/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+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:27:43,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:27:43,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:27:43,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 04:27:43,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:27:43,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:27:43,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:27:43,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:27:43,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:27:43,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:27:43,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:27:43,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:27:43,864 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:27:43,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:27:43,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:27:43,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:27:43,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:27:43,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:27:43,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:27:43,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:27:43,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:27:43,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:27:43,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:27:43,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:27:43,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:27:43,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:27:43,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:27:43,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:27:43,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:27:43,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:27:43,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:27:43,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:27:43,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:27:43,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:27:44,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:27:44,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:27:44,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:27:44,338 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:27:44,339 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:27:44,340 INFO L432 ainManager$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+lhb-reducer.c [2020-12-22 04:27:44,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf75704c/673fd09b5c724ae98a406ee64caacd6a/FLAG41946179f [2020-12-22 04:27:45,033 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:27:45,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2020-12-22 04:27:45,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf75704c/673fd09b5c724ae98a406ee64caacd6a/FLAG41946179f [2020-12-22 04:27:45,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bf75704c/673fd09b5c724ae98a406ee64caacd6a [2020-12-22 04:27:45,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:27:45,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:27:45,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:27:45,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:27:45,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:27:45,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34dfcebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45, skipping insertion in model container [2020-12-22 04:27:45,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:27:45,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:27:45,616 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+lhb-reducer.c[1126,1139] [2020-12-22 04:27:45,627 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+lhb-reducer.c[1880,1893] [2020-12-22 04:27:45,631 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+lhb-reducer.c[2401,2414] [2020-12-22 04:27:45,637 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+lhb-reducer.c[3193,3206] [2020-12-22 04:27:45,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:27:45,650 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:27:45,686 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+lhb-reducer.c[1126,1139] [2020-12-22 04:27:45,700 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+lhb-reducer.c[1880,1893] [2020-12-22 04:27:45,706 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+lhb-reducer.c[2401,2414] [2020-12-22 04:27:45,719 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+lhb-reducer.c[3193,3206] [2020-12-22 04:27:45,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:27:45,755 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:27:45,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45 WrapperNode [2020-12-22 04:27:45,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:27:45,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:27:45,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:27:45,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:27:45,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:27:45,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:27:45,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:27:45,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:27:45,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (1/1) ... [2020-12-22 04:27:45,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:27:45,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:27:45,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:27:45,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:27:45,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (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 04:27:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:27:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:27:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:27:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:27:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 04:27:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 04:27:46,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:27:46,539 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 04:27:46,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:46 BoogieIcfgContainer [2020-12-22 04:27:46,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:27:46,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:27:46,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:27:46,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:27:46,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:27:45" (1/3) ... [2020-12-22 04:27:46,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbfb6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:27:46, skipping insertion in model container [2020-12-22 04:27:46,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:27:45" (2/3) ... [2020-12-22 04:27:46,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbfb6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:27:46, skipping insertion in model container [2020-12-22 04:27:46,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:46" (3/3) ... [2020-12-22 04:27:46,550 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2020-12-22 04:27:46,557 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:27:46,562 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 04:27:46,582 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 04:27:46,610 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:27:46,610 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:27:46,610 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:27:46,610 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:27:46,610 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:27:46,611 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:27:46,611 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:27:46,611 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:27:46,627 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-22 04:27:46,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 04:27:46,633 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:46,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:46,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:46,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:46,642 INFO L82 PathProgramCache]: Analyzing trace with hash -549247241, now seen corresponding path program 1 times [2020-12-22 04:27:46,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:46,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451195359] [2020-12-22 04:27:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:46,862 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 04:27:46,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451195359] [2020-12-22 04:27:46,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:46,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:46,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475332776] [2020-12-22 04:27:46,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:46,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:46,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:46,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:46,888 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-12-22 04:27:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:46,925 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2020-12-22 04:27:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:46,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 04:27:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:46,938 INFO L225 Difference]: With dead ends: 51 [2020-12-22 04:27:46,938 INFO L226 Difference]: Without dead ends: 30 [2020-12-22 04:27:46,941 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 04:27:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-22 04:27:46,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-12-22 04:27:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-22 04:27:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-12-22 04:27:46,979 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 9 [2020-12-22 04:27:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:46,980 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-22 04:27:46,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2020-12-22 04:27:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 04:27:46,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:46,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:46,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:27:46,982 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:46,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2084862863, now seen corresponding path program 1 times [2020-12-22 04:27:46,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:46,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269137149] [2020-12-22 04:27:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:47,029 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 04:27:47,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269137149] [2020-12-22 04:27:47,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:47,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:47,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460556270] [2020-12-22 04:27:47,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:47,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:47,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:47,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:47,033 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2020-12-22 04:27:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:47,087 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2020-12-22 04:27:47,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:47,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 04:27:47,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:47,090 INFO L225 Difference]: With dead ends: 56 [2020-12-22 04:27:47,090 INFO L226 Difference]: Without dead ends: 35 [2020-12-22 04:27:47,091 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 04:27:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-22 04:27:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2020-12-22 04:27:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-22 04:27:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-12-22 04:27:47,098 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 10 [2020-12-22 04:27:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:47,098 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-12-22 04:27:47,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-12-22 04:27:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 04:27:47,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:47,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:47,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:27:47,100 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:47,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2140661612, now seen corresponding path program 1 times [2020-12-22 04:27:47,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:47,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553395649] [2020-12-22 04:27:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:47,156 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 04:27:47,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553395649] [2020-12-22 04:27:47,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:47,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 04:27:47,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628432480] [2020-12-22 04:27:47,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 04:27:47,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:47,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 04:27:47,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 04:27:47,159 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 4 states. [2020-12-22 04:27:47,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:47,215 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-12-22 04:27:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 04:27:47,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-22 04:27:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:47,217 INFO L225 Difference]: With dead ends: 49 [2020-12-22 04:27:47,218 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 04:27:47,218 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 04:27:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 04:27:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30. [2020-12-22 04:27:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-22 04:27:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-12-22 04:27:47,226 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2020-12-22 04:27:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:47,226 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-12-22 04:27:47,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 04:27:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-12-22 04:27:47,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 04:27:47,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:47,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:47,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 04:27:47,228 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:47,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1998916233, now seen corresponding path program 1 times [2020-12-22 04:27:47,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:47,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067978151] [2020-12-22 04:27:47,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:47,271 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 04:27:47,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067978151] [2020-12-22 04:27:47,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:47,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:27:47,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365251384] [2020-12-22 04:27:47,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:27:47,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:47,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:27:47,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:27:47,274 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 3 states. [2020-12-22 04:27:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:47,327 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-12-22 04:27:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:27:47,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-22 04:27:47,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:47,329 INFO L225 Difference]: With dead ends: 52 [2020-12-22 04:27:47,330 INFO L226 Difference]: Without dead ends: 31 [2020-12-22 04:27:47,330 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 04:27:47,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-22 04:27:47,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2020-12-22 04:27:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-22 04:27:47,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-12-22 04:27:47,336 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2020-12-22 04:27:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:47,336 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-12-22 04:27:47,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:27:47,337 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-12-22 04:27:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 04:27:47,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:47,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:47,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 04:27:47,338 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:47,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:47,339 INFO L82 PathProgramCache]: Analyzing trace with hash 588855308, now seen corresponding path program 1 times [2020-12-22 04:27:47,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:47,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440639583] [2020-12-22 04:27:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:47,952 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 04:27:47,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440639583] [2020-12-22 04:27:47,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:47,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 04:27:47,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418064936] [2020-12-22 04:27:47,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:27:47,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:47,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:27:47,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:27:47,955 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 7 states. [2020-12-22 04:27:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:48,211 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2020-12-22 04:27:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 04:27:48,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-22 04:27:48,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:48,213 INFO L225 Difference]: With dead ends: 43 [2020-12-22 04:27:48,213 INFO L226 Difference]: Without dead ends: 27 [2020-12-22 04:27:48,214 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 04:27:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-22 04:27:48,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-12-22 04:27:48,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-22 04:27:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-22 04:27:48,220 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2020-12-22 04:27:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:48,221 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-22 04:27:48,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:27:48,221 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-22 04:27:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 04:27:48,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:48,222 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 04:27:48,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 04:27:48,222 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:48,223 INFO L82 PathProgramCache]: Analyzing trace with hash 394194232, now seen corresponding path program 1 times [2020-12-22 04:27:48,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:48,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520294767] [2020-12-22 04:27:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:48,296 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 04:27:48,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520294767] [2020-12-22 04:27:48,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:27:48,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 04:27:48,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294168685] [2020-12-22 04:27:48,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 04:27:48,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:48,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 04:27:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 04:27:48,300 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 6 states. [2020-12-22 04:27:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:48,425 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2020-12-22 04:27:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 04:27:48,426 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-22 04:27:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:48,429 INFO L225 Difference]: With dead ends: 40 [2020-12-22 04:27:48,429 INFO L226 Difference]: Without dead ends: 38 [2020-12-22 04:27:48,431 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 04:27:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-22 04:27:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2020-12-22 04:27:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-22 04:27:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-12-22 04:27:48,450 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 17 [2020-12-22 04:27:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:48,451 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-12-22 04:27:48,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 04:27:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-22 04:27:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 04:27:48,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:27:48,457 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:27:48,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 04:27:48,461 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:27:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:27:48,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1945950452, now seen corresponding path program 1 times [2020-12-22 04:27:48,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:27:48,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602559523] [2020-12-22 04:27:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:27:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:48,658 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 04:27:48,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602559523] [2020-12-22 04:27:48,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120247652] [2020-12-22 04:27:48,659 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 04:27:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:27:48,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 04:27:48,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:27:48,974 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 04:27:48,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:27:48,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2020-12-22 04:27:48,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429017520] [2020-12-22 04:27:48,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 04:27:48,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:27:48,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 04:27:48,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 04:27:48,976 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 7 states. [2020-12-22 04:27:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:27:49,164 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-12-22 04:27:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:27:49,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-22 04:27:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:27:49,166 INFO L225 Difference]: With dead ends: 28 [2020-12-22 04:27:49,167 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:27:49,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 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 04:27:49,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:27:49,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:27:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:27:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:27:49,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-12-22 04:27:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:27:49,169 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:27:49,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 04:27:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:27:49,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:27:49,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 04:27:49,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:27:49,566 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-12-22 04:27:49,746 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-12-22 04:27:49,856 INFO L189 CegarLoopUtils]: For program point L60(lines 60 93) no Hoare annotation was computed. [2020-12-22 04:27:49,856 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2020-12-22 04:27:49,857 INFO L185 CegarLoopUtils]: At program point L151(lines 29 152) the Hoare annotation is: false [2020-12-22 04:27:49,857 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:27:49,857 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:27:49,858 INFO L185 CegarLoopUtils]: At program point L119(lines 98 128) 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 ((.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse0 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse2 (+ .cse3 (* 4294967296 (div .cse0 4294967296)))) (.cse1 (* 4294967296 (div .cse3 4294967296)))) (and (<= (+ .cse0 .cse1) .cse2) (< .cse2 (+ .cse0 .cse1 1)))))) (<= (+ 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 04:27:49,858 INFO L192 CegarLoopUtils]: At program point L194(lines 14 196) the Hoare annotation is: true [2020-12-22 04:27:49,858 INFO L189 CegarLoopUtils]: For program point L62(lines 62 88) no Hoare annotation was computed. [2020-12-22 04:27:49,859 INFO L189 CegarLoopUtils]: For program point L29(lines 29 152) no Hoare annotation was computed. [2020-12-22 04:27:49,859 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 04:27:49,859 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2020-12-22 04:27:49,859 INFO L189 CegarLoopUtils]: For program point L21(lines 21 195) no Hoare annotation was computed. [2020-12-22 04:27:49,860 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 04:27:49,891 INFO L189 CegarLoopUtils]: For program point L71(lines 71 80) no Hoare annotation was computed. [2020-12-22 04:27:49,892 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 04:27:49,892 INFO L189 CegarLoopUtils]: For program point L97(lines 97 132) no Hoare annotation was computed. [2020-12-22 04:27:49,892 INFO L189 CegarLoopUtils]: For program point L31(lines 31 147) no Hoare annotation was computed. [2020-12-22 04:27:49,892 INFO L185 CegarLoopUtils]: At program point L172(lines 26 185) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) (= 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 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-22 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L40(lines 40 139) no Hoare annotation was computed. [2020-12-22 04:27:49,893 INFO L192 CegarLoopUtils]: At program point L131(lines 97 132) the Hoare annotation is: true [2020-12-22 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L156(lines 156 184) no Hoare annotation was computed. [2020-12-22 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L57(lines 57 133) no Hoare annotation was computed. [2020-12-22 04:27:49,893 INFO L189 CegarLoopUtils]: For program point L24(lines 24 190) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point L107(lines 107 120) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point L165(lines 165 173) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point L50(lines 50 138) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point L42(line 42) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L189 CegarLoopUtils]: For program point L158(lines 158 179) no Hoare annotation was computed. [2020-12-22 04:27:49,894 INFO L185 CegarLoopUtils]: At program point L92(lines 60 93) the Hoare annotation is: false [2020-12-22 04:27:49,895 INFO L189 CegarLoopUtils]: For program point L26(lines 26 185) no Hoare annotation was computed. [2020-12-22 04:27:49,895 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2020-12-22 04:27:49,895 INFO L189 CegarLoopUtils]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-22 04:27:49,895 INFO L189 CegarLoopUtils]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-22 04:27:49,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:27:49 BoogieIcfgContainer [2020-12-22 04:27:49,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:27:49,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:27:49,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:27:49,926 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:27:49,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:27:46" (3/4) ... [2020-12-22 04:27:49,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:27:49,943 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-22 04:27:49,944 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:27:49,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:27:49,945 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:27:50,079 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c-witness.graphml [2020-12-22 04:27:50,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:27:50,084 INFO L168 Benchmark]: Toolchain (without parser) took 4669.65 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 134.4 MB in the beginning and 170.4 MB in the end (delta: -36.0 MB). Peak memory consumption was 473.6 kB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,085 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:27:50,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.09 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 122.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.50 ms. Allocated memory is still 160.4 MB. Free memory was 122.7 MB in the beginning and 121.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,086 INFO L168 Benchmark]: Boogie Preprocessor took 27.79 ms. Allocated memory is still 160.4 MB. Free memory was 121.1 MB in the beginning and 119.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,087 INFO L168 Benchmark]: RCFGBuilder took 704.21 ms. Allocated memory is still 160.4 MB. Free memory was 119.7 MB in the beginning and 135.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,090 INFO L168 Benchmark]: TraceAbstraction took 3382.93 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 135.1 MB in the beginning and 175.1 MB in the end (delta: -40.0 MB). Peak memory consumption was 103.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,090 INFO L168 Benchmark]: Witness Printer took 153.76 ms. Allocated memory is still 196.1 MB. Free memory was 174.6 MB in the beginning and 170.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 04:27:50,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 132.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 341.09 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 122.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.50 ms. Allocated memory is still 160.4 MB. Free memory was 122.7 MB in the beginning and 121.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.79 ms. Allocated memory is still 160.4 MB. Free memory was 121.1 MB in the beginning and 119.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 704.21 ms. Allocated memory is still 160.4 MB. Free memory was 119.7 MB in the beginning and 135.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3382.93 ms. Allocated memory was 160.4 MB in the beginning and 196.1 MB in the end (delta: 35.7 MB). Free memory was 135.1 MB in the beginning and 175.1 MB in the end (delta: -40.0 MB). Peak memory consumption was 103.1 MB. Max. memory is 8.0 GB. * Witness Printer took 153.76 ms. Allocated memory is still 196.1 MB. Free memory was 174.6 MB in the beginning and 170.4 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: 167]: 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: 109]: 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 4 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: 26]: Loop Invariant Derived loop invariant: (!(__VERIFIER_assert__cond == 0) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * ((main__index2 + main__index1 * -1 + (main__index1 + -1) / 4294967296 * 4294967296 + 1) / 4294967296) + 99998 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 98]: 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) && 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) + 1) || 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: 14]: Loop Invariant Derived loop invariant: 1 - 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: 97]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 4 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: 180 SDtfs, 163 SDslu, 201 SDs, 0 SdLazy, 148 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 19 NumberOfFragments, 391 HoareAnnotationTreeSize, 9 FomulaSimplifications, 643 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 119 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 20375 SizeOfPredicates, 4 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...