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 179.0 MB in the end (delta: -87.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.25 ms. Allocated memory is still 201.3 MB. Free memory was 178.0 MB in the beginning and 156.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1752.17 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 155.8 MB in the beginning and 179.4 MB in the end (delta: -23.7 MB). Peak memory consumption was 8.8 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 40 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 18 PreInvPairs, 18 NumberOfFragments, 15 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 8292 SizeOfPredicates, 1 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 22/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 125, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8988095238095238, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0952380952380953, AVG_WEAKENED_CONJUNCTS: 0.14285714285714285, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...