./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/nla-digbench-scaling/geo1-u_valuebound50.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 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 04:54:35,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 04:54:35,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 04:54:35,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 04:54:35,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 04:54:35,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 04:54:35,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 04:54:35,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 04:54:35,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 04:54:35,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 04:54:35,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 04:54:35,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 04:54:35,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 04:54:35,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 04:54:35,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 04:54:35,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 04:54:35,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 04:54:35,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 04:54:35,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 04:54:35,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 04:54:35,692 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 04:54:35,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 04:54:35,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 04:54:35,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 04:54:35,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 04:54:35,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 04:54:35,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 04:54:35,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 04:54:35,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 04:54:35,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 04:54:35,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 04:54:35,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 04:54:35,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 04:54:35,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 04:54:35,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 04:54:35,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 04:54:35,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 04:54:35,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 04:54:35,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 04:54:35,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 04:54:35,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 04:54:35,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 04:54:35,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 04:54:35,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 04:54:35,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 04:54:35,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 04:54:35,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 04:54:35,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 04:54:35,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 04:54:35,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 04:54:35,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 04:54:35,747 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 04:54:35,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 04:54:35,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 04:54:35,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 04:54:35,750 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 04:54:35,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 04:54:35,750 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 04:54:35,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 04:54:35,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 04:54:35,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 04:54:35,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 04:54:35,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 04:54:35,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 04:54:35,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 04:54:35,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 04:54:35,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 04:54:35,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 04:54:35,752 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 04:54:35,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 04:54:35,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 04:54:35,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f012d1196298e1f96209f85f7789e5e4a3317d14bda6693f5031f7a8a701f8 [2022-07-12 04:54:35,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 04:54:36,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 04:54:36,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 04:54:36,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 04:54:36,019 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 04:54:36,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2022-07-12 04:54:36,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d307d5d/33ace01ae6ee48d48b7981329d2bde01/FLAG918e3093d [2022-07-12 04:54:36,471 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 04:54:36,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound50.c [2022-07-12 04:54:36,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d307d5d/33ace01ae6ee48d48b7981329d2bde01/FLAG918e3093d [2022-07-12 04:54:36,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52d307d5d/33ace01ae6ee48d48b7981329d2bde01 [2022-07-12 04:54:36,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 04:54:36,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 04:54:36,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 04:54:36,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 04:54:36,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 04:54:36,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:54:36" (1/1) ... [2022-07-12 04:54:36,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f67f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:36, skipping insertion in model container [2022-07-12 04:54:36,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:54:36" (1/1) ... [2022-07-12 04:54:36,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 04:54:36,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 04:54:37,065 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/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2022-07-12 04:54:37,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 04:54:37,085 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 04:54:37,094 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/nla-digbench-scaling/geo1-u_valuebound50.c[555,568] [2022-07-12 04:54:37,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 04:54:37,108 INFO L208 MainTranslator]: Completed translation [2022-07-12 04:54:37,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37 WrapperNode [2022-07-12 04:54:37,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 04:54:37,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 04:54:37,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 04:54:37,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 04:54:37,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,142 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2022-07-12 04:54:37,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 04:54:37,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 04:54:37,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 04:54:37,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 04:54:37,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 04:54:37,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 04:54:37,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 04:54:37,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 04:54:37,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (1/1) ... [2022-07-12 04:54:37,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 04:54:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 04:54:37,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 04:54:37,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 04:54:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 04:54:37,259 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 04:54:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 04:54:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 04:54:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 04:54:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 04:54:37,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 04:54:37,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 04:54:37,300 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 04:54:37,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 04:54:37,398 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 04:54:37,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 04:54:37,403 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 04:54:37,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:54:37 BoogieIcfgContainer [2022-07-12 04:54:37,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 04:54:37,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 04:54:37,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 04:54:37,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 04:54:37,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:54:36" (1/3) ... [2022-07-12 04:54:37,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5725ae03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:54:37, skipping insertion in model container [2022-07-12 04:54:37,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:54:37" (2/3) ... [2022-07-12 04:54:37,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5725ae03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:54:37, skipping insertion in model container [2022-07-12 04:54:37,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:54:37" (3/3) ... [2022-07-12 04:54:37,421 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound50.c [2022-07-12 04:54:37,434 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 04:54:37,434 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 04:54:37,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 04:54:37,482 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26a58cc4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48d9651e [2022-07-12 04:54:37,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 04:54:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 04:54:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 04:54:37,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 04:54:37,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 04:54:37,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 04:54:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 04:54:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1975646755, now seen corresponding path program 1 times [2022-07-12 04:54:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 04:54:37,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374695037] [2022-07-12 04:54:37,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 04:54:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 04:54:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 04:54:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 04:54:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 04:54:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 04:54:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 04:54:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-12 04:54:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 04:54:37,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374695037] [2022-07-12 04:54:37,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374695037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 04:54:37,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 04:54:37,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 04:54:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782915337] [2022-07-12 04:54:37,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 04:54:37,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 04:54:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 04:54:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 04:54:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 04:54:37,752 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 04:54:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 04:54:37,775 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2022-07-12 04:54:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 04:54:37,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-07-12 04:54:37,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 04:54:37,785 INFO L225 Difference]: With dead ends: 47 [2022-07-12 04:54:37,785 INFO L226 Difference]: Without dead ends: 21 [2022-07-12 04:54:37,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 04:54:37,792 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 04:54:37,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 04:54:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-12 04:54:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-12 04:54:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-12 04:54:37,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-07-12 04:54:37,829 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 19 [2022-07-12 04:54:37,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 04:54:37,829 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-07-12 04:54:37,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 04:54:37,830 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-07-12 04:54:37,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-12 04:54:37,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 04:54:37,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 04:54:37,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 04:54:37,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 04:54:37,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 04:54:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1719515233, now seen corresponding path program 1 times [2022-07-12 04:54:37,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 04:54:37,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266757073] [2022-07-12 04:54:37,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 04:54:37,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 04:54:37,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 04:54:37,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207267279] [2022-07-12 04:54:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 04:54:37,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 04:54:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 04:54:37,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 04:54:37,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 04:54:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 04:54:37,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 04:54:37,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 04:54:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-12 04:54:38,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 04:54:38,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 04:54:38,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266757073] [2022-07-12 04:54:38,076 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 04:54:38,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207267279] [2022-07-12 04:54:38,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207267279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 04:54:38,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 04:54:38,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 04:54:38,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239604215] [2022-07-12 04:54:38,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 04:54:38,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 04:54:38,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 04:54:38,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 04:54:38,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 04:54:38,081 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 04:54:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 04:54:38,150 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-07-12 04:54:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 04:54:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-07-12 04:54:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 04:54:38,151 INFO L225 Difference]: With dead ends: 31 [2022-07-12 04:54:38,151 INFO L226 Difference]: Without dead ends: 29 [2022-07-12 04:54:38,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 04:54:38,153 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 04:54:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 68 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 04:54:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-12 04:54:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-07-12 04:54:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 20 states have internal predecessors, (20), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 04:54:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-07-12 04:54:38,160 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 19 [2022-07-12 04:54:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 04:54:38,161 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-07-12 04:54:38,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 04:54:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-07-12 04:54:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 04:54:38,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 04:54:38,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 04:54:38,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 04:54:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 04:54:38,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 04:54:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 04:54:38,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1670281901, now seen corresponding path program 1 times [2022-07-12 04:54:38,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 04:54:38,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720722515] [2022-07-12 04:54:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 04:54:38,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 04:54:38,391 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 04:54:38,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17156735] [2022-07-12 04:54:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 04:54:38,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 04:54:38,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 04:54:38,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 04:54:38,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 04:54:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 04:54:38,463 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 04:54:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 04:54:38,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 04:54:38,508 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 04:54:38,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 04:54:38,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 04:54:38,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 04:54:38,726 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-12 04:54:38,730 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 04:54:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 04:54:38 BoogieIcfgContainer [2022-07-12 04:54:38,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 04:54:38,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 04:54:38,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 04:54:38,749 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 04:54:38,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:54:37" (3/4) ... [2022-07-12 04:54:38,751 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 04:54:38,782 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 04:54:38,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 04:54:38,783 INFO L158 Benchmark]: Toolchain (without parser) took 1876.49ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 63.3MB in the beginning and 60.6MB in the end (delta: 2.7MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,783 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 04:54:38,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.38ms. Allocated memory is still 94.4MB. Free memory was 63.1MB in the beginning and 70.3MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.90ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,785 INFO L158 Benchmark]: Boogie Preprocessor took 37.38ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.9MB in the end (delta: 793.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,785 INFO L158 Benchmark]: RCFGBuilder took 222.72ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 58.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,786 INFO L158 Benchmark]: TraceAbstraction took 1342.21ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.3MB in the beginning and 62.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,786 INFO L158 Benchmark]: Witness Printer took 33.19ms. Allocated memory is still 113.2MB. Free memory was 62.7MB in the beginning and 60.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 04:54:38,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.38ms. Allocated memory is still 94.4MB. Free memory was 63.1MB in the beginning and 70.3MB in the end (delta: -7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.90ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 68.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.38ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.9MB in the end (delta: 793.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 222.72ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 58.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1342.21ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.3MB in the beginning and 62.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 33.19ms. Allocated memory is still 113.2MB. Free memory was 62.7MB in the beginning and 60.6MB 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 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] CALL assume_abort_if_not(z>=0 && z<=50) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L26] RET assume_abort_if_not(z>=0 && z<=50) VAL [z=0] [L27] k = __VERIFIER_nondet_uint() [L28] CALL assume_abort_if_not(k>=0 && k<=50) VAL [\old(cond)=1] [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L28] RET assume_abort_if_not(k>=0 && k<=50) VAL [k=0, z=0] [L30] x = 1 [L31] y = z [L32] c = 1 VAL [c=1, k=0, x=1, y=0, z=0] [L34] COND TRUE 1 VAL [c=1, k=0, x=1, y=0, z=0] [L35] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L35] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, k=0, x=1, y=0, z=0] [L37] COND TRUE !(c < k) VAL [c=1, k=0, x=1, y=0, z=0] [L46] x = x * (z - 1) VAL [c=1, k=0, x=4294967295, y=0, z=0] [L48] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 1 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-12 04:54:38,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE