/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_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:12:22,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:12:22,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:12:22,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:12:22,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:12:22,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:12:22,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:12:22,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:12:22,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:12:22,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:12:22,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:12:22,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:12:22,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:12:22,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:12:22,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:12:22,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:12:22,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:12:22,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:12:22,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:12:22,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:12:22,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:12:22,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:12:22,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:12:22,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:12:22,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:12:22,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:12:22,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:12:22,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:12:22,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:12:22,996 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:12:22,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:12:22,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:12:22,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:12:22,999 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:12:22,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:12:22,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:12:22,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:12:23,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:12:23,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:12:23,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:12:23,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:12:23,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:12:23,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:12:23,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:12:23,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:12:23,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:12:23,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:12:23,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:12:23,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:12:23,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:12:23,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:12:23,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:12:23,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:12:23,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:12:23,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:12:23,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:12:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:12:23,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:12:23,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:12:23,469 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:12:23,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_4-2.c [2020-12-21 23:12:23,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43514e689/ccead2bbe5854251a18bfbd11d13c0e4/FLAG6ebb673df [2020-12-21 23:12:24,190 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:12:24,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_4-2.c [2020-12-21 23:12:24,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43514e689/ccead2bbe5854251a18bfbd11d13c0e4/FLAG6ebb673df [2020-12-21 23:12:24,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43514e689/ccead2bbe5854251a18bfbd11d13c0e4 [2020-12-21 23:12:24,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:12:24,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:12:24,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:12:24,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:12:24,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:12:24,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad61345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24, skipping insertion in model container [2020-12-21 23:12:24,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:12:24,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:12:24,735 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_4-2.c[370,383] [2020-12-21 23:12:24,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:12:24,760 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:12:24,774 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_4-2.c[370,383] [2020-12-21 23:12:24,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:12:24,794 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:12:24,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24 WrapperNode [2020-12-21 23:12:24,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:12:24,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:12:24,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:12:24,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:12:24,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:12:24,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:12:24,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:12:24,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:12:24,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (1/1) ... [2020-12-21 23:12:24,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:12:24,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:12:24,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:12:24,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:12:24,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (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 23:12:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:12:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:12:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:12:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:12:25,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:12:25,200 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:12:25,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:25 BoogieIcfgContainer [2020-12-21 23:12:25,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:12:25,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:12:25,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:12:25,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:12:25,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:12:24" (1/3) ... [2020-12-21 23:12:25,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624a3a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:12:25, skipping insertion in model container [2020-12-21 23:12:25,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:24" (2/3) ... [2020-12-21 23:12:25,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624a3a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:12:25, skipping insertion in model container [2020-12-21 23:12:25,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:25" (3/3) ... [2020-12-21 23:12:25,212 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_4-2.c [2020-12-21 23:12:25,223 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:12:25,228 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:12:25,298 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:12:25,376 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:12:25,376 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:12:25,376 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:12:25,376 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:12:25,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:12:25,377 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:12:25,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:12:25,377 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:12:25,390 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-21 23:12:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-21 23:12:25,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:12:25,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-21 23:12:25,397 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:12:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:12:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-12-21 23:12:25,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:12:25,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289661974] [2020-12-21 23:12:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:12:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:25,748 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 23:12:25,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289661974] [2020-12-21 23:12:25,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:12:25,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:12:25,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003758733] [2020-12-21 23:12:25,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:12:25,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:12:25,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:12:25,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:12:25,778 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-21 23:12:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:12:25,871 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2020-12-21 23:12:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:12:25,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-21 23:12:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:12:25,883 INFO L225 Difference]: With dead ends: 16 [2020-12-21 23:12:25,890 INFO L226 Difference]: Without dead ends: 8 [2020-12-21 23:12:25,897 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 23:12:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-21 23:12:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-21 23:12:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-21 23:12:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-21 23:12:25,943 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-12-21 23:12:25,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:12:25,943 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-21 23:12:25,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:12:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-21 23:12:25,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-21 23:12:25,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:12:25,945 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-21 23:12:25,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:12:25,947 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:12:25,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:12:25,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2020-12-21 23:12:25,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:12:25,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661719938] [2020-12-21 23:12:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:12:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:26,134 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 23:12:26,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661719938] [2020-12-21 23:12:26,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537454006] [2020-12-21 23:12:26,135 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 23:12:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:26,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-21 23:12:26,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:12:27,193 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-21 23:12:27,258 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 23:12:27,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 23:12:27,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-12-21 23:12:27,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883076284] [2020-12-21 23:12:27,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:12:27,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:12:27,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:12:27,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:12:27,263 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2020-12-21 23:12:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:12:29,355 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-12-21 23:12:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-21 23:12:29,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2020-12-21 23:12:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:12:29,357 INFO L225 Difference]: With dead ends: 13 [2020-12-21 23:12:29,357 INFO L226 Difference]: Without dead ends: 11 [2020-12-21 23:12:29,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:12:29,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-21 23:12:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-21 23:12:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-21 23:12:29,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-21 23:12:29,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2020-12-21 23:12:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:12:29,363 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-21 23:12:29,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:12:29,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-21 23:12:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-21 23:12:29,364 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:12:29,364 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-12-21 23:12:29,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-21 23:12:29,578 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:12:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:12:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash 721435418, now seen corresponding path program 2 times [2020-12-21 23:12:29,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:12:29,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884789036] [2020-12-21 23:12:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:12:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-21 23:12:29,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884789036] [2020-12-21 23:12:29,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131937515] [2020-12-21 23:12:29,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/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 [2020-12-21 23:12:29,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-21 23:12:29,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-21 23:12:29,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-21 23:12:29,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:12:30,434 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-21 23:12:30,459 INFO L757 QuantifierPusher]: Run 20 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-21 23:12:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-21 23:12:30,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 23:12:30,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-12-21 23:12:30,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980658949] [2020-12-21 23:12:30,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-21 23:12:30,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:12:30,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-21 23:12:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:12:30,508 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2020-12-21 23:12:30,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:12:30,543 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-12-21 23:12:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:12:30,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-12-21 23:12:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:12:30,546 INFO L225 Difference]: With dead ends: 10 [2020-12-21 23:12:30,546 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:12:30,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:12:30,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:12:30,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:12:30,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:12:30,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:12:30,552 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-12-21 23:12:30,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:12:30,552 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:12:30,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-21 23:12:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:12:30,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:12:30,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-21 23:12:30,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:12:30,845 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:12:30,846 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-21 23:12:30,846 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 7) (- 8)) 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (mod (* ULTIMATE.start_main_~x~0 3) (- 4)) 0) (= (mod (* ULTIMATE.start_main_~y~0 3) (- 4)) 0))) [2020-12-21 23:12:30,846 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:12:30,846 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:12:30,847 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:12:30,847 INFO L185 CegarLoopUtils]: At program point L28(lines 12 29) the Hoare annotation is: false [2020-12-21 23:12:30,847 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-21 23:12:30,847 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 27) no Hoare annotation was computed. [2020-12-21 23:12:30,847 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-21 23:12:30,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:12:30 BoogieIcfgContainer [2020-12-21 23:12:30,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:12:30,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:12:30,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:12:30,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:12:30,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:25" (3/4) ... [2020-12-21 23:12:30,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:12:30,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:12:30,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:12:30,890 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:12:30,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:12:30,995 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector/jain_4-2.c-witness.graphml [2020-12-21 23:12:30,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:12:30,998 INFO L168 Benchmark]: Toolchain (without parser) took 6449.84 ms. Allocated memory is still 164.6 MB. Free memory was 140.0 MB in the beginning and 146.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 88.6 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:30,999 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 92.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:12:31,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.39 ms. Allocated memory is still 164.6 MB. Free memory was 139.8 MB in the beginning and 130.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.74 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,005 INFO L168 Benchmark]: Boogie Preprocessor took 23.60 ms. Allocated memory is still 164.6 MB. Free memory was 129.1 MB in the beginning and 128.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,009 INFO L168 Benchmark]: RCFGBuilder took 343.05 ms. Allocated memory is still 164.6 MB. Free memory was 128.1 MB in the beginning and 117.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,010 INFO L168 Benchmark]: TraceAbstraction took 5664.97 ms. Allocated memory is still 164.6 MB. Free memory was 116.7 MB in the beginning and 55.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 60.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,011 INFO L168 Benchmark]: Witness Printer took 125.63 ms. Allocated memory is still 164.6 MB. Free memory was 55.5 MB in the beginning and 146.3 MB in the end (delta: -90.8 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:31,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory was 136.8 MB in the beginning and 136.7 MB in the end (delta: 92.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 243.39 ms. Allocated memory is still 164.6 MB. Free memory was 139.8 MB in the beginning and 130.5 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 37.74 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.60 ms. Allocated memory is still 164.6 MB. Free memory was 129.1 MB in the beginning and 128.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 343.05 ms. Allocated memory is still 164.6 MB. Free memory was 128.1 MB in the beginning and 117.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5664.97 ms. Allocated memory is still 164.6 MB. Free memory was 116.7 MB in the beginning and 55.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 60.4 MB. Max. memory is 8.0 GB. * Witness Printer took 125.63 ms. Allocated memory is still 164.6 MB. Free memory was 55.5 MB in the beginning and 146.3 MB in the end (delta: -90.8 MB). Peak memory consumption was 4.1 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 * 7 % -8 == 0 && 1 == cond) && x * 3 % -4 == 0) && y * 3 % -4 == 0) - 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: 5.3s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 22 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 37 HoareAnnotationTreeSize, 2 FomulaSimplifications, 41 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 2062 SizeOfPredicates, 10 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 3/16 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...