/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/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:44:55,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:44:55,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:44:55,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 04:44:55,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:44:55,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:44:55,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:44:55,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:44:55,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:44:55,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:44:55,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:44:55,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:44:55,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:44:55,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:44:55,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:44:55,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:44:55,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:44:55,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:44:55,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:44:55,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:44:55,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:44:55,242 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:44:55,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:44:55,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:44:55,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:44:55,244 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:44:55,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:44:55,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:44:55,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:44:55,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:44:55,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:44:55,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:44:55,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:44:55,246 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:44:55,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:44:55,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:44:55,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:44:55,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:44:55,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:44:55,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:44:55,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:44:55,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:44:55,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:44:55,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:44:55,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:44:55,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:44:55,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:44:55,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:44:55,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:44:55,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:44:55,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:44:55,707 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:44:55,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-12-22 04:44:55,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656d839f5/53c908a76bc641e885cdc194ba5c6793/FLAGeb4718141 [2020-12-22 04:44:56,456 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:44:56,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-12-22 04:44:56,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656d839f5/53c908a76bc641e885cdc194ba5c6793/FLAGeb4718141 [2020-12-22 04:44:56,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656d839f5/53c908a76bc641e885cdc194ba5c6793 [2020-12-22 04:44:56,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:44:56,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:44:56,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:44:56,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:44:56,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:44:56,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1687b86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56, skipping insertion in model container [2020-12-22 04:44:56,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:44:56,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:44:56,669 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/loops-crafted-1/nested5-1.c[321,334] [2020-12-22 04:44:56,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:44:56,694 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:44:56,707 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/loops-crafted-1/nested5-1.c[321,334] [2020-12-22 04:44:56,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:44:56,728 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:44:56,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56 WrapperNode [2020-12-22 04:44:56,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:44:56,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:44:56,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:44:56,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:44:56,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:44:56,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:44:56,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:44:56,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:44:56,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (1/1) ... [2020-12-22 04:44:56,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:44:56,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:44:56,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:44:56,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:44:56,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (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 [2020-12-22 04:44:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:44:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:44:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:44:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:44:57,251 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:44:57,252 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-22 04:44:57,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:44:57 BoogieIcfgContainer [2020-12-22 04:44:57,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:44:57,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:44:57,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:44:57,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:44:57,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:44:56" (1/3) ... [2020-12-22 04:44:57,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfb941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:44:57, skipping insertion in model container [2020-12-22 04:44:57,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:44:56" (2/3) ... [2020-12-22 04:44:57,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dfb941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:44:57, skipping insertion in model container [2020-12-22 04:44:57,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:44:57" (3/3) ... [2020-12-22 04:44:57,272 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2020-12-22 04:44:57,287 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:44:57,296 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 04:44:57,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 04:44:57,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:44:57,357 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:44:57,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:44:57,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:44:57,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:44:57,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:44:57,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:44:57,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:44:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-22 04:44:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 04:44:57,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:44:57,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:44:57,400 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:44:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:44:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1296464707, now seen corresponding path program 1 times [2020-12-22 04:44:57,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:44:57,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020889776] [2020-12-22 04:44:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:44:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:44:57,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:57,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020889776] [2020-12-22 04:44:57,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:44:57,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:44:57,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839647037] [2020-12-22 04:44:57,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:44:57,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:44:57,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:44:57,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:44:57,796 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-12-22 04:44:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:44:57,843 INFO L93 Difference]: Finished difference Result 51 states and 80 transitions. [2020-12-22 04:44:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:44:57,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 04:44:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:44:57,856 INFO L225 Difference]: With dead ends: 51 [2020-12-22 04:44:57,856 INFO L226 Difference]: Without dead ends: 25 [2020-12-22 04:44:57,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:44:57,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-22 04:44:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-12-22 04:44:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-22 04:44:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-12-22 04:44:57,905 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2020-12-22 04:44:57,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:44:57,905 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-12-22 04:44:57,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:44:57,906 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-12-22 04:44:57,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 04:44:57,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:44:57,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:44:57,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:44:57,907 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:44:57,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:44:57,908 INFO L82 PathProgramCache]: Analyzing trace with hash -308834241, now seen corresponding path program 1 times [2020-12-22 04:44:57,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:44:57,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753574339] [2020-12-22 04:44:57,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:44:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:44:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:58,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753574339] [2020-12-22 04:44:58,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017298743] [2020-12-22 04:44:58,001 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 [2020-12-22 04:44:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:44:58,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 04:44:58,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:44:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:58,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:44:58,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 04:44:58,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763656057] [2020-12-22 04:44:58,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 04:44:58,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:44:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 04:44:58,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:44:58,096 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2020-12-22 04:44:58,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:44:58,128 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2020-12-22 04:44:58,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 04:44:58,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-22 04:44:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:44:58,130 INFO L225 Difference]: With dead ends: 42 [2020-12-22 04:44:58,130 INFO L226 Difference]: Without dead ends: 27 [2020-12-22 04:44:58,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:44:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-22 04:44:58,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2020-12-22 04:44:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-22 04:44:58,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-12-22 04:44:58,137 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2020-12-22 04:44:58,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:44:58,137 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-12-22 04:44:58,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 04:44:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-22 04:44:58,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-22 04:44:58,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:44:58,138 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:44:58,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-22 04:44:58,353 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:44:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:44:58,355 INFO L82 PathProgramCache]: Analyzing trace with hash -383728831, now seen corresponding path program 2 times [2020-12-22 04:44:58,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:44:58,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644408203] [2020-12-22 04:44:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:44:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:44:58,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:58,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644408203] [2020-12-22 04:44:58,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409142374] [2020-12-22 04:44:58,519 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 [2020-12-22 04:44:58,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 04:44:58,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:44:58,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 04:44:58,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:44:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:58,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:44:58,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 04:44:58,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85635537] [2020-12-22 04:44:58,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:44:58,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:44:58,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:44:58,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:44:58,779 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 6 states. [2020-12-22 04:44:58,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:44:58,867 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2020-12-22 04:44:58,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:44:58,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-22 04:44:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:44:58,871 INFO L225 Difference]: With dead ends: 46 [2020-12-22 04:44:58,871 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 04:44:58,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:44:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 04:44:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2020-12-22 04:44:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-22 04:44:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-12-22 04:44:58,886 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-12-22 04:44:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:44:58,886 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-12-22 04:44:58,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:44:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-12-22 04:44:58,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 04:44:58,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:44:58,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:44:59,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:44:59,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:44:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:44:59,107 INFO L82 PathProgramCache]: Analyzing trace with hash 657014211, now seen corresponding path program 3 times [2020-12-22 04:44:59,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:44:59,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963136819] [2020-12-22 04:44:59,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:44:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:44:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:44:59,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963136819] [2020-12-22 04:44:59,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082991954] [2020-12-22 04:44:59,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:44:59,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-22 04:44:59,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:44:59,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 04:44:59,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:44:59,729 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2020-12-22 04:44:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 04:44:59,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 04:44:59,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2020-12-22 04:44:59,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323349999] [2020-12-22 04:44:59,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:44:59,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:44:59,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:44:59,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-22 04:44:59,741 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states. [2020-12-22 04:45:00,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:45:00,286 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-12-22 04:45:00,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 04:45:00,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-22 04:45:00,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:45:00,287 INFO L225 Difference]: With dead ends: 36 [2020-12-22 04:45:00,287 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:45:00,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-12-22 04:45:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:45:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:45:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:45:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:45:00,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-12-22 04:45:00,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:45:00,290 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:45:00,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:45:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:45:00,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:45:00,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:45:00,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:45:00,646 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 04:45:00,765 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 04:45:01,017 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 04:45:01,100 INFO L189 CegarLoopUtils]: For program point L23-2(line 23) no Hoare annotation was computed. [2020-12-22 04:45:01,100 INFO L185 CegarLoopUtils]: At program point L23-3(line 23) the Hoare annotation is: (or (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (= ULTIMATE.start_main_~v~0 0)) [2020-12-22 04:45:01,101 INFO L189 CegarLoopUtils]: For program point L23-4(line 23) no Hoare annotation was computed. [2020-12-22 04:45:01,101 INFO L189 CegarLoopUtils]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2020-12-22 04:45:01,101 INFO L185 CegarLoopUtils]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (and (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 4294967306)) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 1)) (- 4)) (- 1))) 1073741824) 1))))) [2020-12-22 04:45:01,101 INFO L189 CegarLoopUtils]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2020-12-22 04:45:01,102 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2020-12-22 04:45:01,103 INFO L185 CegarLoopUtils]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (and (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 4294967306)) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 1)) (- 4)) (- 1))) 1073741824) 1))))) [2020-12-22 04:45:01,103 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:45:01,103 INFO L189 CegarLoopUtils]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2020-12-22 04:45:01,103 INFO L185 CegarLoopUtils]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (and (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 4294967306)) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 1)) (- 4)) (- 1))) 1073741824) 1))))) [2020-12-22 04:45:01,103 INFO L192 CegarLoopUtils]: At program point L26(lines 12 27) the Hoare annotation is: true [2020-12-22 04:45:01,104 INFO L185 CegarLoopUtils]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (< (mod ULTIMATE.start_main_~v~0 4294967296) 10) (and (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 4294967306)) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 1)) (- 4)) (- 1))) 1073741824) 1))))) [2020-12-22 04:45:01,104 INFO L189 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-22 04:45:01,104 INFO L185 CegarLoopUtils]: At program point L6-2(lines 1 27) the Hoare annotation is: (and (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296)) (< ULTIMATE.start___VERIFIER_assert_~cond 4) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 0 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse0 (* ULTIMATE.start___VERIFIER_assert_~cond (- 1)))) (< (div (+ (div (+ .cse0 10) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 4294967306)) (- 4)) (- 1))) (- 1073741824)) (+ (div (+ (div (+ .cse0 8589934591) 4) (* (div (+ ULTIMATE.start___VERIFIER_assert_~cond (- 1)) (- 4)) (- 1))) 1073741824) 1)))) [2020-12-22 04:45:01,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:45:01 BoogieIcfgContainer [2020-12-22 04:45:01,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:45:01,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:45:01,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:45:01,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:45:01,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:44:57" (3/4) ... [2020-12-22 04:45:01,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:45:01,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-22 04:45:01,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:45:01,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:45:01,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:45:01,193 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops-crafted-1/nested5-1.c-witness.graphml [2020-12-22 04:45:01,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:45:01,195 INFO L168 Benchmark]: Toolchain (without parser) took 4711.63 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 136.3 MB in the beginning and 122.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 47.9 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,196 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:45:01,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.86 ms. Allocated memory is still 160.4 MB. Free memory was 136.0 MB in the beginning and 126.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.10 ms. Allocated memory is still 160.4 MB. Free memory was 126.5 MB in the beginning and 125.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,201 INFO L168 Benchmark]: Boogie Preprocessor took 39.91 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 124.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,202 INFO L168 Benchmark]: RCFGBuilder took 443.90 ms. Allocated memory is still 160.4 MB. Free memory was 123.9 MB in the beginning and 110.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,205 INFO L168 Benchmark]: TraceAbstraction took 3868.94 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 109.9 MB in the beginning and 125.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,205 INFO L168 Benchmark]: Witness Printer took 66.31 ms. Allocated memory is still 192.9 MB. Free memory was 125.3 MB in the beginning and 122.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:45:01,212 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 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 243.86 ms. Allocated memory is still 160.4 MB. Free memory was 136.0 MB in the beginning and 126.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.10 ms. Allocated memory is still 160.4 MB. Free memory was 126.5 MB in the beginning and 125.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.91 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 124.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 443.90 ms. Allocated memory is still 160.4 MB. Free memory was 123.9 MB in the beginning and 110.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3868.94 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 109.9 MB in the beginning and 125.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. * Witness Printer took 66.31 ms. Allocated memory is still 192.9 MB. Free memory was 125.3 MB in the beginning and 122.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (((cond < 4 && (v + 4294967295) % 4294967296 < 10) && 0 <= cond) && ((cond * -1 + 10) / 4 + (cond + -4294967306) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (cond + -1) / -4 * -1) / 1073741824 + 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (((cond < 4 && (v + 4294967295) % 4294967296 < 10) && 0 <= cond) && ((cond * -1 + 10) / 4 + (cond + -4294967306) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (cond + -1) / -4 * -1) / 1073741824 + 1) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (((cond < 4 && (v + 4294967295) % 4294967296 < 10) && 0 <= cond) && ((cond * -1 + 10) / 4 + (cond + -4294967306) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (cond + -1) / -4 * -1) / 1073741824 + 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((10 <= v % 4294967296 && cond < 4) && (v + 4294967295) % 4294967296 < 10) && 0 <= cond) && ((cond * -1 + 10) / 4 + (cond + -4294967306) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (cond + -1) / -4 * -1) / 1073741824 + 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: v % 4294967296 < 10 || (((cond < 4 && (v + 4294967295) % 4294967296 < 10) && 0 <= cond) && ((cond * -1 + 10) / 4 + (cond + -4294967306) / -4 * -1) / -1073741824 < ((cond * -1 + 8589934591) / 4 + (cond + -1) / -4 * -1) / 1073741824 + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 87 SDslu, 149 SDs, 0 SdLazy, 96 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 26 NumberOfFragments, 296 HoareAnnotationTreeSize, 7 FomulaSimplifications, 251 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 94 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3518 SizeOfPredicates, 5 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 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...