./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-industry-pattern/aiob_4.c.v+lh-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 9e5c7c8f34d0399e1ec13072e237ea7df9536407415bc8e3ff2e61c34b30de96 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 15:39:58,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 15:39:58,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 15:39:58,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 15:39:58,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 15:39:58,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 15:39:58,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 15:39:58,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 15:39:58,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 15:39:58,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 15:39:58,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 15:39:58,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 15:39:58,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 15:39:58,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 15:39:58,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 15:39:58,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 15:39:58,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 15:39:58,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 15:39:58,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 15:39:58,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 15:39:58,674 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 15:39:58,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 15:39:58,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 15:39:58,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 15:39:58,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 15:39:58,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 15:39:58,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 15:39:58,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 15:39:58,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 15:39:58,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 15:39:58,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 15:39:58,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 15:39:58,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 15:39:58,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 15:39:58,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 15:39:58,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 15:39:58,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 15:39:58,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 15:39:58,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 15:39:58,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 15:39:58,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 15:39:58,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 15:39:58,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 15:39:58,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 15:39:58,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 15:39:58,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 15:39:58,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 15:39:58,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 15:39:58,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 15:39:58,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 15:39:58,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 15:39:58,732 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 15:39:58,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 15:39:58,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 15:39:58,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 15:39:58,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 15:39:58,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 15:39:58,734 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 15:39:58,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 15:39:58,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 15:39:58,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 15:39:58,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 15:39:58,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:39:58,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 15:39:58,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 15:39:58,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 15:39:58,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 15:39:58,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 15:39:58,742 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 15:39:58,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 15:39:58,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 15:39:58,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5c7c8f34d0399e1ec13072e237ea7df9536407415bc8e3ff2e61c34b30de96 [2022-07-13 15:39:58,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 15:39:58,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 15:39:58,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 15:39:58,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 15:39:58,982 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 15:39:58,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2022-07-13 15:39:59,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47217c08/3ee2a95128b44bdc90bd9dac8ecca3dd/FLAG3dfce15c0 [2022-07-13 15:39:59,434 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 15:39:59,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2022-07-13 15:39:59,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47217c08/3ee2a95128b44bdc90bd9dac8ecca3dd/FLAG3dfce15c0 [2022-07-13 15:39:59,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47217c08/3ee2a95128b44bdc90bd9dac8ecca3dd [2022-07-13 15:39:59,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 15:39:59,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 15:39:59,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 15:39:59,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 15:39:59,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 15:39:59,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:39:59" (1/1) ... [2022-07-13 15:39:59,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f304db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:39:59, skipping insertion in model container [2022-07-13 15:39:59,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:39:59" (1/1) ... [2022-07-13 15:39:59,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 15:39:59,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 15:40:00,054 WARN L230 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-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2022-07-13 15:40:00,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:40:00,072 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 15:40:00,119 WARN L230 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-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2022-07-13 15:40:00,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 15:40:00,140 INFO L208 MainTranslator]: Completed translation [2022-07-13 15:40:00,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00 WrapperNode [2022-07-13 15:40:00,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 15:40:00,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 15:40:00,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 15:40:00,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 15:40:00,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,200 INFO L137 Inliner]: procedures = 17, calls = 203, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 373 [2022-07-13 15:40:00,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 15:40:00,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 15:40:00,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 15:40:00,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 15:40:00,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 15:40:00,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 15:40:00,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 15:40:00,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 15:40:00,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (1/1) ... [2022-07-13 15:40:00,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 15:40:00,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:40:00,278 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) [2022-07-13 15:40:00,280 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 [2022-07-13 15:40:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 15:40:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-07-13 15:40:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 15:40:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 15:40:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 15:40:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 15:40:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 15:40:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 15:40:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 15:40:00,403 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 15:40:00,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 15:40:00,881 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 15:40:00,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 15:40:00,889 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 15:40:00,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:40:00 BoogieIcfgContainer [2022-07-13 15:40:00,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 15:40:00,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 15:40:00,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 15:40:00,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 15:40:00,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 03:39:59" (1/3) ... [2022-07-13 15:40:00,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7f7f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:40:00, skipping insertion in model container [2022-07-13 15:40:00,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:40:00" (2/3) ... [2022-07-13 15:40:00,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7f7f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 03:40:00, skipping insertion in model container [2022-07-13 15:40:00,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:40:00" (3/3) ... [2022-07-13 15:40:00,899 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2022-07-13 15:40:00,927 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 15:40:00,928 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 15:40:00,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 15:40:00,977 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e73a9dd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3e346554 [2022-07-13 15:40:00,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 15:40:00,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 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) [2022-07-13 15:40:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 15:40:00,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:40:00,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:40:00,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:40:00,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:40:00,996 INFO L85 PathProgramCache]: Analyzing trace with hash 176653045, now seen corresponding path program 1 times [2022-07-13 15:40:01,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:40:01,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084199178] [2022-07-13 15:40:01,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:40:01,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:40:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:40:01,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:01,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:40:01,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084199178] [2022-07-13 15:40:01,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084199178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 15:40:01,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 15:40:01,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 15:40:01,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996986465] [2022-07-13 15:40:01,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 15:40:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 15:40:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:40:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 15:40:01,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 15:40:01,352 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 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) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-13 15:40:01,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:40:01,399 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-07-13 15:40:01,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 15:40:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-07-13 15:40:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:40:01,408 INFO L225 Difference]: With dead ends: 32 [2022-07-13 15:40:01,408 INFO L226 Difference]: Without dead ends: 17 [2022-07-13 15:40:01,410 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 [2022-07-13 15:40:01,413 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 15:40:01,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 37 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 15:40:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-13 15:40:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-07-13 15:40:01,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2022-07-13 15:40:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-07-13 15:40:01,439 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2022-07-13 15:40:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:40:01,440 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-07-13 15:40:01,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-13 15:40:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-07-13 15:40:01,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 15:40:01,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:40:01,442 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 15:40:01,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 15:40:01,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:40:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:40:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -314667186, now seen corresponding path program 1 times [2022-07-13 15:40:01,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:40:01,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075818328] [2022-07-13 15:40:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:40:01,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:40:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:40:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:01,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:40:01,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075818328] [2022-07-13 15:40:01,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075818328] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:40:01,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038291019] [2022-07-13 15:40:01,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:40:01,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:40:01,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:40:01,607 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) [2022-07-13 15:40:01,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 15:40:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:40:01,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 15:40:01,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:40:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:01,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:40:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:01,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038291019] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:40:01,986 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:40:01,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-13 15:40:01,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893446268] [2022-07-13 15:40:01,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:40:01,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 15:40:01,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:40:01,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 15:40:01,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-13 15:40:01,988 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-07-13 15:40:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:40:02,177 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-07-13 15:40:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 15:40:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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 [2022-07-13 15:40:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:40:02,179 INFO L225 Difference]: With dead ends: 34 [2022-07-13 15:40:02,179 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 15:40:02,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-13 15:40:02,181 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 15:40:02,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 30 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 15:40:02,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 15:40:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-07-13 15:40:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 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) [2022-07-13 15:40:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2022-07-13 15:40:02,186 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 13 [2022-07-13 15:40:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:40:02,187 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2022-07-13 15:40:02,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2022-07-13 15:40:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2022-07-13 15:40:02,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 15:40:02,188 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:40:02,188 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-07-13 15:40:02,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 15:40:02,399 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 [2022-07-13 15:40:02,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:40:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:40:02,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1756489163, now seen corresponding path program 2 times [2022-07-13 15:40:02,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:40:02,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016874098] [2022-07-13 15:40:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:40:02,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:40:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:40:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:02,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:40:02,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016874098] [2022-07-13 15:40:02,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016874098] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:40:02,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108623060] [2022-07-13 15:40:02,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 15:40:02,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:40:02,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:40:02,648 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) [2022-07-13 15:40:02,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 15:40:02,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 15:40:02,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 15:40:02,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-13 15:40:02,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:40:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:02,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:40:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:03,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108623060] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:40:03,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:40:03,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-07-13 15:40:03,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599896593] [2022-07-13 15:40:03,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:40:03,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-13 15:40:03,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:40:03,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-13 15:40:03,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-07-13 15:40:03,070 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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) [2022-07-13 15:40:03,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:40:03,727 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2022-07-13 15:40:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 15:40:03,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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 28 [2022-07-13 15:40:03,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:40:03,729 INFO L225 Difference]: With dead ends: 64 [2022-07-13 15:40:03,729 INFO L226 Difference]: Without dead ends: 61 [2022-07-13 15:40:03,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2022-07-13 15:40:03,730 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 59 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 15:40:03,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 69 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 15:40:03,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-13 15:40:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-07-13 15:40:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 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) [2022-07-13 15:40:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-07-13 15:40:03,739 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 28 [2022-07-13 15:40:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:40:03,740 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-07-13 15:40:03,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 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) [2022-07-13 15:40:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-07-13 15:40:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-13 15:40:03,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 15:40:03,742 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-07-13 15:40:03,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 15:40:03,963 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 [2022-07-13 15:40:03,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 15:40:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 15:40:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 426197269, now seen corresponding path program 3 times [2022-07-13 15:40:03,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 15:40:03,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789147523] [2022-07-13 15:40:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 15:40:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 15:40:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 15:40:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 15:40:04,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 15:40:04,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789147523] [2022-07-13 15:40:04,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789147523] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 15:40:04,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119456500] [2022-07-13 15:40:04,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 15:40:04,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:40:04,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 15:40:04,256 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) [2022-07-13 15:40:04,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 15:40:04,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-13 15:40:04,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 15:40:04,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-13 15:40:04,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 15:40:04,780 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 15:40:04,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-07-13 15:40:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-07-13 15:40:04,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 15:40:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-07-13 15:40:06,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119456500] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 15:40:06,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 15:40:06,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 26 [2022-07-13 15:40:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064722671] [2022-07-13 15:40:06,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 15:40:06,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-13 15:40:06,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 15:40:06,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-13 15:40:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2022-07-13 15:40:06,248 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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) [2022-07-13 15:40:07,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 15:40:07,398 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2022-07-13 15:40:07,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-13 15:40:07,398 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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 58 [2022-07-13 15:40:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 15:40:07,399 INFO L225 Difference]: With dead ends: 67 [2022-07-13 15:40:07,399 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 15:40:07,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=572, Invalid=2080, Unknown=0, NotChecked=0, Total=2652 [2022-07-13 15:40:07,401 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 199 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 15:40:07,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 115 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 354 Invalid, 0 Unknown, 67 Unchecked, 0.3s Time] [2022-07-13 15:40:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 15:40:07,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 15:40:07,402 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) [2022-07-13 15:40:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 15:40:07,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-07-13 15:40:07,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 15:40:07,402 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 15:40:07,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 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) [2022-07-13 15:40:07,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 15:40:07,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 15:40:07,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 15:40:07,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 15:40:07,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 15:40:07,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 15:40:07,721 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 236) no Hoare annotation was computed. [2022-07-13 15:40:07,721 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 15:40:07,721 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 208) no Hoare annotation was computed. [2022-07-13 15:40:07,721 INFO L899 garLoopResultBuilder]: For program point L221(line 221) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 229) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 234) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 207) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2022-07-13 15:40:07,722 INFO L895 garLoopResultBuilder]: At program point L202(lines 167 235) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| 492)) 0))) (or (and (= |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 0) .cse0 (= ~Id_MCDC_93~0 0)) (and (< (mod ~Id_MCDC_93~0 4294967296) 42) (< (mod (+ |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 4294967295) 4294967296) 42) .cse0 (exists ((|ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset| Int)) (not (= (* (mod (+ |ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0#1| 4294967295) 4294967296) 12) 492)))))) [2022-07-13 15:40:07,722 INFO L902 garLoopResultBuilder]: At program point L233(lines 133 237) the Hoare annotation is: true [2022-07-13 15:40:07,726 INFO L356 BasicCegarLoop]: Path program histogram: [3, 1] [2022-07-13 15:40:07,727 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 15:40:07,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 03:40:07 BoogieIcfgContainer [2022-07-13 15:40:07,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 15:40:07,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 15:40:07,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 15:40:07,746 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 15:40:07,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:40:00" (3/4) ... [2022-07-13 15:40:07,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 15:40:07,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-07-13 15:40:07,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-13 15:40:07,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-13 15:40:07,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 15:40:07,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 15:40:07,796 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((Id_MCDC_89__Id_MCDC_96 == 0 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 == 0) || (((Id_MCDC_93 % 4294967296 < 42 && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && (\exists ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset : int :: !((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12 == 492))) [2022-07-13 15:40:07,902 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 15:40:07,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 15:40:07,903 INFO L158 Benchmark]: Toolchain (without parser) took 8091.14ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 90.2MB in the beginning and 133.8MB in the end (delta: -43.6MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,903 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 15:40:07,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.02ms. Allocated memory is still 113.2MB. Free memory was 90.2MB in the beginning and 74.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.90ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 71.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,904 INFO L158 Benchmark]: Boogie Preprocessor took 42.77ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 68.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,904 INFO L158 Benchmark]: RCFGBuilder took 646.15ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 45.7MB in the end (delta: 22.3MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,905 INFO L158 Benchmark]: TraceAbstraction took 6852.43ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 44.8MB in the beginning and 51.7MB in the end (delta: -6.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,905 INFO L158 Benchmark]: Witness Printer took 157.21ms. Allocated memory is still 167.8MB. Free memory was 51.7MB in the beginning and 133.8MB in the end (delta: -82.1MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2022-07-13 15:40:07,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 40.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.02ms. Allocated memory is still 113.2MB. Free memory was 90.2MB in the beginning and 74.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.90ms. Allocated memory is still 113.2MB. Free memory was 74.3MB in the beginning and 71.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.77ms. Allocated memory is still 113.2MB. Free memory was 71.0MB in the beginning and 68.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.15ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 45.7MB in the end (delta: 22.3MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6852.43ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 44.8MB in the beginning and 51.7MB in the end (delta: -6.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Witness Printer took 157.21ms. Allocated memory is still 167.8MB. Free memory was 51.7MB in the beginning and 133.8MB in the end (delta: -82.1MB). Peak memory consumption was 7.0MB. 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: 221]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 305 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 67 IncrementalHoareTripleChecker+Unchecked, 204 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 47 mSDtfsCounter, 567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 17 NumberOfFragments, 51 HoareAnnotationTreeSize, 2 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 454 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 206 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 295 ConstructedInterpolants, 50 QuantifiedInterpolants, 3472 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1741 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 405/900 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 1 specifications checked. All of them hold - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((Id_MCDC_89__Id_MCDC_96 == 0 && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 == 0) || (((Id_MCDC_93 % 4294967296 < 42 && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && (\exists ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset : int :: !((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 * 12 == 492))) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-13 15:40:07,924 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