/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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:27:52,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:27:52,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:27:52,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 04:27:52,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 04:27:52,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 04:27:52,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 04:27:52,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 04:27:52,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 04:27:52,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 04:27:52,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 04:27:52,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 04:27:52,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:27:52,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:27:52,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:27:52,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:27:52,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:27:52,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:27:52,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:27:52,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:27:52,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:27:52,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:27:52,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:27:52,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:27:52,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:27:52,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 04:27:52,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 04:27:52,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 04:27:52,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 04:27:52,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 04:27:52,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 04:27:52,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 04:27:52,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 04:27:52,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:27:52,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:27:52,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:27:52,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:27:52,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:27:52,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:27:52,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:27:52,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:27:52,930 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:27:52,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:27:52,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:27:52,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:27:52,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:27:52,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:27:52,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:27:52,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:27:52,932 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:27:52,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:27:52,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:27:52,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:27:52,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:27:52,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:27:52,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:27:52,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:27:52,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:27:52,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:27:52,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:27:52,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:27:52,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:27:52,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:27:53,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:27:53,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:27:53,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:27:53,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:27:53,355 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:27:53,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-22 04:27:53,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b065d74d/5731b83a979b4dd5b3c3a0bfb545847a/FLAGf10a60a1d [2020-12-22 04:27:54,031 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:27:54,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-22 04:27:54,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b065d74d/5731b83a979b4dd5b3c3a0bfb545847a/FLAGf10a60a1d [2020-12-22 04:27:54,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b065d74d/5731b83a979b4dd5b3c3a0bfb545847a [2020-12-22 04:27:54,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:27:54,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:27:54,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:27:54,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:27:54,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:27:54,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f3f44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54, skipping insertion in model container [2020-12-22 04:27:54,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:27:54,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:27:54,621 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2020-12-22 04:27:54,631 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2020-12-22 04:27:54,636 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2020-12-22 04:27:54,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:27:54,653 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:27:54,672 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1126,1139] [2020-12-22 04:27:54,677 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[1880,1893] [2020-12-22 04:27:54,680 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/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c[2415,2428] [2020-12-22 04:27:54,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:27:54,700 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:27:54,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54 WrapperNode [2020-12-22 04:27:54,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:27:54,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:27:54,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:27:54,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:27:54,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:27:54,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:27:54,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:27:54,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:27:54,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (1/1) ... [2020-12-22 04:27:54,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:27:54,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:27:54,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:27:54,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:27:54,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (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 04:27:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:27:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:27:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:27:54,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:27:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 04:27:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 04:27:55,299 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:27:55,299 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 04:27:55,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:55 BoogieIcfgContainer [2020-12-22 04:27:55,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:27:55,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:27:55,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:27:55,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:27:55,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:27:54" (1/3) ... [2020-12-22 04:27:55,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306be2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:27:55, skipping insertion in model container [2020-12-22 04:27:55,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:54" (2/3) ... [2020-12-22 04:27:55,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306be2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:27:55, skipping insertion in model container [2020-12-22 04:27:55,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:55" (3/3) ... [2020-12-22 04:27:55,327 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2020-12-22 04:27:55,345 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:27:55,356 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 04:27:55,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 04:27:55,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:27:55,473 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:27:55,473 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:27:55,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:27:55,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:27:55,474 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:27:55,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:27:55,477 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:27:55,510 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-12-22 04:27:55,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 04:27:55,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:55,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:55,520 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:55,527 INFO L82 PathProgramCache]: Analyzing trace with hash -551124073, now seen corresponding path program 1 times [2020-12-22 04:27:55,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:55,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087131563] [2020-12-22 04:27:55,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:55,860 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 04:27:55,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087131563] [2020-12-22 04:27:55,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:55,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:55,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926525488] [2020-12-22 04:27:55,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:55,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:55,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:55,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:55,895 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-12-22 04:27:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:55,967 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2020-12-22 04:27:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:55,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 04:27:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:55,986 INFO L225 Difference]: With dead ends: 46 [2020-12-22 04:27:55,987 INFO L226 Difference]: Without dead ends: 29 [2020-12-22 04:27:55,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-22 04:27:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-12-22 04:27:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-22 04:27:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-12-22 04:27:56,028 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 9 [2020-12-22 04:27:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:56,029 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-12-22 04:27:56,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-12-22 04:27:56,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 04:27:56,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:56,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:56,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:27:56,031 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:56,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2085816175, now seen corresponding path program 1 times [2020-12-22 04:27:56,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:56,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029571915] [2020-12-22 04:27:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:56,074 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 04:27:56,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029571915] [2020-12-22 04:27:56,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:56,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:56,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416276729] [2020-12-22 04:27:56,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:56,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:56,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:56,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:56,078 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 3 states. [2020-12-22 04:27:56,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:56,131 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2020-12-22 04:27:56,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:56,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 04:27:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:56,133 INFO L225 Difference]: With dead ends: 54 [2020-12-22 04:27:56,133 INFO L226 Difference]: Without dead ends: 34 [2020-12-22 04:27:56,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-22 04:27:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2020-12-22 04:27:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-22 04:27:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-22 04:27:56,141 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 10 [2020-12-22 04:27:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:56,141 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-22 04:27:56,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-22 04:27:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 04:27:56,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:56,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:56,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:27:56,143 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:56,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:56,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2020-12-22 04:27:56,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:56,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705702308] [2020-12-22 04:27:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:56,200 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 04:27:56,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705702308] [2020-12-22 04:27:56,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:56,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:27:56,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750779016] [2020-12-22 04:27:56,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:27:56,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:56,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:27:56,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:27:56,203 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 4 states. [2020-12-22 04:27:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:56,248 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2020-12-22 04:27:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:27:56,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 04:27:56,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:56,250 INFO L225 Difference]: With dead ends: 47 [2020-12-22 04:27:56,250 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 04:27:56,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 04:27:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 04:27:56,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 29. [2020-12-22 04:27:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-22 04:27:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-22 04:27:56,258 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 10 [2020-12-22 04:27:56,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:56,259 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-22 04:27:56,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:27:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-22 04:27:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 04:27:56,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:56,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:56,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 04:27:56,260 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:56,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:56,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1997962921, now seen corresponding path program 1 times [2020-12-22 04:27:56,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:56,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757905574] [2020-12-22 04:27:56,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:56,299 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 04:27:56,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757905574] [2020-12-22 04:27:56,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:56,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:56,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340450747] [2020-12-22 04:27:56,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:56,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:56,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:56,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:56,302 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-12-22 04:27:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:56,343 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-12-22 04:27:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:56,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-22 04:27:56,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:56,345 INFO L225 Difference]: With dead ends: 50 [2020-12-22 04:27:56,346 INFO L226 Difference]: Without dead ends: 30 [2020-12-22 04:27:56,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-22 04:27:56,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-12-22 04:27:56,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-22 04:27:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-12-22 04:27:56,351 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2020-12-22 04:27:56,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:56,352 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-12-22 04:27:56,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-12-22 04:27:56,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 04:27:56,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:56,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:56,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:27:56,353 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:56,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:56,354 INFO L82 PathProgramCache]: Analyzing trace with hash 588886092, now seen corresponding path program 1 times [2020-12-22 04:27:56,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:56,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097605552] [2020-12-22 04:27:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:56,923 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 04:27:56,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097605552] [2020-12-22 04:27:56,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:56,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 04:27:56,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674328046] [2020-12-22 04:27:56,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:27:56,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:56,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:27:56,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:27:56,927 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 7 states. [2020-12-22 04:27:57,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:57,201 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-12-22 04:27:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 04:27:57,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-22 04:27:57,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:57,203 INFO L225 Difference]: With dead ends: 40 [2020-12-22 04:27:57,203 INFO L226 Difference]: Without dead ends: 25 [2020-12-22 04:27:57,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:27:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-22 04:27:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-12-22 04:27:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-22 04:27:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-12-22 04:27:57,210 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2020-12-22 04:27:57,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:57,211 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-12-22 04:27:57,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:27:57,211 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-12-22 04:27:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 04:27:57,212 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:57,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:57,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 04:27:57,213 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:57,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:57,213 INFO L82 PathProgramCache]: Analyzing trace with hash 394194232, now seen corresponding path program 1 times [2020-12-22 04:27:57,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:57,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105687134] [2020-12-22 04:27:57,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:57,278 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 04:27:57,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105687134] [2020-12-22 04:27:57,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:57,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:27:57,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628384650] [2020-12-22 04:27:57,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:27:57,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:57,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:27:57,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:27:57,281 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states. [2020-12-22 04:27:57,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:57,377 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2020-12-22 04:27:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 04:27:57,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 04:27:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:57,379 INFO L225 Difference]: With dead ends: 38 [2020-12-22 04:27:57,380 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 04:27:57,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 04:27:57,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 04:27:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 23. [2020-12-22 04:27:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-22 04:27:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-12-22 04:27:57,387 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 17 [2020-12-22 04:27:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:57,387 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-12-22 04:27:57,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:27:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-22 04:27:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 04:27:57,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:57,389 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:57,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 04:27:57,389 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:57,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1016031163, now seen corresponding path program 1 times [2020-12-22 04:27:57,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:57,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909936002] [2020-12-22 04:27:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:27:57,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909936002] [2020-12-22 04:27:57,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160364579] [2020-12-22 04:27:57,550 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 04:27:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:57,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 04:27:57,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:27:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:27:57,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:27:57,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2020-12-22 04:27:57,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502672555] [2020-12-22 04:27:57,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:27:57,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:57,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:27:57,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:27:57,816 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-12-22 04:27:57,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:57,997 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-22 04:27:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:27:57,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-22 04:27:57,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:57,998 INFO L225 Difference]: With dead ends: 26 [2020-12-22 04:27:57,999 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:27:57,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 04:27:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:27:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:27:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:27:58,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:27:58,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-22 04:27:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:58,001 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:27:58,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:27:58,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:27:58,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:27:58,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 04:27:58,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:27:58,588 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-12-22 04:27:58,682 INFO L189 CegarLoopUtils]: For program point L31(lines 31 147) no Hoare annotation was computed. [2020-12-22 04:27:58,682 INFO L189 CegarLoopUtils]: For program point L60(lines 60 93) no Hoare annotation was computed. [2020-12-22 04:27:58,683 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2020-12-22 04:27:58,683 INFO L185 CegarLoopUtils]: At program point L151(lines 29 152) the Hoare annotation is: false [2020-12-22 04:27:58,683 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-22 04:27:58,683 INFO L189 CegarLoopUtils]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-22 04:27:58,683 INFO L189 CegarLoopUtils]: For program point L40(lines 40 139) no Hoare annotation was computed. [2020-12-22 04:27:58,683 INFO L192 CegarLoopUtils]: At program point L131(lines 98 132) the Hoare annotation is: true [2020-12-22 04:27:58,683 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:27:58,684 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:27:58,684 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:27:58,684 INFO L185 CegarLoopUtils]: At program point L156(lines 26 157) the Hoare annotation is: (or (and (let ((.cse6 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse5 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse1 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse2 (* 4294967296 (div .cse3 4294967296))) (.cse0 (+ .cse3 (* 4294967296 (div .cse1 4294967296))))) (and (< .cse0 (+ .cse1 .cse2 1)) (<= (+ .cse1 .cse2) .cse0))))) (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 .cse6)) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse5))))) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* ULTIMATE.start_main_~main__index1~0 (- 1)) (* (div (+ ULTIMATE.start_main_~main__index1~0 (- 1)) 4294967296) 4294967296) 1) 4294967296)) 99998))) (= ULTIMATE.start_main_~main__loop_entered~0 0)) [2020-12-22 04:27:58,684 INFO L189 CegarLoopUtils]: For program point L57(lines 57 133) no Hoare annotation was computed. [2020-12-22 04:27:58,685 INFO L189 CegarLoopUtils]: For program point L24(lines 24 162) no Hoare annotation was computed. [2020-12-22 04:27:58,685 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-12-22 04:27:58,685 INFO L185 CegarLoopUtils]: At program point L119(lines 99 128) the Hoare annotation is: (let ((.cse6 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse5 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (let ((.cse8 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse5))) (.cse9 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse7 (* 4294967296 .cse6))) (or (and (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse1 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse2 (* 4294967296 (div .cse3 4294967296))) (.cse0 (+ .cse3 (* 4294967296 (div .cse1 4294967296))))) (and (< .cse0 (+ .cse1 .cse2 1)) (<= (+ .cse1 .cse2) .cse0))))) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7) .cse8)) .cse9 (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* ULTIMATE.start_main_~main__index1~0 (- 1)) (* (div (+ ULTIMATE.start_main_~main__index1~0 (- 1)) 4294967296) 4294967296) 1) 4294967296)) 99998))) (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7 1) .cse8) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse9 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse7 99999)))))) [2020-12-22 04:27:58,685 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:27:58,686 INFO L189 CegarLoopUtils]: For program point L62(lines 62 88) no Hoare annotation was computed. [2020-12-22 04:27:58,686 INFO L189 CegarLoopUtils]: For program point L29(lines 29 152) no Hoare annotation was computed. [2020-12-22 04:27:58,686 INFO L185 CegarLoopUtils]: At program point L87(lines 62 88) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)) 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index2~0 (* ULTIMATE.start_main_~main__index1~0 (- 1)) (* (div (+ ULTIMATE.start_main_~main__index1~0 (- 1)) 4294967296) 4294967296) 1) 4294967296)) 99998))) [2020-12-22 04:27:58,686 INFO L189 CegarLoopUtils]: For program point L21(lines 21 167) no Hoare annotation was computed. [2020-12-22 04:27:58,686 INFO L189 CegarLoopUtils]: For program point L50(lines 50 138) no Hoare annotation was computed. [2020-12-22 04:27:58,687 INFO L185 CegarLoopUtils]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse3 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~main__index1~0 .cse3 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))))) (.cse1 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse3 99999)))) (or (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) .cse0 .cse1 .cse2) (and .cse0 (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) .cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0)) .cse2)))) [2020-12-22 04:27:58,687 INFO L189 CegarLoopUtils]: For program point L108(lines 108 120) no Hoare annotation was computed. [2020-12-22 04:27:58,687 INFO L189 CegarLoopUtils]: For program point L42(line 42) no Hoare annotation was computed. [2020-12-22 04:27:58,687 INFO L189 CegarLoopUtils]: For program point L71(lines 71 80) no Hoare annotation was computed. [2020-12-22 04:27:58,687 INFO L192 CegarLoopUtils]: At program point L166(lines 14 168) the Hoare annotation is: true [2020-12-22 04:27:58,687 INFO L185 CegarLoopUtils]: At program point L92(lines 60 93) the Hoare annotation is: false [2020-12-22 04:27:58,687 INFO L189 CegarLoopUtils]: For program point L26(lines 26 157) no Hoare annotation was computed. [2020-12-22 04:27:58,688 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2020-12-22 04:27:58,688 INFO L185 CegarLoopUtils]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~main__loop_entered~0 0) (<= ULTIMATE.start_main_~main__index2~0 (+ .cse0 99999)))) [2020-12-22 04:27:58,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:27:58 BoogieIcfgContainer [2020-12-22 04:27:58,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:27:58,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:27:58,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:27:58,716 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:27:58,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:55" (3/4) ... [2020-12-22 04:27:58,720 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:27:58,733 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-22 04:27:58,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:27:58,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:27:58,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:27:58,797 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c-witness.graphml [2020-12-22 04:27:58,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:27:58,798 INFO L168 Benchmark]: Toolchain (without parser) took 4389.95 ms. Allocated memory was 169.9 MB in the beginning and 204.5 MB in the end (delta: 34.6 MB). Free memory was 144.3 MB in the beginning and 76.3 MB in the end (delta: 68.0 MB). Peak memory consumption was 104.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,799 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 169.9 MB. Free memory is still 141.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:27:58,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.88 ms. Allocated memory is still 169.9 MB. Free memory was 144.2 MB in the beginning and 133.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 169.9 MB. Free memory was 133.1 MB in the beginning and 131.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,800 INFO L168 Benchmark]: Boogie Preprocessor took 25.70 ms. Allocated memory is still 169.9 MB. Free memory was 131.5 MB in the beginning and 130.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,801 INFO L168 Benchmark]: RCFGBuilder took 533.79 ms. Allocated memory is still 169.9 MB. Free memory was 130.3 MB in the beginning and 148.8 MB in the end (delta: -18.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,802 INFO L168 Benchmark]: TraceAbstraction took 3405.50 ms. Allocated memory was 169.9 MB in the beginning and 204.5 MB in the end (delta: 34.6 MB). Free memory was 148.3 MB in the beginning and 80.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 102.9 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,802 INFO L168 Benchmark]: Witness Printer took 80.86 ms. Allocated memory is still 204.5 MB. Free memory was 80.5 MB in the beginning and 76.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:58,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 169.9 MB. Free memory is still 141.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 287.88 ms. Allocated memory is still 169.9 MB. Free memory was 144.2 MB in the beginning and 133.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 169.9 MB. Free memory was 133.1 MB in the beginning and 131.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.70 ms. Allocated memory is still 169.9 MB. Free memory was 131.5 MB in the beginning and 130.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 533.79 ms. Allocated memory is still 169.9 MB. Free memory was 130.3 MB in the beginning and 148.8 MB in the end (delta: -18.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3405.50 ms. Allocated memory was 169.9 MB in the beginning and 204.5 MB in the end (delta: 34.6 MB). Free memory was 148.3 MB in the beginning and 80.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 102.9 MB. Max. memory is 8.0 GB. * Witness Printer took 80.86 ms. Allocated memory is still 204.5 MB. Free memory was 80.5 MB in the beginning and 76.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 110]: 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 3 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) || ((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + 1 && unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296)) || main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * ((main__index2 + main__index1 * -1 + (main__index1 + -1) / 4294967296 * 4294967296 + 1) / 4294967296) + 99998) || main__loop_entered == 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) < unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) + 1 && unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296)) || main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * ((main__index2 + main__index1 * -1 + (main__index1 + -1) / 4294967296 * 4294967296 + 1) / 4294967296) + 99998) || (((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((!(main____CPAchecker_TMP_0 == 0) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * ((main__index2 + main__index1 * -1 + (main__index1 + -1) / 4294967296 * 4294967296 + 1) / 4294967296) + 99998 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && main__loop_entered == 0) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 163 SDslu, 188 SDs, 0 SdLazy, 145 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 32 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 7 MinimizatonAttempts, 44 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 21 NumberOfFragments, 543 HoareAnnotationTreeSize, 9 FomulaSimplifications, 466 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 19169 SizeOfPredicates, 2 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/4 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...