/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/bitvector/jain_7-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:13:06,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:13:06,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:13:06,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:13:06,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:13:06,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:13:06,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:13:06,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:13:06,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:13:06,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:13:06,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:13:06,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:13:06,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:13:06,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:13:06,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:13:06,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:13:06,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:13:06,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:13:06,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:13:06,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:13:06,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:13:06,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:13:06,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:13:06,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:13:06,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:13:06,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:13:06,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:13:06,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:13:06,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:13:06,952 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:13:06,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:13:06,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:13:06,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:13:06,955 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:13:06,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:13:06,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:13:06,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:13:06,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:13:06,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:13:06,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:13:06,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:13:06,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:13:06,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:13:06,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:13:06,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:13:06,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:13:06,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:13:06,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:13:06,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:13:06,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:13:06,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:13:06,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:13:06,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:13:06,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:13:06,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:13:07,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:13:07,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:13:07,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:13:07,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:13:07,391 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:13:07,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_7-2.c [2020-12-21 23:13:07,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaae32fd9/38b036b7b1c6496cb9a560e17914b169/FLAGe891e0974 [2020-12-21 23:13:08,151 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:13:08,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c [2020-12-21 23:13:08,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaae32fd9/38b036b7b1c6496cb9a560e17914b169/FLAGe891e0974 [2020-12-21 23:13:08,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaae32fd9/38b036b7b1c6496cb9a560e17914b169 [2020-12-21 23:13:08,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:13:08,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:13:08,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:13:08,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:13:08,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:13:08,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9db6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08, skipping insertion in model container [2020-12-21 23:13:08,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:13:08,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:13:08,754 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c[370,383] [2020-12-21 23:13:08,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:13:08,781 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:13:08,797 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_7-2.c[370,383] [2020-12-21 23:13:08,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:13:08,820 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:13:08,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08 WrapperNode [2020-12-21 23:13:08,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:13:08,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:13:08,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:13:08,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:13:08,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:13:08,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:13:08,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:13:08,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:13:08,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (1/1) ... [2020-12-21 23:13:08,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:13:08,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:13:08,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:13:08,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:13:08,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (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 [2020-12-21 23:13:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:13:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:13:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:13:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:13:09,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:13:09,294 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:13:09,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:13:09 BoogieIcfgContainer [2020-12-21 23:13:09,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:13:09,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:13:09,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:13:09,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:13:09,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:13:08" (1/3) ... [2020-12-21 23:13:09,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c09dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:13:09, skipping insertion in model container [2020-12-21 23:13:09,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:13:08" (2/3) ... [2020-12-21 23:13:09,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c09dd23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:13:09, skipping insertion in model container [2020-12-21 23:13:09,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:13:09" (3/3) ... [2020-12-21 23:13:09,309 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_7-2.c [2020-12-21 23:13:09,317 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:13:09,323 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:13:09,348 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:13:09,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:13:09,461 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:13:09,462 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:13:09,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:13:09,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:13:09,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:13:09,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:13:09,462 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:13:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-21 23:13:09,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-21 23:13:09,486 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:13:09,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-21 23:13:09,488 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:13:09,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:13:09,497 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-12-21 23:13:09,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:13:09,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436340653] [2020-12-21 23:13:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:13:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:13:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:13:09,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436340653] [2020-12-21 23:13:09,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:13:09,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:13:09,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913494121] [2020-12-21 23:13:09,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:13:09,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:13:09,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:13:09,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:13:09,953 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-21 23:13:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:13:09,992 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2020-12-21 23:13:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:13:09,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-21 23:13:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:13:10,003 INFO L225 Difference]: With dead ends: 16 [2020-12-21 23:13:10,003 INFO L226 Difference]: Without dead ends: 8 [2020-12-21 23:13:10,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:13:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-21 23:13:10,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-21 23:13:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-21 23:13:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-21 23:13:10,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-12-21 23:13:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:13:10,044 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-21 23:13:10,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:13:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-21 23:13:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-21 23:13:10,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:13:10,045 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-21 23:13:10,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:13:10,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:13:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:13:10,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2020-12-21 23:13:10,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:13:10,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480449072] [2020-12-21 23:13:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:13:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:13:10,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:13:10,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480449072] [2020-12-21 23:13:10,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13870855] [2020-12-21 23:13:10,169 INFO L95 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 [2020-12-21 23:13:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:13:10,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-21 23:13:10,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:13:12,504 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-21 23:13:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:13:12,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 23:13:12,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-12-21 23:13:12,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941573178] [2020-12-21 23:13:12,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:13:12,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:13:12,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:13:12,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2020-12-21 23:13:12,592 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2020-12-21 23:13:20,659 WARN L197 SmtUtils]: Spent 8.04 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-21 23:13:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:13:22,230 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-12-21 23:13:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:13:22,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2020-12-21 23:13:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:13:22,233 INFO L225 Difference]: With dead ends: 8 [2020-12-21 23:13:22,233 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:13:22,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=20, Invalid=35, Unknown=1, NotChecked=0, Total=56 [2020-12-21 23:13:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:13:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:13:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:13:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:13:22,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-21 23:13:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:13:22,236 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:13:22,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:13:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:13:22,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:13:22,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-21 23:13:22,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:13:38,588 WARN L197 SmtUtils]: Spent 16.13 s on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-21 23:13:38,598 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:13:38,599 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-21 23:13:38,599 INFO L185 CegarLoopUtils]: At program point L7-2(lines 6 27) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0) (= ULTIMATE.start_main_~z~0 0)) (and (= (mod (* ULTIMATE.start_main_~z~0 4194303) (- 4194304)) 0) (= (mod (* ULTIMATE.start_main_~y~0 2097151) (- 2097152)) 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (mod (* ULTIMATE.start_main_~x~0 1048575) (- 1048576)) 0) (<= (+ ULTIMATE.start_main_~z~0 (* 4 ULTIMATE.start_main_~x~0)) (+ (* 4194304 (div (+ ULTIMATE.start_main_~z~0 (* ULTIMATE.start_main_~x~0 4) (* ULTIMATE.start_main_~y~0 (- 2))) 4194304)) (* 2 ULTIMATE.start_main_~y~0))))) [2020-12-21 23:13:38,599 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:13:38,599 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:13:38,600 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:13:38,600 INFO L185 CegarLoopUtils]: At program point L28(lines 12 29) the Hoare annotation is: false [2020-12-21 23:13:38,600 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-21 23:13:38,600 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 27) no Hoare annotation was computed. [2020-12-21 23:13:38,600 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-21 23:13:38,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:13:38 BoogieIcfgContainer [2020-12-21 23:13:38,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:13:38,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:13:38,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:13:38,622 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:13:38,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:13:09" (3/4) ... [2020-12-21 23:13:38,627 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:13:38,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:13:38,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:13:38,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:13:38,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:13:38,684 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector/jain_7-2.c-witness.graphml [2020-12-21 23:13:38,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:13:38,686 INFO L168 Benchmark]: Toolchain (without parser) took 30185.38 ms. Allocated memory is still 166.7 MB. Free memory was 142.6 MB in the beginning and 88.1 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,686 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 166.7 MB. Free memory is still 139.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:13:38,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.70 ms. Allocated memory is still 166.7 MB. Free memory was 142.5 MB in the beginning and 133.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 166.7 MB. Free memory was 133.2 MB in the beginning and 131.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,689 INFO L168 Benchmark]: Boogie Preprocessor took 29.49 ms. Allocated memory is still 166.7 MB. Free memory was 131.7 MB in the beginning and 130.8 MB in the end (delta: 909.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,690 INFO L168 Benchmark]: RCFGBuilder took 401.72 ms. Allocated memory is still 166.7 MB. Free memory was 130.7 MB in the beginning and 119.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,690 INFO L168 Benchmark]: TraceAbstraction took 29320.50 ms. Allocated memory is still 166.7 MB. Free memory was 119.4 MB in the beginning and 90.2 MB in the end (delta: 29.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,691 INFO L168 Benchmark]: Witness Printer took 64.05 ms. Allocated memory is still 166.7 MB. Free memory was 90.2 MB in the beginning and 88.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:13:38,696 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 166.7 MB. Free memory is still 139.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 315.70 ms. Allocated memory is still 166.7 MB. Free memory was 142.5 MB in the beginning and 133.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 166.7 MB. Free memory was 133.2 MB in the beginning and 131.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.49 ms. Allocated memory is still 166.7 MB. Free memory was 131.7 MB in the beginning and 130.8 MB in the end (delta: 909.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 401.72 ms. Allocated memory is still 166.7 MB. Free memory was 130.7 MB in the beginning and 119.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 29320.50 ms. Allocated memory is still 166.7 MB. Free memory was 119.4 MB in the beginning and 90.2 MB in the end (delta: 29.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * Witness Printer took 64.05 ms. Allocated memory is still 166.7 MB. Free memory was 90.2 MB in the beginning and 88.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ((x == 0 && y == 0) && z == 0) || ((((z * 4194303 % -4194304 == 0 && y * 2097151 % -2097152 == 0) && 1 <= cond) && x * 1048575 % -1048576 == 0) && z + 4 * x <= 4194304 * ((z + x * 4 + y * -2) / 4194304) + 2 * y) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 59 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 16.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 778 SizeOfPredicates, 4 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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...