/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_copy3_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:31,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:31,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:31,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-06 22:26:31,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:31,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:31,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:31,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:31,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:31,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:31,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:31,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:31,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:31,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:31,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:31,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:31,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 22:26:31,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:31,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:31,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:31,436 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 22:26:31,462 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:31,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:31,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:31,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:31,463 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:31,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:31,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:31,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:31,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:31,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:31,465 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:31,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:31,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:31,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:31,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:31,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:31,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:31,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:31,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:31,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:31,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:31,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:31,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:31,468 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 22:26:31,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:31,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:31,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:31,776 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:31,776 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:31,777 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy3_ground-2.i [2019-11-06 22:26:31,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a541df8/bcf60640ea074c73a26d2f40d9a5dbf1/FLAGfa70a6eef [2019-11-06 22:26:32,322 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:32,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy3_ground-2.i [2019-11-06 22:26:32,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a541df8/bcf60640ea074c73a26d2f40d9a5dbf1/FLAGfa70a6eef [2019-11-06 22:26:32,746 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a541df8/bcf60640ea074c73a26d2f40d9a5dbf1 [2019-11-06 22:26:32,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:32,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:32,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:32,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:32,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:32,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:32" (1/1) ... [2019-11-06 22:26:32,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180c2d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:32, skipping insertion in model container [2019-11-06 22:26:32,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:32" (1/1) ... [2019-11-06 22:26:32,775 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:32,799 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:33,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:33,035 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:33,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:33,079 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:33,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33 WrapperNode [2019-11-06 22:26:33,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:33,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:33,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:33,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:33,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (1/1) ... [2019-11-06 22:26:33,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:33,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:33,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:33,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:33,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (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 22:26:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:26:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:33,610 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:33,612 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-06 22:26:33,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:33 BoogieIcfgContainer [2019-11-06 22:26:33,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:33,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:33,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:33,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:33,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:32" (1/3) ... [2019-11-06 22:26:33,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39659e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:33, skipping insertion in model container [2019-11-06 22:26:33,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:33" (2/3) ... [2019-11-06 22:26:33,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39659e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:33, skipping insertion in model container [2019-11-06 22:26:33,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:33" (3/3) ... [2019-11-06 22:26:33,622 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy3_ground-2.i [2019-11-06 22:26:33,631 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:33,638 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:33,650 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:33,675 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:33,675 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:33,675 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:33,675 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:33,675 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:33,675 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:33,675 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:33,676 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:33,691 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-06 22:26:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-06 22:26:33,696 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:33,697 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 22:26:33,699 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash -496428460, now seen corresponding path program 1 times [2019-11-06 22:26:33,712 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:33,713 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637778016] [2019-11-06 22:26:33,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:33,841 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 22:26:33,842 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637778016] [2019-11-06 22:26:33,843 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:33,843 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:33,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735999358] [2019-11-06 22:26:33,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:33,851 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:33,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:33,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:33,870 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-06 22:26:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:33,895 INFO L93 Difference]: Finished difference Result 58 states and 77 transitions. [2019-11-06 22:26:33,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:33,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-11-06 22:26:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:33,903 INFO L225 Difference]: With dead ends: 58 [2019-11-06 22:26:33,903 INFO L226 Difference]: Without dead ends: 28 [2019-11-06 22:26:33,906 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 22:26:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-06 22:26:33,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-06 22:26:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-06 22:26:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-11-06 22:26:33,944 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2019-11-06 22:26:33,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:33,944 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-11-06 22:26:33,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-11-06 22:26:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-06 22:26:33,946 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:33,946 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 22:26:33,947 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1263989582, now seen corresponding path program 1 times [2019-11-06 22:26:33,947 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:33,948 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677794447] [2019-11-06 22:26:33,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:34,013 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 22:26:34,013 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677794447] [2019-11-06 22:26:34,014 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:34,015 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:34,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056487305] [2019-11-06 22:26:34,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:34,023 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:34,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:34,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:34,024 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2019-11-06 22:26:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:34,051 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-11-06 22:26:34,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:34,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-06 22:26:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:34,053 INFO L225 Difference]: With dead ends: 50 [2019-11-06 22:26:34,054 INFO L226 Difference]: Without dead ends: 30 [2019-11-06 22:26:34,055 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 22:26:34,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-06 22:26:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-06 22:26:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-06 22:26:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-11-06 22:26:34,064 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 19 [2019-11-06 22:26:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:34,065 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-11-06 22:26:34,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-11-06 22:26:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-06 22:26:34,067 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:34,067 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] [2019-11-06 22:26:34,068 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1258945684, now seen corresponding path program 1 times [2019-11-06 22:26:34,070 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:34,071 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545369353] [2019-11-06 22:26:34,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:34,130 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 22:26:34,130 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545369353] [2019-11-06 22:26:34,131 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:34,131 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:34,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622645339] [2019-11-06 22:26:34,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:34,132 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:34,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:34,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:34,133 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2019-11-06 22:26:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:34,205 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2019-11-06 22:26:34,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:34,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-06 22:26:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:34,207 INFO L225 Difference]: With dead ends: 52 [2019-11-06 22:26:34,207 INFO L226 Difference]: Without dead ends: 35 [2019-11-06 22:26:34,208 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 22:26:34,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-06 22:26:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2019-11-06 22:26:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-06 22:26:34,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-11-06 22:26:34,215 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 21 [2019-11-06 22:26:34,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:34,215 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-11-06 22:26:34,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:34,215 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-11-06 22:26:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-06 22:26:34,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:34,219 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 22:26:34,219 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:34,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1930458438, now seen corresponding path program 1 times [2019-11-06 22:26:34,220 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:34,220 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992834435] [2019-11-06 22:26:34,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:26:34,324 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992834435] [2019-11-06 22:26:34,325 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113985898] [2019-11-06 22:26:34,325 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 22:26:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:34,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:34,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:26:34,430 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-06 22:26:34,487 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1516114772] [2019-11-06 22:26:34,493 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 28 [2019-11-06 22:26:34,531 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:34,532 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:34,591 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:34,593 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 34 variables. [2019-11-06 22:26:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:34,597 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:34,639 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:34,639 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:34,641 INFO L553 sIntCurrentIteration]: We unified 26 AI predicates to 26 [2019-11-06 22:26:34,642 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:34,642 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:34,643 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:34,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260275110] [2019-11-06 22:26:34,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:34,644 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:34,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:34,645 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 2 states. [2019-11-06 22:26:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:34,648 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2019-11-06 22:26:34,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:34,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2019-11-06 22:26:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:34,649 INFO L225 Difference]: With dead ends: 32 [2019-11-06 22:26:34,649 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:34,651 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 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 22:26:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:34,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-06 22:26:34,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:34,652 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:34,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:34,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:34,857 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:34,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:34,896 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:34,897 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:34,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:34,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:34,897 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:34,897 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 29) no Hoare annotation was computed. [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2019-11-06 22:26:34,898 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 17) the Hoare annotation is: false [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point L15-4(lines 15 17) no Hoare annotation was computed. [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2019-11-06 22:26:34,898 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 27) the Hoare annotation is: false [2019-11-06 22:26:34,898 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 27) no Hoare annotation was computed. [2019-11-06 22:26:34,899 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-11-06 22:26:34,899 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: false [2019-11-06 22:26:34,899 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2019-11-06 22:26:34,899 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 29) no Hoare annotation was computed. [2019-11-06 22:26:34,899 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 29) the Hoare annotation is: true [2019-11-06 22:26:34,899 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: false [2019-11-06 22:26:34,900 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-06 22:26:34,900 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-11-06 22:26:34,900 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: false [2019-11-06 22:26:34,900 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-11-06 22:26:34,900 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2019-11-06 22:26:34,900 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: false [2019-11-06 22:26:34,900 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 10 13) no Hoare annotation was computed. [2019-11-06 22:26:34,901 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:34,901 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:34,901 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:34,913 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:34,913 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:34,913 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:34,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:34 BoogieIcfgContainer [2019-11-06 22:26:34,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:34,929 INFO L168 Benchmark]: Toolchain (without parser) took 2168.08 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 102.9 MB in the beginning and 203.8 MB in the end (delta: -100.9 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,932 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.01 ms. Allocated memory is still 146.3 MB. Free memory was 102.7 MB in the beginning and 92.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,935 INFO L168 Benchmark]: Boogie Preprocessor took 125.35 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 92.4 MB in the beginning and 181.6 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,941 INFO L168 Benchmark]: RCFGBuilder took 404.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 164.2 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,943 INFO L168 Benchmark]: TraceAbstraction took 1309.29 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 164.2 MB in the beginning and 203.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:34,954 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 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 320.01 ms. Allocated memory is still 146.3 MB. Free memory was 102.7 MB in the beginning and 92.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.35 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 92.4 MB in the beginning and 181.6 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 404.56 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 164.2 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1309.29 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 164.2 MB in the beginning and 203.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 81.8 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 4 SDslu, 48 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 11 HoareAnnotationTreeSize, 14 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, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 3620 SizeOfPredicates, 1 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 104, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9134615384615384, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, AVG_WEAKENED_CONJUNCTS: 0.23076923076923078, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...