./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac50e78a0e7740f8f8502d719fb62ad334aab86379189891d467b39f2a3c9d3d --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 20:03:38,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 20:03:38,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 20:03:38,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 20:03:38,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 20:03:38,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 20:03:38,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 20:03:38,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 20:03:38,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 20:03:38,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 20:03:38,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 20:03:38,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 20:03:38,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 20:03:38,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 20:03:38,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 20:03:38,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 20:03:38,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 20:03:38,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 20:03:38,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 20:03:38,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 20:03:38,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 20:03:38,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 20:03:38,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 20:03:38,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 20:03:38,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 20:03:38,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 20:03:38,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 20:03:38,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 20:03:38,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 20:03:38,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 20:03:38,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 20:03:38,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 20:03:38,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 20:03:38,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 20:03:38,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 20:03:38,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 20:03:38,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 20:03:38,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 20:03:38,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 20:03:38,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 20:03:38,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 20:03:38,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 20:03:38,845 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 20:03:38,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 20:03:38,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 20:03:38,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 20:03:38,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 20:03:38,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 20:03:38,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 20:03:38,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 20:03:38,864 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 20:03:38,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 20:03:38,865 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 20:03:38,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 20:03:38,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 20:03:38,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 20:03:38,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 20:03:38,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 20:03:38,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 20:03:38,867 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 20:03:38,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 20:03:38,869 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 20:03:38,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 20:03:38,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 20:03:38,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 20:03:38,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 20:03:38,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 20:03:38,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 20:03:38,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 20:03:38,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 20:03:38,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 20:03:38,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 20:03:38,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 20:03:38,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 20:03:38,875 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 20:03:38,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 20:03:38,876 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 20:03:38,876 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50e78a0e7740f8f8502d719fb62ad334aab86379189891d467b39f2a3c9d3d [2023-02-15 20:03:39,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 20:03:39,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 20:03:39,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 20:03:39,115 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 20:03:39,116 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 20:03:39,117 INFO L432 ainManager$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 [2023-02-15 20:03:40,211 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 20:03:40,398 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 20:03:40,399 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+nlh-reducer.c [2023-02-15 20:03:40,406 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9bcad24/7a13d635399b431d8bd393d422d70e9e/FLAG8a7e22a63 [2023-02-15 20:03:40,422 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9bcad24/7a13d635399b431d8bd393d422d70e9e [2023-02-15 20:03:40,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 20:03:40,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 20:03:40,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 20:03:40,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 20:03:40,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 20:03:40,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccde380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40, skipping insertion in model container [2023-02-15 20:03:40,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 20:03:40,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 20:03:40,582 WARN L237 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[1215,1228] [2023-02-15 20:03:40,602 WARN L237 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[1969,1982] [2023-02-15 20:03:40,607 WARN L237 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[2504,2517] [2023-02-15 20:03:40,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 20:03:40,621 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 20:03:40,634 WARN L237 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[1215,1228] [2023-02-15 20:03:40,643 WARN L237 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[1969,1982] [2023-02-15 20:03:40,650 WARN L237 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[2504,2517] [2023-02-15 20:03:40,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 20:03:40,663 INFO L208 MainTranslator]: Completed translation [2023-02-15 20:03:40,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40 WrapperNode [2023-02-15 20:03:40,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 20:03:40,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 20:03:40,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 20:03:40,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 20:03:40,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,702 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 134 [2023-02-15 20:03:40,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 20:03:40,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 20:03:40,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 20:03:40,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 20:03:40,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 20:03:40,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 20:03:40,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 20:03:40,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 20:03:40,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (1/1) ... [2023-02-15 20:03:40,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 20:03:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:03:40,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 20:03:40,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 20:03:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 20:03:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 20:03:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 20:03:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 20:03:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 20:03:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 20:03:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 20:03:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 20:03:40,922 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 20:03:40,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 20:03:41,176 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 20:03:41,182 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 20:03:41,191 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 20:03:41,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:03:41 BoogieIcfgContainer [2023-02-15 20:03:41,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 20:03:41,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 20:03:41,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 20:03:41,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 20:03:41,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 08:03:40" (1/3) ... [2023-02-15 20:03:41,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1701086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 08:03:41, skipping insertion in model container [2023-02-15 20:03:41,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:03:40" (2/3) ... [2023-02-15 20:03:41,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1701086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 08:03:41, skipping insertion in model container [2023-02-15 20:03:41,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:03:41" (3/3) ... [2023-02-15 20:03:41,202 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+nlh-reducer.c [2023-02-15 20:03:41,216 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 20:03:41,216 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-02-15 20:03:41,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 20:03:41,281 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b72feb4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 20:03:41,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-02-15 20:03:41,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:41,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 20:03:41,292 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:41,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:41,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:41,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:41,299 INFO L85 PathProgramCache]: Analyzing trace with hash 685537565, now seen corresponding path program 1 times [2023-02-15 20:03:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:41,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543187294] [2023-02-15 20:03:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:41,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:41,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:41,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543187294] [2023-02-15 20:03:41,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543187294] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:41,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:03:41,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 20:03:41,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172553575] [2023-02-15 20:03:41,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:41,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 20:03:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:41,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 20:03:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 20:03:41,608 INFO L87 Difference]: Start difference. First operand has 34 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:41,654 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2023-02-15 20:03:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 20:03:41,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 20:03:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:41,663 INFO L225 Difference]: With dead ends: 66 [2023-02-15 20:03:41,663 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 20:03:41,665 INFO L412 NwaCegarLoop]: 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 [2023-02-15 20:03:41,689 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:41,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 84 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 20:03:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-15 20:03:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-02-15 20:03:41,722 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 11 [2023-02-15 20:03:41,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:41,723 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-02-15 20:03:41,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:41,723 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-02-15 20:03:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 20:03:41,724 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:41,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:41,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 20:03:41,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:41,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1849249499, now seen corresponding path program 1 times [2023-02-15 20:03:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:41,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064159878] [2023-02-15 20:03:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:41,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:41,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:41,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064159878] [2023-02-15 20:03:41,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064159878] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:03:41,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999384625] [2023-02-15 20:03:41,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:41,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:41,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:03:41,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:03:41,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 20:03:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:42,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 20:03:42,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:03:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:42,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:03:42,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:42,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999384625] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:03:42,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:03:42,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 20:03:42,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610005769] [2023-02-15 20:03:42,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:03:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 20:03:42,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 20:03:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-02-15 20:03:42,103 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:42,160 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2023-02-15 20:03:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 20:03:42,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-15 20:03:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:42,162 INFO L225 Difference]: With dead ends: 63 [2023-02-15 20:03:42,162 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 20:03:42,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-02-15 20:03:42,166 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:42,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 167 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 20:03:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-15 20:03:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2023-02-15 20:03:42,176 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 13 [2023-02-15 20:03:42,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:42,176 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2023-02-15 20:03:42,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-02-15 20:03:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 20:03:42,177 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:42,178 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:42,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 20:03:42,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:42,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1839235861, now seen corresponding path program 2 times [2023-02-15 20:03:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:42,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469686891] [2023-02-15 20:03:42,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:42,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:42,576 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:42,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:42,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469686891] [2023-02-15 20:03:42,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469686891] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:03:42,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510217362] [2023-02-15 20:03:42,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 20:03:42,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:42,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:03:42,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:03:42,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 20:03:42,640 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 20:03:42,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:03:42,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 20:03:42,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:03:42,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:03:42,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 20:03:42,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510217362] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:42,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 20:03:42,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-02-15 20:03:42,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288722973] [2023-02-15 20:03:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:42,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 20:03:42,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:42,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 20:03:42,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 20:03:42,689 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:42,705 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2023-02-15 20:03:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 20:03:42,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-15 20:03:42,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:42,706 INFO L225 Difference]: With dead ends: 44 [2023-02-15 20:03:42,707 INFO L226 Difference]: Without dead ends: 39 [2023-02-15 20:03:42,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-15 20:03:42,709 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 11 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:42,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 54 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-15 20:03:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2023-02-15 20:03:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-02-15 20:03:42,719 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 19 [2023-02-15 20:03:42,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:42,719 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-02-15 20:03:42,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-02-15 20:03:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 20:03:42,720 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:42,720 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:42,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 20:03:42,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-15 20:03:42,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:42,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash -999102239, now seen corresponding path program 1 times [2023-02-15 20:03:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:42,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487468255] [2023-02-15 20:03:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:42,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:03:42,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:42,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487468255] [2023-02-15 20:03:42,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487468255] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:42,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:03:42,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 20:03:42,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464651109] [2023-02-15 20:03:42,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:42,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 20:03:42,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:42,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 20:03:42,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 20:03:42,979 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:43,001 INFO L93 Difference]: Finished difference Result 64 states and 73 transitions. [2023-02-15 20:03:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 20:03:43,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-15 20:03:43,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:43,003 INFO L225 Difference]: With dead ends: 64 [2023-02-15 20:03:43,003 INFO L226 Difference]: Without dead ends: 44 [2023-02-15 20:03:43,003 INFO L412 NwaCegarLoop]: 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 [2023-02-15 20:03:43,004 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 16 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:43,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 44 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:43,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-15 20:03:43,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2023-02-15 20:03:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-02-15 20:03:43,009 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 20 [2023-02-15 20:03:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:43,009 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-02-15 20:03:43,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-02-15 20:03:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 20:03:43,010 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:43,010 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 20:03:43,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:43,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:43,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1067591748, now seen corresponding path program 1 times [2023-02-15 20:03:43,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:43,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975163655] [2023-02-15 20:03:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:43,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:03:43,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:43,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975163655] [2023-02-15 20:03:43,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975163655] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:43,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:03:43,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 20:03:43,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425650325] [2023-02-15 20:03:43,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:43,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 20:03:43,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 20:03:43,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 20:03:43,069 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:43,087 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2023-02-15 20:03:43,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 20:03:43,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-15 20:03:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:43,089 INFO L225 Difference]: With dead ends: 57 [2023-02-15 20:03:43,089 INFO L226 Difference]: Without dead ends: 55 [2023-02-15 20:03:43,089 INFO L412 NwaCegarLoop]: 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 [2023-02-15 20:03:43,090 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 22 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:43,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 92 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:43,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-15 20:03:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2023-02-15 20:03:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 38 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2023-02-15 20:03:43,096 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2023-02-15 20:03:43,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:43,096 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2023-02-15 20:03:43,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-02-15 20:03:43,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 20:03:43,097 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:43,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:43,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 20:03:43,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:43,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:43,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1326356583, now seen corresponding path program 1 times [2023-02-15 20:03:43,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:43,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563004709] [2023-02-15 20:03:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:43,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:03:43,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:43,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563004709] [2023-02-15 20:03:43,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563004709] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:43,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:03:43,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 20:03:43,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75559628] [2023-02-15 20:03:43,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:43,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 20:03:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:43,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 20:03:43,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 20:03:43,134 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:43,153 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2023-02-15 20:03:43,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 20:03:43,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-15 20:03:43,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:43,154 INFO L225 Difference]: With dead ends: 60 [2023-02-15 20:03:43,154 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 20:03:43,155 INFO L412 NwaCegarLoop]: 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 [2023-02-15 20:03:43,155 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 8 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:43,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 20:03:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2023-02-15 20:03:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.1875) internal successors, (38), 33 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2023-02-15 20:03:43,160 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21 [2023-02-15 20:03:43,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:43,161 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2023-02-15 20:03:43,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-02-15 20:03:43,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 20:03:43,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:43,162 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:43,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 20:03:43,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:43,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:43,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1951259100, now seen corresponding path program 1 times [2023-02-15 20:03:43,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:43,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836177679] [2023-02-15 20:03:43,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:43,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:43,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:43,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836177679] [2023-02-15 20:03:43,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836177679] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:03:43,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668683711] [2023-02-15 20:03:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:43,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:03:43,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:03:43,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 20:03:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:43,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 20:03:43,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:03:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:43,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:03:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:43,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668683711] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:03:43,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:03:43,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 20:03:43,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319496907] [2023-02-15 20:03:43,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:03:43,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 20:03:43,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 20:03:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-02-15 20:03:43,547 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:43,835 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2023-02-15 20:03:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 20:03:43,837 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-15 20:03:43,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:43,837 INFO L225 Difference]: With dead ends: 69 [2023-02-15 20:03:43,837 INFO L226 Difference]: Without dead ends: 46 [2023-02-15 20:03:43,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-02-15 20:03:43,838 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:43,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 245 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 20:03:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-15 20:03:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-02-15 20:03:43,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-02-15 20:03:43,844 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 26 [2023-02-15 20:03:43,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:43,844 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-02-15 20:03:43,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:43,844 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-02-15 20:03:43,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 20:03:43,845 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:43,845 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:43,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 20:03:44,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:44,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:44,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:44,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1760145768, now seen corresponding path program 2 times [2023-02-15 20:03:44,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:44,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900732984] [2023-02-15 20:03:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:03:44,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:44,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900732984] [2023-02-15 20:03:44,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900732984] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:03:44,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266713415] [2023-02-15 20:03:44,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 20:03:44,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:44,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:03:44,381 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:03:44,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 20:03:44,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 20:03:44,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:03:44,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-15 20:03:44,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:03:45,350 INFO L321 Elim1Store]: treesize reduction 120, result has 5.5 percent of original size [2023-02-15 20:03:45,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 594 treesize of output 300 [2023-02-15 20:03:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-02-15 20:03:45,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 20:03:45,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266713415] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:45,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 20:03:45,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-02-15 20:03:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596836185] [2023-02-15 20:03:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:45,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 20:03:45,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 20:03:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-02-15 20:03:45,501 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:45,818 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2023-02-15 20:03:45,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 20:03:45,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-02-15 20:03:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:45,819 INFO L225 Difference]: With dead ends: 61 [2023-02-15 20:03:45,819 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 20:03:45,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2023-02-15 20:03:45,821 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:45,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 47 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 20:03:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 20:03:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-02-15 20:03:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2023-02-15 20:03:45,826 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 38 [2023-02-15 20:03:45,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:45,826 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2023-02-15 20:03:45,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:45,826 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2023-02-15 20:03:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 20:03:45,827 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:03:45,827 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:03:45,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 20:03:46,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:03:46,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:03:46,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:03:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1951461462, now seen corresponding path program 1 times [2023-02-15 20:03:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:03:46,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938638009] [2023-02-15 20:03:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:03:46,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:03:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:03:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-02-15 20:03:46,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:03:46,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938638009] [2023-02-15 20:03:46,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938638009] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:03:46,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:03:46,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 20:03:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355404996] [2023-02-15 20:03:46,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:03:46,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 20:03:46,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:03:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 20:03:46,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 20:03:46,140 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:03:46,177 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2023-02-15 20:03:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 20:03:46,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-02-15 20:03:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:03:46,178 INFO L225 Difference]: With dead ends: 46 [2023-02-15 20:03:46,178 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 20:03:46,179 INFO L412 NwaCegarLoop]: 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 [2023-02-15 20:03:46,179 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:03:46,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:03:46,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 20:03:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 20:03:46,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 20:03:46,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2023-02-15 20:03:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:03:46,181 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 20:03:46,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:03:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 20:03:46,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 20:03:46,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-02-15 20:03:46,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-02-15 20:03:46,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-02-15 20:03:46,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 20:03:46,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 20:03:46,352 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 97) no Hoare annotation was computed. [2023-02-15 20:03:46,353 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 77) no Hoare annotation was computed. [2023-02-15 20:03:46,353 INFO L895 garLoopResultBuilder]: At program point L89(lines 64 97) the Hoare annotation is: false [2023-02-15 20:03:46,353 INFO L895 garLoopResultBuilder]: At program point L52(lines 50 143) the Hoare annotation is: (let ((.cse0 (= 1 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|)) (.cse1 (let ((.cse6 (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (let ((.cse5 (< (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296) .cse6))) (or (let ((.cse4 (mod (+ |ULTIMATE.start_main_~main__index1~0#1| 4294967295) 4294967296)) (.cse2 (mod (+ |ULTIMATE.start_main_~main__index2~0#1| 1) 4294967296))) (and (< .cse2 100000) (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse3 (+ (* .cse4 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse3 (+ (* .cse2 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296))) (< .cse4 .cse2) .cse5)) (and (< .cse6 100000) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 1) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) .cse5)))))) (or (and (= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) .cse0 .cse1) (and (not (= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|)) (not (= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1|)) .cse0 .cse1))) [2023-02-15 20:03:46,353 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2023-02-15 20:03:46,353 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-02-15 20:03:46,353 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 143) no Hoare annotation was computed. [2023-02-15 20:03:46,353 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 14 172) the Hoare annotation is: true [2023-02-15 20:03:46,353 INFO L895 garLoopResultBuilder]: At program point $Ultimate##32(lines 105 131) the Hoare annotation is: (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~main__index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~main__index2~0#1| 1) 4294967296))) (and (< .cse0 100000) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse0 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296))) (< .cse2 .cse0))) (let ((.cse3 (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (and (< .cse3 100000) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 1) (< (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296) .cse3)))) [2023-02-15 20:03:46,353 INFO L895 garLoopResultBuilder]: At program point $Ultimate##30(lines 102 136) the Hoare annotation is: (or (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) (let ((.cse2 (mod (+ |ULTIMATE.start_main_~main__index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~main__index2~0#1| 1) 4294967296))) (and (< .cse0 100000) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse0 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296))) (< .cse2 .cse0)))) [2023-02-15 20:03:46,354 INFO L895 garLoopResultBuilder]: At program point L69(lines 66 92) the Hoare annotation is: (let ((.cse2 (mod (+ |ULTIMATE.start_main_~main__index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~main__index2~0#1| 1) 4294967296))) (and (not (= 0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1|)) (< .cse0 100000) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse0 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296))) (= 1 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (< .cse2 .cse0) (< (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296) (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296)))) [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 137) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 166) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L895 garLoopResultBuilder]: At program point L148(lines 33 156) the Hoare annotation is: false [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L895 garLoopResultBuilder]: At program point L20-3(lines 20 23) the Hoare annotation is: (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 92) no Hoare annotation was computed. [2023-02-15 20:03:46,354 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 156) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 171) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 142) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 124) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L895 garLoopResultBuilder]: At program point L38(lines 35 151) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (and (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) (= 1 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (< .cse0 100000) (< (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296) .cse0))) [2023-02-15 20:03:46,355 INFO L902 garLoopResultBuilder]: At program point L129(lines 102 136) the Hoare annotation is: true [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 161) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2023-02-15 20:03:46,355 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 151) no Hoare annotation was computed. [2023-02-15 20:03:46,358 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-02-15 20:03:46,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 20:03:46,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 08:03:46 BoogieIcfgContainer [2023-02-15 20:03:46,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 20:03:46,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 20:03:46,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 20:03:46,376 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 20:03:46,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:03:41" (3/4) ... [2023-02-15 20:03:46,379 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 20:03:46,387 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-02-15 20:03:46,387 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 20:03:46,387 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 20:03:46,388 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 20:03:46,427 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 20:03:46,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 20:03:46,428 INFO L158 Benchmark]: Toolchain (without parser) took 6001.78ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 65.6MB in the beginning and 96.3MB in the end (delta: -30.7MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,428 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 76.5MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 20:03:46,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 53.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.45ms. Allocated memory is still 107.0MB. Free memory was 53.6MB in the beginning and 51.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,430 INFO L158 Benchmark]: Boogie Preprocessor took 34.90ms. Allocated memory is still 107.0MB. Free memory was 51.7MB in the beginning and 50.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,430 INFO L158 Benchmark]: RCFGBuilder took 454.79ms. Allocated memory is still 107.0MB. Free memory was 50.3MB in the beginning and 70.4MB in the end (delta: -20.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,431 INFO L158 Benchmark]: TraceAbstraction took 5180.17ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 70.0MB in the beginning and 99.4MB in the end (delta: -29.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,431 INFO L158 Benchmark]: Witness Printer took 51.31ms. Allocated memory is still 174.1MB. Free memory was 99.4MB in the beginning and 96.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 20:03:46,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 76.5MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.45ms. Allocated memory is still 107.0MB. Free memory was 65.3MB in the beginning and 53.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.45ms. Allocated memory is still 107.0MB. Free memory was 53.6MB in the beginning and 51.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.90ms. Allocated memory is still 107.0MB. Free memory was 51.7MB in the beginning and 50.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.79ms. Allocated memory is still 107.0MB. Free memory was 50.3MB in the beginning and 70.4MB in the end (delta: -20.1MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5180.17ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 70.0MB in the beginning and 99.4MB in the end (delta: -29.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Witness Printer took 51.31ms. Allocated memory is still 174.1MB. Free memory was 99.4MB in the beginning and 96.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 77]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 114]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 851 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 581 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 270 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=7, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 34 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 31 NumberOfFragments, 385 HoareAnnotationTreeSize, 10 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 303 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 1046 SizeOfPredicates, 12 NumberOfNonLiveVariables, 351 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 264/431 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: main__loop_entered == 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: main__loop_entered == 0 || (((main__index2 + 1) % 4294967296 < 100000 && unknown-#memory_int-unknown[main__array][(main__index1 + 4294967295) % 4294967296 * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][(main__index2 + 1) % 4294967296 * 4 + main__array] % 4294967296) && (main__index1 + 4294967295) % 4294967296 < (main__index2 + 1) % 4294967296) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((main__loop_entered == 0 && 1 == main____CPAchecker_TMP_0) && main__index2 % 4294967296 < 100000) && main__index1 % 4294967296 < main__index2 % 4294967296 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((1 == main____CPAchecker_TMP_0 && 1 == __VERIFIER_assert__cond) && (((((main__index2 + 1) % 4294967296 < 100000 && unknown-#memory_int-unknown[main__array][(main__index1 + 4294967295) % 4294967296 * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][(main__index2 + 1) % 4294967296 * 4 + main__array] % 4294967296) && (main__index1 + 4294967295) % 4294967296 < (main__index2 + 1) % 4294967296) && main__index1 % 4294967296 < main__index2 % 4294967296) || (((main__index2 % 4294967296 < 100000 && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1) && main__index1 % 4294967296 < main__index2 % 4294967296))) || (((!(0 == __VERIFIER_assert__cond) && !(0 == main____CPAchecker_TMP_0)) && 1 == __VERIFIER_assert__cond) && (((((main__index2 + 1) % 4294967296 < 100000 && unknown-#memory_int-unknown[main__array][(main__index1 + 4294967295) % 4294967296 * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][(main__index2 + 1) % 4294967296 * 4 + main__array] % 4294967296) && (main__index1 + 4294967295) % 4294967296 < (main__index2 + 1) % 4294967296) && main__index1 % 4294967296 < main__index2 % 4294967296) || (((main__index2 % 4294967296 < 100000 && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1) && main__index1 % 4294967296 < main__index2 % 4294967296))) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((!(0 == main____CPAchecker_TMP_0) && (main__index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[main__array][(main__index1 + 4294967295) % 4294967296 * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][(main__index2 + 1) % 4294967296 * 4 + main__array] % 4294967296) && 1 == __VERIFIER_assert__cond) && (main__index1 + 4294967295) % 4294967296 < (main__index2 + 1) % 4294967296) && main__index1 % 4294967296 < main__index2 % 4294967296 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: (((main__index2 + 1) % 4294967296 < 100000 && unknown-#memory_int-unknown[main__array][(main__index1 + 4294967295) % 4294967296 * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][(main__index2 + 1) % 4294967296 * 4 + main__array] % 4294967296) && (main__index1 + 4294967295) % 4294967296 < (main__index2 + 1) % 4294967296) || ((main__index2 % 4294967296 < 100000 && __VERIFIER_assert__cond == 1) && main__index1 % 4294967296 < main__index2 % 4294967296) RESULT: Ultimate proved your program to be correct! [2023-02-15 20:03:46,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE