./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-lit/gsv2008.c.i.v+lhb-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 2f79720b54b4b9430b2efff386b59c4cac88edea0ef8f0ba223c5daccad25b87 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 13:50:57,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 13:50:57,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 13:50:57,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 13:50:57,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 13:50:57,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 13:50:57,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 13:50:57,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 13:50:57,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 13:50:57,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 13:50:57,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 13:50:57,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 13:50:57,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 13:50:57,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 13:50:57,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 13:50:57,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 13:50:57,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 13:50:57,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 13:50:57,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 13:50:57,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 13:50:57,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 13:50:57,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 13:50:57,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 13:50:57,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 13:50:57,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 13:50:57,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 13:50:57,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 13:50:57,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 13:50:57,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 13:50:57,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 13:50:57,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 13:50:57,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 13:50:57,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 13:50:57,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 13:50:57,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 13:50:57,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 13:50:57,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 13:50:57,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 13:50:57,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 13:50:57,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 13:50:57,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 13:50:57,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 13:50:57,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 13:50:57,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 13:50:57,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 13:50:57,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 13:50:57,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 13:50:57,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 13:50:57,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 13:50:57,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 13:50:57,726 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 13:50:57,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 13:50:57,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 13:50:57,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 13:50:57,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 13:50:57,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 13:50:57,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 13:50:57,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 13:50:57,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 13:50:57,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 13:50:57,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 13:50:57,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 13:50:57,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 13:50:57,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 13:50:57,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 13:50:57,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 13:50:57,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:50:57,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 13:50:57,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 13:50:57,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 13:50:57,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 13:50:57,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 13:50:57,731 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 13:50:57,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 13:50:57,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 13:50:57,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 13:50:57,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f79720b54b4b9430b2efff386b59c4cac88edea0ef8f0ba223c5daccad25b87 [2021-12-14 13:50:57,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 13:50:57,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 13:50:57,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 13:50:57,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 13:50:57,953 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 13:50:57,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2021-12-14 13:50:58,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9a387c6/4bb24f8ecb1546e385710e16d2e8ec4d/FLAG6551d4cb1 [2021-12-14 13:50:58,383 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 13:50:58,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2021-12-14 13:50:58,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9a387c6/4bb24f8ecb1546e385710e16d2e8ec4d/FLAG6551d4cb1 [2021-12-14 13:50:58,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9a387c6/4bb24f8ecb1546e385710e16d2e8ec4d [2021-12-14 13:50:58,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 13:50:58,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 13:50:58,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 13:50:58,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 13:50:58,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 13:50:58,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2927524e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58, skipping insertion in model container [2021-12-14 13:50:58,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 13:50:58,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 13:50:58,592 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-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2021-12-14 13:50:58,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:50:58,601 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 13:50:58,615 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-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2021-12-14 13:50:58,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 13:50:58,626 INFO L208 MainTranslator]: Completed translation [2021-12-14 13:50:58,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58 WrapperNode [2021-12-14 13:50:58,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 13:50:58,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 13:50:58,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 13:50:58,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 13:50:58,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,649 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2021-12-14 13:50:58,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 13:50:58,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 13:50:58,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 13:50:58,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 13:50:58,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 13:50:58,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 13:50:58,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 13:50:58,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 13:50:58,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (1/1) ... [2021-12-14 13:50:58,676 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 13:50:58,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:50:58,696 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) [2021-12-14 13:50:58,706 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 [2021-12-14 13:50:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 13:50:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 13:50:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 13:50:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 13:50:58,766 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 13:50:58,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 13:50:58,870 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 13:50:58,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 13:50:58,876 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 13:50:58,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:50:58 BoogieIcfgContainer [2021-12-14 13:50:58,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 13:50:58,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 13:50:58,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 13:50:58,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 13:50:58,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:50:58" (1/3) ... [2021-12-14 13:50:58,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201864ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:50:58, skipping insertion in model container [2021-12-14 13:50:58,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:50:58" (2/3) ... [2021-12-14 13:50:58,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201864ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:50:58, skipping insertion in model container [2021-12-14 13:50:58,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:50:58" (3/3) ... [2021-12-14 13:50:58,883 INFO L111 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2021-12-14 13:50:58,887 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 13:50:58,888 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 13:50:58,928 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 13:50:58,936 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 13:50:58,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 13:50:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) [2021-12-14 13:50:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-14 13:50:58,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:50:58,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:50:58,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:50:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:50:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1269629357, now seen corresponding path program 1 times [2021-12-14 13:50:58,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:50:58,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837376196] [2021-12-14 13:50:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:50:58,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:50:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:50:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:50:59,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:50:59,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837376196] [2021-12-14 13:50:59,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837376196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 13:50:59,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 13:50:59,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 13:50:59,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229888257] [2021-12-14 13:50:59,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:50:59,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 13:50:59,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:50:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 13:50:59,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 13:50:59,150 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-12-14 13:50:59,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:50:59,205 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-12-14 13:50:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 13:50:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2021-12-14 13:50:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:50:59,211 INFO L225 Difference]: With dead ends: 30 [2021-12-14 13:50:59,216 INFO L226 Difference]: Without dead ends: 12 [2021-12-14 13:50:59,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-14 13:50:59,222 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:50:59,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 41 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:50:59,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-14 13:50:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-14 13:50:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-12-14 13:50:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-12-14 13:50:59,246 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-12-14 13:50:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:50:59,246 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-12-14 13:50:59,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2021-12-14 13:50:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-12-14 13:50:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-14 13:50:59,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 13:50:59,248 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 13:50:59,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 13:50:59,249 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 13:50:59,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 13:50:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash 341011600, now seen corresponding path program 1 times [2021-12-14 13:50:59,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 13:50:59,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497344011] [2021-12-14 13:50:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:50:59,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 13:50:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:50:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:50:59,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 13:50:59,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497344011] [2021-12-14 13:50:59,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497344011] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 13:50:59,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976841223] [2021-12-14 13:50:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 13:50:59,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:50:59,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 13:50:59,313 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) [2021-12-14 13:50:59,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 13:50:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 13:50:59,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 13:50:59,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 13:50:59,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:50:59,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 13:50:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 13:50:59,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976841223] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-14 13:50:59,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-14 13:50:59,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 10 [2021-12-14 13:50:59,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520270001] [2021-12-14 13:50:59,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 13:50:59,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 13:50:59,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 13:50:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 13:50:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-14 13:50:59,623 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-12-14 13:50:59,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 13:50:59,654 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-12-14 13:50:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 13:50:59,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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 [2021-12-14 13:50:59,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 13:50:59,655 INFO L225 Difference]: With dead ends: 12 [2021-12-14 13:50:59,655 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 13:50:59,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-12-14 13:50:59,657 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 13:50:59,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 9 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 13:50:59,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 13:50:59,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 13:50:59,660 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) [2021-12-14 13:50:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 13:50:59,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-12-14 13:50:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 13:50:59,661 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 13:50:59,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2021-12-14 13:50:59,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 13:50:59,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 13:50:59,663 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-14 13:50:59,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 13:50:59,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 13:50:59,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 13:50:59,897 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 13:50:59,898 INFO L854 garLoopResultBuilder]: At program point L46(lines 33 67) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~main__y~0#1|) (< |ULTIMATE.start_main_~main__x~0#1| 0)) [2021-12-14 13:50:59,899 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 66) no Hoare annotation was computed. [2021-12-14 13:50:59,899 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 71) no Hoare annotation was computed. [2021-12-14 13:50:59,899 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 72) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2021-12-14 13:50:59,900 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 73) no Hoare annotation was computed. [2021-12-14 13:50:59,901 INFO L854 garLoopResultBuilder]: At program point L70(lines 14 74) the Hoare annotation is: (or (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 0)) (<= (+ |ULTIMATE.start_main_~main__x~0#1| 50) 0)) [2021-12-14 13:50:59,903 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-14 13:50:59,905 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 13:50:59,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:50:59 BoogieIcfgContainer [2021-12-14 13:50:59,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 13:50:59,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 13:50:59,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 13:50:59,915 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 13:50:59,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:50:58" (3/4) ... [2021-12-14 13:50:59,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 13:50:59,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-14 13:50:59,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-14 13:50:59,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-14 13:50:59,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 13:50:59,947 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 13:50:59,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 13:50:59,948 INFO L158 Benchmark]: Toolchain (without parser) took 1542.48ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 75.9MB in the end (delta: -4.9MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,948 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:50:59,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.84ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 77.3MB in the end (delta: -6.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.23ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,949 INFO L158 Benchmark]: Boogie Preprocessor took 13.75ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.2MB in the end (delta: 833.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 13:50:59,950 INFO L158 Benchmark]: RCFGBuilder took 213.61ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 66.0MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,950 INFO L158 Benchmark]: TraceAbstraction took 1035.74ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 45.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,950 INFO L158 Benchmark]: Witness Printer took 33.24ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 75.9MB in the end (delta: -30.3MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-12-14 13:50:59,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 79.7MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.84ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 77.3MB in the end (delta: -6.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.23ms. Allocated memory is still 100.7MB. Free memory was 77.3MB in the beginning and 76.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.75ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 75.2MB in the end (delta: 833.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.61ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 66.0MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1035.74ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 45.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 33.24ms. Allocated memory is still 100.7MB. Free memory was 45.6MB in the beginning and 75.9MB in the end (delta: -30.3MB). Peak memory consumption was 2.7MB. 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: 57]: 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 18 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 2 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 4 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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: 33]: Loop Invariant Derived loop invariant: 0 < main__y || main__x < 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) || main__x + 50 <= 0 RESULT: Ultimate proved your program to be correct! [2021-12-14 13:50:59,975 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