/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loop-new/count_by_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:35:06,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:35:06,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:35:06,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:35:07,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:35:07,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:35:07,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:35:07,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:35:07,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:35:07,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:35:07,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:35:07,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:35:07,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:35:07,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:35:07,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:35:07,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:35:07,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:35:07,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:35:07,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:35:07,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:35:07,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:35:07,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:35:07,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:35:07,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:35:07,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:35:07,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:35:07,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:35:07,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:35:07,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:35:07,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:35:07,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:35:07,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:35:07,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:35:07,094 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:35:07,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:35:07,094 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:35:07,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:35:07,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:35:07,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:35:07,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:35:07,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:35:07,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:35:07,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:35:07,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:35:07,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:35:07,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:07,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:35:07,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:35:07,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:35:07,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:35:07,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:35:07,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:35:07,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:35:07,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:35:07,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:35:07,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:35:07,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:35:07,397 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:35:07,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1.i [2019-11-07 00:35:07,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316de85a6/b866c7ec935a4108bd02d18fe6507e89/FLAG50b6c23aa [2019-11-07 00:35:07,952 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:35:07,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1.i [2019-11-07 00:35:07,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316de85a6/b866c7ec935a4108bd02d18fe6507e89/FLAG50b6c23aa [2019-11-07 00:35:08,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/316de85a6/b866c7ec935a4108bd02d18fe6507e89 [2019-11-07 00:35:08,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:35:08,354 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:35:08,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:08,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:35:08,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:35:08,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5899cff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08, skipping insertion in model container [2019-11-07 00:35:08,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,374 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:35:08,396 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:35:08,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:08,584 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:35:08,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:35:08,618 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:35:08,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08 WrapperNode [2019-11-07 00:35:08,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:35:08,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:35:08,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:35:08,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:35:08,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... [2019-11-07 00:35:08,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:35:08,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:35:08,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:35:08,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:35:08,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:35:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:35:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:35:08,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 00:35:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:35:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:35:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 00:35:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 00:35:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:35:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:35:08,935 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:35:08,935 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 00:35:08,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:08 BoogieIcfgContainer [2019-11-07 00:35:08,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:35:08,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:35:08,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:35:08,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:35:08,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:35:08" (1/3) ... [2019-11-07 00:35:08,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d11f927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:08, skipping insertion in model container [2019-11-07 00:35:08,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:35:08" (2/3) ... [2019-11-07 00:35:08,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d11f927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:35:08, skipping insertion in model container [2019-11-07 00:35:08,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:35:08" (3/3) ... [2019-11-07 00:35:08,945 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1.i [2019-11-07 00:35:08,955 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:35:08,962 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:35:08,974 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:35:08,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:35:08,999 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:35:08,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:35:08,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:35:08,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:35:08,999 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:35:08,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:35:09,000 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:35:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-07 00:35:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:35:09,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:09,024 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:09,026 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2019-11-07 00:35:09,038 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:09,039 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121361811] [2019-11-07 00:35:09,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:09,120 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121361811] [2019-11-07 00:35:09,121 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:09,121 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:35:09,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631733808] [2019-11-07 00:35:09,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:35:09,127 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:09,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:35:09,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:35:09,140 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-11-07 00:35:09,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:09,159 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-11-07 00:35:09,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:35:09,160 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-07 00:35:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:09,168 INFO L225 Difference]: With dead ends: 31 [2019-11-07 00:35:09,168 INFO L226 Difference]: Without dead ends: 12 [2019-11-07 00:35:09,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:35:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-07 00:35:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-07 00:35:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-07 00:35:09,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-07 00:35:09,206 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-11-07 00:35:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:09,206 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-07 00:35:09,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:35:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-07 00:35:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 00:35:09,207 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:09,208 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:09,208 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:09,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1877050693, now seen corresponding path program 1 times [2019-11-07 00:35:09,209 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:09,209 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154199316] [2019-11-07 00:35:09,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:09,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:09,247 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154199316] [2019-11-07 00:35:09,248 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:09,248 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:35:09,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365819392] [2019-11-07 00:35:09,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:35:09,250 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:09,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:35:09,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:35:09,251 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-11-07 00:35:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:09,269 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-07 00:35:09,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:35:09,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-07 00:35:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:09,271 INFO L225 Difference]: With dead ends: 19 [2019-11-07 00:35:09,271 INFO L226 Difference]: Without dead ends: 14 [2019-11-07 00:35:09,272 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:35:09,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-07 00:35:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-11-07 00:35:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-07 00:35:09,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-11-07 00:35:09,277 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-11-07 00:35:09,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:09,277 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-11-07 00:35:09,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:35:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-11-07 00:35:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 00:35:09,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:09,278 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:09,278 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:09,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1175909113, now seen corresponding path program 1 times [2019-11-07 00:35:09,279 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:09,280 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501825354] [2019-11-07 00:35:09,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:09,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:09,375 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501825354] [2019-11-07 00:35:09,375 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692106328] [2019-11-07 00:35:09,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:09,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 00:35:09,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:35:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:09,435 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:35:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 00:35:09,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [680014023] [2019-11-07 00:35:09,514 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 13 [2019-11-07 00:35:09,546 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:35:09,546 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:35:09,654 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 00:35:09,657 INFO L272 AbstractInterpreter]: Visited 12 different actions 27 times. Merged at 2 different actions 10 times. Widened at 1 different actions 1 times. Performed 45 root evaluator evaluations with a maximum evaluation depth of 4. Performed 45 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2019-11-07 00:35:09,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:09,662 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 00:35:09,662 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:35:09,663 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2019-11-07 00:35:09,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435278798] [2019-11-07 00:35:09,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:35:09,664 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:09,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:35:09,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:35:09,665 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-11-07 00:35:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:09,729 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-11-07 00:35:09,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:35:09,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-07 00:35:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:09,731 INFO L225 Difference]: With dead ends: 24 [2019-11-07 00:35:09,731 INFO L226 Difference]: Without dead ends: 19 [2019-11-07 00:35:09,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:35:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-07 00:35:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-07 00:35:09,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-07 00:35:09,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-07 00:35:09,738 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2019-11-07 00:35:09,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:09,738 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-07 00:35:09,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:35:09,739 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-07 00:35:09,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 00:35:09,740 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:35:09,740 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:35:09,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:35:09,945 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:35:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:35:09,945 INFO L82 PathProgramCache]: Analyzing trace with hash 263802547, now seen corresponding path program 2 times [2019-11-07 00:35:09,946 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:35:09,946 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293626880] [2019-11-07 00:35:09,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:35:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:35:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-07 00:35:10,071 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293626880] [2019-11-07 00:35:10,071 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:35:10,071 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:35:10,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024742310] [2019-11-07 00:35:10,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:35:10,072 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:35:10,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:35:10,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:35:10,073 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-11-07 00:35:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:35:10,107 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-11-07 00:35:10,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:35:10,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-07 00:35:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:35:10,108 INFO L225 Difference]: With dead ends: 19 [2019-11-07 00:35:10,108 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:35:10,108 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:35:10,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:35:10,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:35:10,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:35:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:35:10,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-07 00:35:10,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:35:10,110 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:35:10,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:35:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:35:10,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:35:10,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:35:10,186 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-07 00:35:10,186 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:10,186 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:35:10,186 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-07 00:35:10,187 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:35:10,187 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:35:10,187 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2019-11-07 00:35:10,187 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2019-11-07 00:35:10,187 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-07 00:35:10,187 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2019-11-07 00:35:10,188 INFO L443 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2019-11-07 00:35:10,188 INFO L439 ceAbstractionStarter]: At program point L12-3(line 12) the Hoare annotation is: (<= main_~i~0 1000000) [2019-11-07 00:35:10,188 INFO L439 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (and (< 999999 main_~i~0) (<= main_~i~0 1000000)) [2019-11-07 00:35:10,188 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-11-07 00:35:10,189 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:10,189 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-07 00:35:10,189 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-07 00:35:10,189 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-07 00:35:10,189 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-11-07 00:35:10,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:35:10 BoogieIcfgContainer [2019-11-07 00:35:10,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:35:10,206 INFO L168 Benchmark]: Toolchain (without parser) took 1851.46 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 103.0 MB in the beginning and 108.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,207 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.11 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,209 INFO L168 Benchmark]: Boogie Preprocessor took 117.41 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,210 INFO L168 Benchmark]: RCFGBuilder took 199.91 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 171.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,211 INFO L168 Benchmark]: TraceAbstraction took 1265.50 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 108.4 MB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:35:10,216 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.11 ms. Allocated memory is still 145.8 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.41 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 199.91 ms. Allocated memory is still 202.9 MB. Free memory was 181.8 MB in the beginning and 171.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1265.50 ms. Allocated memory is still 202.9 MB. Free memory was 170.9 MB in the beginning and 108.4 MB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 9 SDslu, 45 SDs, 0 SdLazy, 33 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 15 HoareAnnotationTreeSize, 10 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 16/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...