/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 -i ../../../trunk/examples/svcomp/loop-lit/bhmr2007.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:44:08,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:44:08,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:44:08,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:44:08,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:44:08,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:44:08,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:44:08,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:44:08,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:44:08,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:44:08,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:44:08,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:44:08,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:44:08,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:44:08,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:44:08,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:44:08,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:44:08,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:44:08,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:44:08,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:44:08,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:44:08,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:44:08,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:44:08,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:44:08,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:44:08,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:44:08,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:44:08,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:44:08,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:44:09,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:44:09,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:44:09,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:44:09,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:44:09,048 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:44:09,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:44:09,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:44:09,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:44:09,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:44:09,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:44:09,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:44:09,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:44:09,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:44:09,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:44:09,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:44:09,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:44:09,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:44:09,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:44:09,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:44:09,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:44:09,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:44:09,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:44:09,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:44:09,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:44:09,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:44:09,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:44:09,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:44:09,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:44:09,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:44:09,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:44:09,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:44:09,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:44:09,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:44:09,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:44:09,558 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:44:09,559 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/bhmr2007.i [2020-09-04 13:44:09,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc12a6987/0d1fdbee066d49e091337005fcb3a0bb/FLAG62ce6e23b [2020-09-04 13:44:10,186 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:44:10,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/bhmr2007.i [2020-09-04 13:44:10,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc12a6987/0d1fdbee066d49e091337005fcb3a0bb/FLAG62ce6e23b [2020-09-04 13:44:10,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc12a6987/0d1fdbee066d49e091337005fcb3a0bb [2020-09-04 13:44:10,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:44:10,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:44:10,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:44:10,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:44:10,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:44:10,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:10,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559edf52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10, skipping insertion in model container [2020-09-04 13:44:10,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:10,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:44:10,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:44:10,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:44:10,877 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:44:10,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:44:10,915 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:44:10,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10 WrapperNode [2020-09-04 13:44:10,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:44:10,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:44:10,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:44:10,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:44:10,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:10,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... [2020-09-04 13:44:11,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:44:11,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:44:11,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:44:11,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:44:11,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:44:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:44:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:44:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 13:44:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 13:44:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:44:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:44:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 13:44:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 13:44:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 13:44:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:44:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:44:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:44:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:44:11,336 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:44:11,336 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:44:11,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:44:11 BoogieIcfgContainer [2020-09-04 13:44:11,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:44:11,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:44:11,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:44:11,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:44:11,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:44:10" (1/3) ... [2020-09-04 13:44:11,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e785c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:44:11, skipping insertion in model container [2020-09-04 13:44:11,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:44:10" (2/3) ... [2020-09-04 13:44:11,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e785c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:44:11, skipping insertion in model container [2020-09-04 13:44:11,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:44:11" (3/3) ... [2020-09-04 13:44:11,351 INFO L109 eAbstractionObserver]: Analyzing ICFG bhmr2007.i [2020-09-04 13:44:11,363 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:44:11,375 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:44:11,397 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:44:11,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:44:11,427 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:44:11,428 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:44:11,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:44:11,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:44:11,428 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:44:11,428 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:44:11,428 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:44:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-04 13:44:11,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-04 13:44:11,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:11,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:11,456 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:11,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:11,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1473011041, now seen corresponding path program 1 times [2020-09-04 13:44:11,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:11,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853378043] [2020-09-04 13:44:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:11,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:11,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853378043] [2020-09-04 13:44:11,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:44:11,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-04 13:44:11,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670811177] [2020-09-04 13:44:11,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-04 13:44:11,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:11,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-04 13:44:11,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 13:44:11,649 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-09-04 13:44:11,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:11,674 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-09-04 13:44:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-04 13:44:11,676 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-09-04 13:44:11,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:11,685 INFO L225 Difference]: With dead ends: 33 [2020-09-04 13:44:11,685 INFO L226 Difference]: Without dead ends: 14 [2020-09-04 13:44:11,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 13:44:11,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-09-04 13:44:11,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-09-04 13:44:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-09-04 13:44:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-09-04 13:44:11,729 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2020-09-04 13:44:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:11,729 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-09-04 13:44:11,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-04 13:44:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-09-04 13:44:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-04 13:44:11,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:11,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:11,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:44:11,731 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:11,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:11,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1462852310, now seen corresponding path program 1 times [2020-09-04 13:44:11,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:11,733 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050120944] [2020-09-04 13:44:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:11,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:11,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050120944] [2020-09-04 13:44:11,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:44:11,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:44:11,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86837796] [2020-09-04 13:44:11,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:44:11,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:11,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:44:11,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:44:11,994 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2020-09-04 13:44:12,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:12,248 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-09-04 13:44:12,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:44:12,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-09-04 13:44:12,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:12,252 INFO L225 Difference]: With dead ends: 21 [2020-09-04 13:44:12,253 INFO L226 Difference]: Without dead ends: 16 [2020-09-04 13:44:12,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:44:12,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-04 13:44:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-09-04 13:44:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-04 13:44:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-09-04 13:44:12,267 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2020-09-04 13:44:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:12,268 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-09-04 13:44:12,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:44:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-09-04 13:44:12,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-04 13:44:12,269 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:12,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:12,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:44:12,271 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:12,273 INFO L82 PathProgramCache]: Analyzing trace with hash 467761921, now seen corresponding path program 1 times [2020-09-04 13:44:12,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:12,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211593477] [2020-09-04 13:44:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:12,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:12,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211593477] [2020-09-04 13:44:12,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980397615] [2020-09-04 13:44:12,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:44:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:12,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2020-09-04 13:44:12,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:44:12,832 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:44:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:12,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:44:12,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-09-04 13:44:12,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62823317] [2020-09-04 13:44:12,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 13:44:12,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:12,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 13:44:12,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:44:12,898 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 16 states. [2020-09-04 13:44:13,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:13,196 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2020-09-04 13:44:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 13:44:13,197 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2020-09-04 13:44:13,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:13,198 INFO L225 Difference]: With dead ends: 28 [2020-09-04 13:44:13,198 INFO L226 Difference]: Without dead ends: 22 [2020-09-04 13:44:13,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-09-04 13:44:13,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-04 13:44:13,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-09-04 13:44:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-09-04 13:44:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-09-04 13:44:13,205 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2020-09-04 13:44:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:13,206 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-09-04 13:44:13,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 13:44:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-09-04 13:44:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-04 13:44:13,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:44:13,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:44:13,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:44:13,422 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:44:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:44:13,422 INFO L82 PathProgramCache]: Analyzing trace with hash -798766796, now seen corresponding path program 1 times [2020-09-04 13:44:13,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:44:13,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790587846] [2020-09-04 13:44:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:44:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:13,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:44:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:44:13,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790587846] [2020-09-04 13:44:13,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803084236] [2020-09-04 13:44:13,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:44:13,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 22 conjunts are in the unsatisfiable core [2020-09-04 13:44:13,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:44:13,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-09-04 13:44:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:44:13,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:44:13,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2020-09-04 13:44:13,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266493360] [2020-09-04 13:44:13,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-04 13:44:13,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:44:13,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-04 13:44:13,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2020-09-04 13:44:13,920 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 19 states. [2020-09-04 13:44:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:44:14,437 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2020-09-04 13:44:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 13:44:14,437 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2020-09-04 13:44:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:44:14,439 INFO L225 Difference]: With dead ends: 28 [2020-09-04 13:44:14,439 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:44:14,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2020-09-04 13:44:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:44:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:44:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:44:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:44:14,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-09-04 13:44:14,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:44:14,443 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:44:14,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-04 13:44:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:44:14,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:44:14,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:44:14,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:44:14,792 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 13:44:14,792 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:44:14,792 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:44:14,792 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:44:14,793 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:44:14,793 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:44:14,793 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:14,793 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 13:44:14,793 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:14,793 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 13:44:14,794 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 29) the Hoare annotation is: true [2020-09-04 13:44:14,794 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-04 13:44:14,794 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 29) no Hoare annotation was computed. [2020-09-04 13:44:14,794 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-09-04 13:44:14,794 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-04 13:44:14,795 INFO L268 CegarLoopResult]: For program point L18-2(lines 18 24) no Hoare annotation was computed. [2020-09-04 13:44:14,795 INFO L264 CegarLoopResult]: At program point L17-2(lines 17 26) the Hoare annotation is: (let ((.cse0 (+ main_~a~0 main_~b~0)) (.cse1 (* 3 main_~i~0))) (and (<= .cse0 (* 3 main_~n~0)) (<= .cse1 .cse0) (<= .cse0 .cse1))) [2020-09-04 13:44:14,796 INFO L264 CegarLoopResult]: At program point L17-3(lines 17 26) the Hoare annotation is: (let ((.cse1 (* 3 main_~n~0)) (.cse0 (+ main_~a~0 main_~b~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-04 13:44:14,796 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 29) no Hoare annotation was computed. [2020-09-04 13:44:14,796 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 13:44:14,797 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-04 13:44:14,797 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-04 13:44:14,797 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-04 13:44:14,797 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-04 13:44:14,797 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-04 13:44:14,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:44:14 BoogieIcfgContainer [2020-09-04 13:44:14,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:44:14,824 INFO L168 Benchmark]: Toolchain (without parser) took 4242.30 ms. Allocated memory was 143.1 MB in the beginning and 241.2 MB in the end (delta: 98.0 MB). Free memory was 106.2 MB in the beginning and 149.2 MB in the end (delta: -43.1 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,826 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.50 ms. Allocated memory is still 143.1 MB. Free memory was 106.2 MB in the beginning and 96.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,831 INFO L168 Benchmark]: Boogie Preprocessor took 118.46 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 96.4 MB in the beginning and 182.6 MB in the end (delta: -86.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,837 INFO L168 Benchmark]: RCFGBuilder took 305.46 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 169.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,838 INFO L168 Benchmark]: TraceAbstraction took 3477.76 ms. Allocated memory was 203.9 MB in the beginning and 241.2 MB in the end (delta: 37.2 MB). Free memory was 169.7 MB in the beginning and 149.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:44:14,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 124.7 MB in the beginning and 124.2 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 332.50 ms. Allocated memory is still 143.1 MB. Free memory was 106.2 MB in the beginning and 96.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.46 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 96.4 MB in the beginning and 182.6 MB in the end (delta: -86.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 305.46 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 169.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3477.76 ms. Allocated memory was 203.9 MB in the beginning and 241.2 MB in the end (delta: 37.2 MB). Free memory was 169.7 MB in the beginning and 149.2 MB in the end (delta: 20.4 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 17]: Loop Invariant Derived loop invariant: (a + b <= 3 * n && 3 * i <= a + b) && a + b <= 3 * i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 25 SDslu, 158 SDs, 0 SdLazy, 297 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 127 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 137 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 7949 SizeOfPredicates, 6 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...