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_partial_init_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:23,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:23,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:23,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:23,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:23,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:23,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:23,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:23,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:23,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:23,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:23,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:23,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:23,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:23,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:23,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:23,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:23,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:23,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:23,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:23,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:23,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:23,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:23,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:23,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:23,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:23,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:23,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:23,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:53:23,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:23,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:23,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:23,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:23,760 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:23,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:23,761 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:23,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:23,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:23,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:23,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:23,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:23,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:23,763 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:23,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:23,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:23,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:23,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:23,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:23,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:23,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:23,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:23,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:23,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:23,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:23,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:23,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:23,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:23,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:24,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:24,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:24,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:24,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:24,065 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:24,066 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_partial_init_ground.i [2019-10-13 19:53:24,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56bcb69c/5d7dd522a67742ed8169a6fa3c002e9e/FLAG026fe7635 [2019-10-13 19:53:24,585 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:24,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_partial_init_ground.i [2019-10-13 19:53:24,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56bcb69c/5d7dd522a67742ed8169a6fa3c002e9e/FLAG026fe7635 [2019-10-13 19:53:24,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56bcb69c/5d7dd522a67742ed8169a6fa3c002e9e [2019-10-13 19:53:25,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:25,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:25,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:25,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:25,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:25,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:24" (1/1) ... [2019-10-13 19:53:25,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dc86bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25, skipping insertion in model container [2019-10-13 19:53:25,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:24" (1/1) ... [2019-10-13 19:53:25,020 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:25,038 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:25,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:25,285 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:25,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:25,324 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:25,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25 WrapperNode [2019-10-13 19:53:25,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:25,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:25,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:25,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:25,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... [2019-10-13 19:53:25,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:25,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:25,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:25,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:25,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:25,784 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:25,785 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:53:25,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:25 BoogieIcfgContainer [2019-10-13 19:53:25,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:25,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:25,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:25,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:25,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:24" (1/3) ... [2019-10-13 19:53:25,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c94010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:25, skipping insertion in model container [2019-10-13 19:53:25,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:25" (2/3) ... [2019-10-13 19:53:25,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c94010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:25, skipping insertion in model container [2019-10-13 19:53:25,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:25" (3/3) ... [2019-10-13 19:53:25,800 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_partial_init_ground.i [2019-10-13 19:53:25,818 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:25,826 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:25,837 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:25,860 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:25,861 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:25,861 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:25,861 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:25,861 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:25,861 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:25,861 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:25,861 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:25,877 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-13 19:53:25,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 19:53:25,882 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:25,882 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:25,884 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:25,889 INFO L82 PathProgramCache]: Analyzing trace with hash -267634740, now seen corresponding path program 1 times [2019-10-13 19:53:25,895 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:25,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562739586] [2019-10-13 19:53:25,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:25,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:25,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:26,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562739586] [2019-10-13 19:53:26,018 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:26,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152236325] [2019-10-13 19:53:26,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:26,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:26,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,042 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-13 19:53:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,076 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2019-10-13 19:53:26,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:26,078 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-13 19:53:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,087 INFO L225 Difference]: With dead ends: 58 [2019-10-13 19:53:26,088 INFO L226 Difference]: Without dead ends: 28 [2019-10-13 19:53:26,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-10-13 19:53:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-10-13 19:53:26,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-13 19:53:26,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2019-10-13 19:53:26,133 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 15 [2019-10-13 19:53:26,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,133 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-13 19:53:26,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2019-10-13 19:53:26,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 19:53:26,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,136 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,137 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash 814551547, now seen corresponding path program 1 times [2019-10-13 19:53:26,138 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050455066] [2019-10-13 19:53:26,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:26,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050455066] [2019-10-13 19:53:26,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:26,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73063637] [2019-10-13 19:53:26,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:26,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:26,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:26,204 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2019-10-13 19:53:26,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,266 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2019-10-13 19:53:26,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:26,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-13 19:53:26,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,268 INFO L225 Difference]: With dead ends: 53 [2019-10-13 19:53:26,269 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 19:53:26,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 19:53:26,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2019-10-13 19:53:26,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-13 19:53:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-10-13 19:53:26,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 15 [2019-10-13 19:53:26,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,278 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-10-13 19:53:26,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:26,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-10-13 19:53:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 19:53:26,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,280 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,280 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1658683186, now seen corresponding path program 1 times [2019-10-13 19:53:26,281 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985155214] [2019-10-13 19:53:26,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:26,399 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985155214] [2019-10-13 19:53:26,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:26,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:53:26,400 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59850095] [2019-10-13 19:53:26,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:53:26,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:53:26,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:26,401 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 4 states. [2019-10-13 19:53:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,434 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2019-10-13 19:53:26,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:53:26,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-13 19:53:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,436 INFO L225 Difference]: With dead ends: 52 [2019-10-13 19:53:26,436 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 19:53:26,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 19:53:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-10-13 19:53:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 19:53:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-10-13 19:53:26,445 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 20 [2019-10-13 19:53:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,445 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-10-13 19:53:26,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:53:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-10-13 19:53:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 19:53:26,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:26,447 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:26,447 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,448 INFO L82 PathProgramCache]: Analyzing trace with hash 978624816, now seen corresponding path program 1 times [2019-10-13 19:53:26,448 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:26,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411246081] [2019-10-13 19:53:26,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:26,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:26,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411246081] [2019-10-13 19:53:26,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483958040] [2019-10-13 19:53:26,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:26,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:26,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:26,641 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:26,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1782440619] [2019-10-13 19:53:26,686 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-10-13 19:53:26,724 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:26,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:26,784 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:26,786 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 28 variables. [2019-10-13 19:53:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:26,790 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:26,825 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:26,826 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:26,827 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-10-13 19:53:26,828 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:26,829 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:26,829 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:26,829 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261867985] [2019-10-13 19:53:26,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:26,830 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:26,831 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:26,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:26,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,831 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 2 states. [2019-10-13 19:53:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:26,834 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2019-10-13 19:53:26,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:26,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-13 19:53:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:26,835 INFO L225 Difference]: With dead ends: 32 [2019-10-13 19:53:26,835 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:26,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:26,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-13 19:53:26,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:26,838 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:26,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:26,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:27,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:27,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:27,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,103 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,103 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,104 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,104 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:27,104 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:27,104 INFO L443 ceAbstractionStarter]: For program point L27-2(lines 27 29) no Hoare annotation was computed. [2019-10-13 19:53:27,104 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 31) no Hoare annotation was computed. [2019-10-13 19:53:27,104 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 29) the Hoare annotation is: (and (= main_~x~0 0) (= main_~j~0 0)) [2019-10-13 19:53:27,105 INFO L443 ceAbstractionStarter]: For program point L27-4(lines 27 29) no Hoare annotation was computed. [2019-10-13 19:53:27,105 INFO L439 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: false [2019-10-13 19:53:27,105 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-10-13 19:53:27,105 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 26) no Hoare annotation was computed. [2019-10-13 19:53:27,105 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 26) the Hoare annotation is: (and (= main_~x~0 0) (= main_~j~0 0)) [2019-10-13 19:53:27,105 INFO L443 ceAbstractionStarter]: For program point L24-4(lines 24 26) no Hoare annotation was computed. [2019-10-13 19:53:27,105 INFO L443 ceAbstractionStarter]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2019-10-13 19:53:27,106 INFO L439 ceAbstractionStarter]: At program point L12-3(lines 12 15) the Hoare annotation is: false [2019-10-13 19:53:27,106 INFO L443 ceAbstractionStarter]: For program point L12-4(lines 12 15) no Hoare annotation was computed. [2019-10-13 19:53:27,106 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: false [2019-10-13 19:53:27,117 INFO L443 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-10-13 19:53:27,117 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 22) no Hoare annotation was computed. [2019-10-13 19:53:27,117 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: false [2019-10-13 19:53:27,117 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2019-10-13 19:53:27,118 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 5 31) no Hoare annotation was computed. [2019-10-13 19:53:27,118 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 5 31) the Hoare annotation is: true [2019-10-13 19:53:27,118 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 21) no Hoare annotation was computed. [2019-10-13 19:53:27,118 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,121 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,122 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:27,122 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,122 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,122 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:27,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:27 BoogieIcfgContainer [2019-10-13 19:53:27,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:27,146 INFO L168 Benchmark]: Toolchain (without parser) took 2139.88 ms. Allocated memory was 146.8 MB in the beginning and 232.8 MB in the end (delta: 86.0 MB). Free memory was 103.1 MB in the beginning and 201.0 MB in the end (delta: -97.9 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,149 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.41 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,153 INFO L168 Benchmark]: Boogie Preprocessor took 118.47 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.9 MB in the beginning and 180.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,159 INFO L168 Benchmark]: RCFGBuilder took 342.57 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 164.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,160 INFO L168 Benchmark]: TraceAbstraction took 1353.81 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.0 MB in the beginning and 201.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:27,173 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 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 320.41 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 92.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.47 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.9 MB in the beginning and 180.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 342.57 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 164.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1353.81 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.0 MB in the beginning and 201.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 80.4 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: 27]: Loop Invariant Derived loop invariant: x == 0 && j == 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x == 0 && j == 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: 102 SDtfs, 8 SDslu, 56 SDs, 0 SdLazy, 19 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 18 PreInvPairs, 20 NumberOfFragments, 23 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 2662 SizeOfPredicates, 1 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 104, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8947368421052632, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, AVG_WEAKENED_CONJUNCTS: 0.3157894736842105, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...