./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 a31fd051 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-?-a31fd05 [2023-02-15 11:05:01,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 11:05:01,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 11:05:01,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 11:05:01,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 11:05:01,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 11:05:01,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 11:05:01,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 11:05:01,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 11:05:01,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 11:05:01,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 11:05:01,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 11:05:01,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 11:05:01,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 11:05:01,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 11:05:01,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 11:05:01,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 11:05:01,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 11:05:01,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 11:05:01,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 11:05:01,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 11:05:01,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 11:05:01,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 11:05:01,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 11:05:01,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 11:05:01,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 11:05:01,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 11:05:01,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 11:05:01,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 11:05:01,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 11:05:01,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 11:05:01,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 11:05:01,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 11:05:01,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 11:05:01,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 11:05:01,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 11:05:01,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 11:05:01,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 11:05:01,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 11:05:01,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 11:05:01,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 11:05:01,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 11:05:01,146 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 11:05:01,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 11:05:01,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 11:05:01,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 11:05:01,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 11:05:01,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 11:05:01,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 11:05:01,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 11:05:01,155 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 11:05:01,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 11:05:01,156 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 11:05:01,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 11:05:01,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 11:05:01,158 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 11:05:01,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 11:05:01,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 11:05:01,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 11:05:01,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 11:05:01,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:05:01,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 11:05:01,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 11:05:01,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 11:05:01,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 11:05:01,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 11:05:01,160 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f79720b54b4b9430b2efff386b59c4cac88edea0ef8f0ba223c5daccad25b87 [2023-02-15 11:05:01,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 11:05:01,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 11:05:01,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 11:05:01,361 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 11:05:01,361 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 11:05:01,362 INFO L432 ainManager$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 [2023-02-15 11:05:02,293 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 11:05:02,431 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 11:05:02,431 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2023-02-15 11:05:02,435 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca165c88c/e99f21f460b64f89901fa02d94da03ed/FLAGd46ad9899 [2023-02-15 11:05:02,447 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca165c88c/e99f21f460b64f89901fa02d94da03ed [2023-02-15 11:05:02,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 11:05:02,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 11:05:02,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 11:05:02,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 11:05:02,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 11:05:02,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431e2e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02, skipping insertion in model container [2023-02-15 11:05:02,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 11:05:02,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 11:05:02,602 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2023-02-15 11:05:02,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:05:02,613 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 11:05:02,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2023-02-15 11:05:02,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:05:02,638 INFO L208 MainTranslator]: Completed translation [2023-02-15 11:05:02,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02 WrapperNode [2023-02-15 11:05:02,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 11:05:02,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 11:05:02,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 11:05:02,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 11:05:02,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,661 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-02-15 11:05:02,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 11:05:02,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 11:05:02,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 11:05:02,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 11:05:02,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 11:05:02,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 11:05:02,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 11:05:02,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 11:05:02,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (1/1) ... [2023-02-15 11:05:02,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:05:02,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 11:05:02,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 11:05:02,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 11:05:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 11:05:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 11:05:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 11:05:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 11:05:02,788 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 11:05:02,790 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 11:05:02,870 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 11:05:02,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 11:05:02,874 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 11:05:02,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:05:02 BoogieIcfgContainer [2023-02-15 11:05:02,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 11:05:02,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 11:05:02,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 11:05:02,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 11:05:02,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:05:02" (1/3) ... [2023-02-15 11:05:02,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28801904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:05:02, skipping insertion in model container [2023-02-15 11:05:02,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:05:02" (2/3) ... [2023-02-15 11:05:02,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28801904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:05:02, skipping insertion in model container [2023-02-15 11:05:02,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:05:02" (3/3) ... [2023-02-15 11:05:02,881 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2023-02-15 11:05:02,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 11:05:02,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 11:05:02,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 11:05:02,926 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@508ca8e8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 11:05:02,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 11:05:02,930 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) [2023-02-15 11:05:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 11:05:02,935 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:05:02,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:05:02,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:05:02,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:05:02,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1269629357, now seen corresponding path program 1 times [2023-02-15 11:05:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:05:02,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775189992] [2023-02-15 11:05:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:05:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:05:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:05:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:05:03,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:05:03,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775189992] [2023-02-15 11:05:03,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775189992] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:05:03,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:05:03,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 11:05:03,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904774363] [2023-02-15 11:05:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:05:03,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 11:05:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:05:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 11:05:03,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:05:03,220 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) [2023-02-15 11:05:03,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:05:03,297 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2023-02-15 11:05:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 11:05:03,299 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 [2023-02-15 11:05:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:05:03,304 INFO L225 Difference]: With dead ends: 30 [2023-02-15 11:05:03,304 INFO L226 Difference]: Without dead ends: 12 [2023-02-15 11:05:03,306 INFO L412 NwaCegarLoop]: 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 [2023-02-15 11:05:03,308 INFO L413 NwaCegarLoop]: 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 [2023-02-15 11:05:03,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 41 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:05:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-15 11:05:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-15 11:05:03,329 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) [2023-02-15 11:05:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-02-15 11:05:03,330 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2023-02-15 11:05:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:05:03,331 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-02-15 11:05:03,331 INFO L496 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) [2023-02-15 11:05:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-02-15 11:05:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 11:05:03,332 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:05:03,333 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:05:03,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 11:05:03,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:05:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:05:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash 341011600, now seen corresponding path program 1 times [2023-02-15 11:05:03,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:05:03,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881349003] [2023-02-15 11:05:03,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:05:03,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:05:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:05:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:05:03,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:05:03,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881349003] [2023-02-15 11:05:03,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881349003] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 11:05:03,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069044822] [2023-02-15 11:05:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:05:03,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 11:05:03,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 11:05:03,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 11:05:03,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 11:05:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:05:03,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 11:05:03,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 11:05:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:05:03,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 11:05:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:05:03,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069044822] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-15 11:05:03,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-15 11:05:03,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 10 [2023-02-15 11:05:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294118211] [2023-02-15 11:05:03,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:05:03,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 11:05:03,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:05:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 11:05:03,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-02-15 11:05:03,684 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) [2023-02-15 11:05:03,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:05:03,725 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-02-15 11:05:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 11:05:03,726 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 [2023-02-15 11:05:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:05:03,726 INFO L225 Difference]: With dead ends: 12 [2023-02-15 11:05:03,726 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 11:05:03,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-02-15 11:05:03,728 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 11:05:03,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:05:03,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 11:05:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 11:05:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:05:03,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 11:05:03,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-02-15 11:05:03,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:05:03,730 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 11:05:03,730 INFO L496 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) [2023-02-15 11:05:03,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 11:05:03,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 11:05:03,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 11:05:03,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 11:05:03,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 11:05:03,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 11:05:03,962 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 11:05:03,963 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 11:05:03,974 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(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)) [2023-02-15 11:05:03,975 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 66) no Hoare annotation was computed. [2023-02-15 11:05:03,975 INFO L895 garLoopResultBuilder]: At program point L38(lines 33 67) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~main__y~0#1|) (< |ULTIMATE.start_main_~main__x~0#1| 0)) [2023-02-15 11:05:03,975 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 71) no Hoare annotation was computed. [2023-02-15 11:05:03,975 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 72) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2023-02-15 11:05:03,976 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 73) no Hoare annotation was computed. [2023-02-15 11:05:03,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 11:05:03,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 11:05:03,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:05:03 BoogieIcfgContainer [2023-02-15 11:05:03,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 11:05:03,993 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 11:05:03,993 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 11:05:03,994 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 11:05:03,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:05:02" (3/4) ... [2023-02-15 11:05:04,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 11:05:04,013 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-15 11:05:04,013 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 11:05:04,013 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 11:05:04,022 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 11:05:04,062 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 11:05:04,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 11:05:04,067 INFO L158 Benchmark]: Toolchain (without parser) took 1616.99ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 111.8MB in the beginning and 152.1MB in the end (delta: -40.3MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,069 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:05:04,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.54ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 101.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.95ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 99.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,083 INFO L158 Benchmark]: Boogie Preprocessor took 23.70ms. Allocated memory is still 159.4MB. Free memory was 99.9MB in the beginning and 98.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,084 INFO L158 Benchmark]: RCFGBuilder took 189.66ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 88.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,084 INFO L158 Benchmark]: TraceAbstraction took 1115.64ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 88.0MB in the beginning and 154.2MB in the end (delta: -66.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:05:04,084 INFO L158 Benchmark]: Witness Printer took 73.06ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 152.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:05:04,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.54ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 101.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.95ms. Allocated memory is still 159.4MB. Free memory was 101.3MB in the beginning and 99.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.70ms. Allocated memory is still 159.4MB. Free memory was 99.9MB in the beginning and 98.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 189.66ms. Allocated memory is still 159.4MB. Free memory was 98.5MB in the beginning and 88.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1115.64ms. Allocated memory was 159.4MB in the beginning and 205.5MB in the end (delta: 46.1MB). Free memory was 88.0MB in the beginning and 154.2MB in the end (delta: -66.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.06ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 152.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 18 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 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, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 34 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, 171 SizeOfPredicates, 5 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 12 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: 14]: Loop Invariant Derived loop invariant: !(__VERIFIER_assert__cond == 0) || main__x + 50 <= 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 < main__y || main__x < 0 RESULT: Ultimate proved your program to be correct! [2023-02-15 11:05:04,101 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