/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_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:12:09,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:12:09,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:12:09,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:12:09,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:12:09,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:12:09,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:12:09,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:12:09,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:12:09,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:12:09,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:12:09,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:12:09,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:12:09,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:12:09,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:12:09,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:12:09,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:12:09,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:12:09,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:12:09,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:12:09,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:12:09,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:12:09,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:12:09,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:12:09,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:12:09,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-21 23:12:09,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-21 23:12:09,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-21 23:12:09,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-21 23:12:09,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-21 23:12:09,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-21 23:12:09,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-21 23:12:09,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-21 23:12:09,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:12:09,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:12:09,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:12:09,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:12:09,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:12:09,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:12:09,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:12:09,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:12:09,704 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:12:09,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:12:09,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:12:09,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:12:09,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:12:09,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:12:09,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:12:09,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:12:09,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:12:09,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:12:09,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:12:09,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:12:09,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:12:09,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:12:09,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:12:09,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:12:09,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:12:09,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:12:09,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:12:09,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:12:09,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:12:09,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:12:10,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:12:10,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:12:10,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:12:10,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:12:10,188 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:12:10,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_1-1.c [2020-12-21 23:12:10,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7381cbc/206ae7a1e3a5460ea7b09341b6ef26b7/FLAGc9c977e29 [2020-12-21 23:12:10,848 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:12:10,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_1-1.c [2020-12-21 23:12:10,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7381cbc/206ae7a1e3a5460ea7b09341b6ef26b7/FLAGc9c977e29 [2020-12-21 23:12:11,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7381cbc/206ae7a1e3a5460ea7b09341b6ef26b7 [2020-12-21 23:12:11,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:12:11,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:12:11,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:12:11,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:12:11,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:12:11,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471ba460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11, skipping insertion in model container [2020-12-21 23:12:11,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:12:11,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:12:11,394 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_1-1.c[370,383] [2020-12-21 23:12:11,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:12:11,414 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:12:11,428 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_1-1.c[370,383] [2020-12-21 23:12:11,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:12:11,445 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:12:11,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11 WrapperNode [2020-12-21 23:12:11,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:12:11,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:12:11,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:12:11,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:12:11,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:12:11,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:12:11,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:12:11,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:12:11,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (1/1) ... [2020-12-21 23:12:11,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:12:11,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:12:11,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:12:11,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:12:11,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (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 23:12:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:12:11,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:12:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:12:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:12:11,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:12:11,807 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-21 23:12:11,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:11 BoogieIcfgContainer [2020-12-21 23:12:11,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:12:11,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:12:11,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:12:11,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:12:11,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:12:11" (1/3) ... [2020-12-21 23:12:11,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081e033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:12:11, skipping insertion in model container [2020-12-21 23:12:11,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:12:11" (2/3) ... [2020-12-21 23:12:11,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1081e033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:12:11, skipping insertion in model container [2020-12-21 23:12:11,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:11" (3/3) ... [2020-12-21 23:12:11,818 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_1-1.c [2020-12-21 23:12:11,825 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:12:11,830 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:12:11,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:12:11,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:12:11,932 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:12:11,932 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:12:11,933 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:12:11,933 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:12:11,933 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:12:11,933 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:12:11,933 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:12:11,949 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-21 23:12:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-21 23:12:11,954 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:12:11,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-21 23:12:11,956 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:12:11,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:12:11,964 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-12-21 23:12:11,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:12:11,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867851872] [2020-12-21 23:12:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:12:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:12,326 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 23:12:12,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867851872] [2020-12-21 23:12:12,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:12:12,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:12:12,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429688249] [2020-12-21 23:12:12,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:12:12,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:12:12,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:12:12,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:12:12,352 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-21 23:12:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:12:12,395 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2020-12-21 23:12:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:12:12,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-21 23:12:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:12:12,408 INFO L225 Difference]: With dead ends: 16 [2020-12-21 23:12:12,408 INFO L226 Difference]: Without dead ends: 8 [2020-12-21 23:12:12,411 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 23:12:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-21 23:12:12,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-21 23:12:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-21 23:12:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-21 23:12:12,448 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-12-21 23:12:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:12:12,448 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-21 23:12:12,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:12:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-21 23:12:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-21 23:12:12,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:12:12,449 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-21 23:12:12,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:12:12,450 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:12:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:12:12,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1810804418, now seen corresponding path program 1 times [2020-12-21 23:12:12,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:12:12,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800904141] [2020-12-21 23:12:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:12:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:12,549 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 23:12:12,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800904141] [2020-12-21 23:12:12,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496411587] [2020-12-21 23:12:12,551 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 23:12:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:12:12,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-21 23:12:12,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-21 23:12:12,869 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-21 23:12:12,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-21 23:12:12,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-21 23:12:12,936 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 23:12:12,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-21 23:12:12,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-21 23:12:12,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200382876] [2020-12-21 23:12:12,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:12:12,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:12:12,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:12:12,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:12:12,941 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2020-12-21 23:12:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:12:12,975 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-12-21 23:12:12,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-21 23:12:12,976 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-12-21 23:12:12,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:12:12,976 INFO L225 Difference]: With dead ends: 8 [2020-12-21 23:12:12,976 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:12:12,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:12:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:12:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:12:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:12:12,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:12:12,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-21 23:12:12,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:12:12,979 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:12:12,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:12:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:12:12,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:12:13,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-21 23:12:13,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:12:13,241 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:12:13,241 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-12-21 23:12:13,242 INFO L185 CegarLoopUtils]: At program point L7-2(lines 6 25) the Hoare annotation is: (or (= ULTIMATE.start_main_~y~0 1) (and (<= 1 (+ ULTIMATE.start_main_~y~0 (* 2 (div (+ (* ULTIMATE.start_main_~y~0 (- 1)) 1) 2)))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2020-12-21 23:12:13,242 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:12:13,242 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:12:13,242 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:12:13,242 INFO L185 CegarLoopUtils]: At program point L26(lines 12 27) the Hoare annotation is: false [2020-12-21 23:12:13,242 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-12-21 23:12:13,243 INFO L189 CegarLoopUtils]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2020-12-21 23:12:13,243 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2020-12-21 23:12:13,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:12:13 BoogieIcfgContainer [2020-12-21 23:12:13,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:12:13,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:12:13,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:12:13,260 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:12:13,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:12:11" (3/4) ... [2020-12-21 23:12:13,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:12:13,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-21 23:12:13,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:12:13,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:12:13,276 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:12:13,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/bitvector/jain_1-1.c-witness.graphml [2020-12-21 23:12:13,313 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:12:13,315 INFO L168 Benchmark]: Toolchain (without parser) took 2094.91 ms. Allocated memory is still 158.3 MB. Free memory was 134.0 MB in the beginning and 96.4 MB in the end (delta: 37.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,315 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:12:13,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.56 ms. Allocated memory is still 158.3 MB. Free memory was 133.8 MB in the beginning and 124.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.28 ms. Allocated memory is still 158.3 MB. Free memory was 124.6 MB in the beginning and 123.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,318 INFO L168 Benchmark]: Boogie Preprocessor took 20.76 ms. Allocated memory is still 158.3 MB. Free memory was 123.1 MB in the beginning and 122.3 MB in the end (delta: 854.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,318 INFO L168 Benchmark]: RCFGBuilder took 309.07 ms. Allocated memory is still 158.3 MB. Free memory was 122.3 MB in the beginning and 111.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,319 INFO L168 Benchmark]: TraceAbstraction took 1448.79 ms. Allocated memory is still 158.3 MB. Free memory was 111.2 MB in the beginning and 99.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,320 INFO L168 Benchmark]: Witness Printer took 52.62 ms. Allocated memory is still 158.3 MB. Free memory was 99.0 MB in the beginning and 96.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:12:13,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 158.3 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 224.56 ms. Allocated memory is still 158.3 MB. Free memory was 133.8 MB in the beginning and 124.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.28 ms. Allocated memory is still 158.3 MB. Free memory was 124.6 MB in the beginning and 123.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.76 ms. Allocated memory is still 158.3 MB. Free memory was 123.1 MB in the beginning and 122.3 MB in the end (delta: 854.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 309.07 ms. Allocated memory is still 158.3 MB. Free memory was 122.3 MB in the beginning and 111.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1448.79 ms. Allocated memory is still 158.3 MB. Free memory was 111.2 MB in the beginning and 99.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * Witness Printer took 52.62 ms. Allocated memory is still 158.3 MB. Free memory was 99.0 MB in the beginning and 96.4 MB in the end (delta: 2.6 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: 12]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: y == 1 || (1 <= y + 2 * ((y * -1 + 1) / 2) && 1 <= cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s 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, 22 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 2 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 9 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...