./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ss2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/array-fpi/ss2f.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 2bc09bd64500ce84828799e1b8f3bf98a7ee19cb7e359a47594550eda9829607 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:46:54,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:46:54,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:46:54,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:46:54,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:46:54,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:46:54,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:46:54,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:46:54,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:46:54,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:46:54,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:46:54,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:46:54,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:46:54,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:46:54,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:46:54,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:46:54,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:46:54,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:46:54,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:46:54,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:46:54,860 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:46:54,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:46:54,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:46:54,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:46:54,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:46:54,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:46:54,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:46:54,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:46:54,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:46:54,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:46:54,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:46:54,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:46:54,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:46:54,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:46:54,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:46:54,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:46:54,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:46:54,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:46:54,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:46:54,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:46:54,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:46:54,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:46:54,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:46:54,916 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:46:54,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:46:54,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:46:54,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:46:54,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:46:54,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:46:54,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:46:54,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:46:54,919 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:46:54,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:46:54,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:46:54,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:46:54,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:46:54,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:46:54,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:46:54,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:46:54,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:46:54,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:46:54,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:46:54,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:46:54,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:46:54,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:46:54,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:46:54,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:46:54,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:46:54,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:46:54,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:46:54,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:46:54,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bc09bd64500ce84828799e1b8f3bf98a7ee19cb7e359a47594550eda9829607 [2022-07-19 10:46:55,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:46:55,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:46:55,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:46:55,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:46:55,167 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:46:55,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss2f.c [2022-07-19 10:46:55,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdbc0fff/a4bca60084b5440bafaa8a033b11611e/FLAG2e5b88331 [2022-07-19 10:46:55,643 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:46:55,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2f.c [2022-07-19 10:46:55,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdbc0fff/a4bca60084b5440bafaa8a033b11611e/FLAG2e5b88331 [2022-07-19 10:46:56,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bdbc0fff/a4bca60084b5440bafaa8a033b11611e [2022-07-19 10:46:56,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:46:56,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:46:56,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:46:56,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:46:56,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:46:56,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164b865c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56, skipping insertion in model container [2022-07-19 10:46:56,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:46:56,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:46:56,186 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/array-fpi/ss2f.c[587,600] [2022-07-19 10:46:56,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:46:56,212 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:46:56,222 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/array-fpi/ss2f.c[587,600] [2022-07-19 10:46:56,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:46:56,242 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:46:56,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56 WrapperNode [2022-07-19 10:46:56,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:46:56,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:46:56,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:46:56,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:46:56,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,274 INFO L137 Inliner]: procedures = 17, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 126 [2022-07-19 10:46:56,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:46:56,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:46:56,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:46:56,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:46:56,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:46:56,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:46:56,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:46:56,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:46:56,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (1/1) ... [2022-07-19 10:46:56,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:46:56,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:46:56,334 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) [2022-07-19 10:46:56,336 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 [2022-07-19 10:46:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:46:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:46:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 10:46:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 10:46:56,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 10:46:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:46:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:46:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 10:46:56,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 10:46:56,414 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:46:56,416 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:46:56,542 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:46:56,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:46:56,548 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-19 10:46:56,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:46:56 BoogieIcfgContainer [2022-07-19 10:46:56,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:46:56,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:46:56,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:46:56,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:46:56,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:46:56" (1/3) ... [2022-07-19 10:46:56,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cbb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:46:56, skipping insertion in model container [2022-07-19 10:46:56,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:56" (2/3) ... [2022-07-19 10:46:56,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cbb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:46:56, skipping insertion in model container [2022-07-19 10:46:56,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:46:56" (3/3) ... [2022-07-19 10:46:56,557 INFO L111 eAbstractionObserver]: Analyzing ICFG ss2f.c [2022-07-19 10:46:56,569 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:46:56,570 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:46:56,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:46:56,631 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@23749756, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@747b3fc6 [2022-07-19 10:46:56,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:46:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 10:46:56,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:46:56,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:46:56,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:46:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:46:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash -642180410, now seen corresponding path program 1 times [2022-07-19 10:46:56,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:46:56,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922773844] [2022-07-19 10:46:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:46:56,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:46:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:46:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:46:56,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:46:56,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922773844] [2022-07-19 10:46:56,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922773844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:46:56,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:46:56,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 10:46:56,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108032455] [2022-07-19 10:46:56,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:46:56,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 10:46:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:46:56,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 10:46:56,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:46:56,888 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:46:56,907 INFO L93 Difference]: Finished difference Result 62 states and 92 transitions. [2022-07-19 10:46:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 10:46:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 10:46:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:46:56,917 INFO L225 Difference]: With dead ends: 62 [2022-07-19 10:46:56,918 INFO L226 Difference]: Without dead ends: 29 [2022-07-19 10:46:56,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:46:56,932 INFO L413 NwaCegarLoop]: 40 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, 40 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 [2022-07-19 10:46:56,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:46:56,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-19 10:46:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-19 10:46:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-19 10:46:56,958 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 20 [2022-07-19 10:46:56,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:46:56,958 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-19 10:46:56,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-07-19 10:46:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 10:46:56,959 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:46:56,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:46:56,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:46:56,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:46:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:46:56,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1011332042, now seen corresponding path program 1 times [2022-07-19 10:46:56,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:46:56,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217117556] [2022-07-19 10:46:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:46:56,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:46:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:46:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:46:57,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:46:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217117556] [2022-07-19 10:46:57,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217117556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:46:57,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:46:57,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 10:46:57,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850038022] [2022-07-19 10:46:57,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:46:57,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 10:46:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:46:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 10:46:57,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:46:57,107 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:46:57,229 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2022-07-19 10:46:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 10:46:57,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 10:46:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:46:57,231 INFO L225 Difference]: With dead ends: 69 [2022-07-19 10:46:57,231 INFO L226 Difference]: Without dead ends: 47 [2022-07-19 10:46:57,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 10:46:57,233 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 53 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:46:57,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 19 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:46:57,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-19 10:46:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2022-07-19 10:46:57,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-07-19 10:46:57,241 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 20 [2022-07-19 10:46:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:46:57,241 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-07-19 10:46:57,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 10:46:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-07-19 10:46:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 10:46:57,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:46:57,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:46:57,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 10:46:57,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:46:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:46:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1890076394, now seen corresponding path program 1 times [2022-07-19 10:46:57,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:46:57,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984070639] [2022-07-19 10:46:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:46:57,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:46:57,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 10:46:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573294350] [2022-07-19 10:46:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:46:57,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:46:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:46:57,286 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) [2022-07-19 10:46:57,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 10:46:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:46:57,371 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:46:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:46:57,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:46:57,421 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:46:57,422 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:46:57,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 10:46:57,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:46:57,634 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 10:46:57,637 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:46:57,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:46:57 BoogieIcfgContainer [2022-07-19 10:46:57,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:46:57,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:46:57,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:46:57,668 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:46:57,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:46:56" (3/4) ... [2022-07-19 10:46:57,670 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:46:57,740 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:46:57,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:46:57,747 INFO L158 Benchmark]: Toolchain (without parser) took 1721.36ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 54.0MB in the end (delta: 10.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,748 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 100.7MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:46:57,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.55ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 76.9MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.91ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 74.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,749 INFO L158 Benchmark]: Boogie Preprocessor took 24.34ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:46:57,749 INFO L158 Benchmark]: RCFGBuilder took 249.91ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 61.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,749 INFO L158 Benchmark]: TraceAbstraction took 1116.15ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 57.2MB in the end (delta: 3.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,750 INFO L158 Benchmark]: Witness Printer took 78.13ms. Allocated memory is still 100.7MB. Free memory was 57.2MB in the beginning and 54.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:46:57,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 100.7MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.55ms. Allocated memory is still 100.7MB. Free memory was 64.5MB in the beginning and 76.9MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.91ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 74.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.34ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.91ms. Allocated memory is still 100.7MB. Free memory was 73.6MB in the beginning and 61.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1116.15ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 57.2MB in the end (delta: 3.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 78.13ms. Allocated memory is still 100.7MB. Free memory was 57.2MB in the beginning and 54.0MB in the end (delta: 3.2MB). 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [a={4:0}, i=0, N=1, sum={6:0}] [L32] COND TRUE i