./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array10_pattern.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-patterns/array10_pattern.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 0942a0394519a722254bfe5a1820a904a71ba1b47e3e66c2c8dc2abe6585692f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 10:06:57,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 10:06:57,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 10:06:57,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 10:06:57,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 10:06:57,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 10:06:57,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 10:06:57,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 10:06:57,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 10:06:57,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 10:06:57,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 10:06:57,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 10:06:57,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 10:06:57,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 10:06:57,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 10:06:57,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 10:06:57,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 10:06:57,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 10:06:57,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 10:06:57,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 10:06:57,092 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 10:06:57,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 10:06:57,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 10:06:57,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 10:06:57,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 10:06:57,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 10:06:57,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 10:06:57,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 10:06:57,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 10:06:57,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 10:06:57,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 10:06:57,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 10:06:57,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 10:06:57,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 10:06:57,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 10:06:57,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 10:06:57,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 10:06:57,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 10:06:57,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 10:06:57,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 10:06:57,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 10:06:57,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 10:06:57,106 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 10:06:57,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 10:06:57,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 10:06:57,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 10:06:57,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 10:06:57,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 10:06:57,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 10:06:57,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 10:06:57,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 10:06:57,132 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 10:06:57,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 10:06:57,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 10:06:57,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 10:06:57,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 10:06:57,134 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 10:06:57,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 10:06:57,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 10:06:57,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 10:06:57,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 10:06:57,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:06:57,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 10:06:57,136 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 10:06:57,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 10:06:57,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0942a0394519a722254bfe5a1820a904a71ba1b47e3e66c2c8dc2abe6585692f [2022-07-19 10:06:57,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 10:06:57,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 10:06:57,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 10:06:57,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 10:06:57,368 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 10:06:57,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array10_pattern.c [2022-07-19 10:06:57,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2507d2239/ebe9c78d94ab470e896a4cb390d0e8f9/FLAG5dc291a09 [2022-07-19 10:06:57,776 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 10:06:57,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array10_pattern.c [2022-07-19 10:06:57,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2507d2239/ebe9c78d94ab470e896a4cb390d0e8f9/FLAG5dc291a09 [2022-07-19 10:06:57,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2507d2239/ebe9c78d94ab470e896a4cb390d0e8f9 [2022-07-19 10:06:57,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 10:06:57,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 10:06:57,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 10:06:57,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 10:06:57,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 10:06:57,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:06:57" (1/1) ... [2022-07-19 10:06:57,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7137ddb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:57, skipping insertion in model container [2022-07-19 10:06:57,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:06:57" (1/1) ... [2022-07-19 10:06:57,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 10:06:57,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 10:06:57,952 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-patterns/array10_pattern.c[1326,1339] [2022-07-19 10:06:57,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:06:57,983 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 10:06:57,994 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-patterns/array10_pattern.c[1326,1339] [2022-07-19 10:06:58,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 10:06:58,009 INFO L208 MainTranslator]: Completed translation [2022-07-19 10:06:58,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58 WrapperNode [2022-07-19 10:06:58,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 10:06:58,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 10:06:58,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 10:06:58,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 10:06:58,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,051 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-07-19 10:06:58,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 10:06:58,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 10:06:58,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 10:06:58,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 10:06:58,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 10:06:58,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 10:06:58,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 10:06:58,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 10:06:58,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (1/1) ... [2022-07-19 10:06:58,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 10:06:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:06:58,110 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 10:06:58,111 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 10:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 10:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 10:06:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 10:06:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 10:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 10:06:58,178 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 10:06:58,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 10:06:58,280 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 10:06:58,284 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 10:06:58,284 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-19 10:06:58,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:06:58 BoogieIcfgContainer [2022-07-19 10:06:58,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 10:06:58,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 10:06:58,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 10:06:58,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 10:06:58,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:06:57" (1/3) ... [2022-07-19 10:06:58,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f95e008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:06:58, skipping insertion in model container [2022-07-19 10:06:58,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:06:58" (2/3) ... [2022-07-19 10:06:58,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f95e008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:06:58, skipping insertion in model container [2022-07-19 10:06:58,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:06:58" (3/3) ... [2022-07-19 10:06:58,292 INFO L111 eAbstractionObserver]: Analyzing ICFG array10_pattern.c [2022-07-19 10:06:58,301 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 10:06:58,301 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 10:06:58,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 10:06:58,385 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@671dc5ef, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5d8460a8 [2022-07-19 10:06:58,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 10:06:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:06:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 10:06:58,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:06:58,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:06:58,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:06:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:06:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1199380475, now seen corresponding path program 1 times [2022-07-19 10:06:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:06:58,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074704204] [2022-07-19 10:06:58,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:06:58,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:06:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:06:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 10:06:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:06:58,538 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 10:06:58,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:06:58,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074704204] [2022-07-19 10:06:58,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074704204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:06:58,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:06:58,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 10:06:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252580038] [2022-07-19 10:06:58,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:06:58,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 10:06:58,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:06:58,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 10:06:58,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 10:06:58,573 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:06:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:06:58,589 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-07-19 10:06:58,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 10:06:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-19 10:06:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:06:58,598 INFO L225 Difference]: With dead ends: 51 [2022-07-19 10:06:58,598 INFO L226 Difference]: Without dead ends: 23 [2022-07-19 10:06:58,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 10:06:58,603 INFO L413 NwaCegarLoop]: 31 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, 31 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 10:06:58,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 10:06:58,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-19 10:06:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-19 10:06:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:06:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-07-19 10:06:58,641 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2022-07-19 10:06:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:06:58,642 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-07-19 10:06:58,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 10:06:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-07-19 10:06:58,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 10:06:58,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:06:58,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 10:06:58,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 10:06:58,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:06:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:06:58,646 INFO L85 PathProgramCache]: Analyzing trace with hash 966180883, now seen corresponding path program 1 times [2022-07-19 10:06:58,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:06:58,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506391459] [2022-07-19 10:06:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:06:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:06:58,696 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 10:06:58,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306780229] [2022-07-19 10:06:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:06:58,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:06:58,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:06:58,699 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 10:06:58,700 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 10:06:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 10:06:58,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 10:06:58,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 10:06:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 10:06:58,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 10:06:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 10:06:58,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506391459] [2022-07-19 10:06:58,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 10:06:58,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306780229] [2022-07-19 10:06:58,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306780229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 10:06:58,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 10:06:58,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 10:06:58,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427640905] [2022-07-19 10:06:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 10:06:58,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 10:06:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 10:06:58,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 10:06:58,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 10:06:58,840 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:06:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 10:06:58,916 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2022-07-19 10:06:58,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 10:06:58,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-07-19 10:06:58,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 10:06:58,917 INFO L225 Difference]: With dead ends: 48 [2022-07-19 10:06:58,917 INFO L226 Difference]: Without dead ends: 31 [2022-07-19 10:06:58,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-07-19 10:06:58,918 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 10:06:58,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 10:06:58,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-19 10:06:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-07-19 10:06:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:06:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-07-19 10:06:58,924 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 24 [2022-07-19 10:06:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 10:06:58,924 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-07-19 10:06:58,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 10:06:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-07-19 10:06:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 10:06:58,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 10:06:58,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 10:06:58,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 10:06:59,139 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 [2022-07-19 10:06:59,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 10:06:59,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 10:06:59,140 INFO L85 PathProgramCache]: Analyzing trace with hash -760544265, now seen corresponding path program 1 times [2022-07-19 10:06:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 10:06:59,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13087597] [2022-07-19 10:06:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:06:59,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 10:06:59,161 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 10:06:59,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [644727526] [2022-07-19 10:06:59,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 10:06:59,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 10:06:59,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 10:06:59,164 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) [2022-07-19 10:06:59,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 10:06:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:06:59,288 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 10:06:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 10:06:59,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 10:06:59,326 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 10:06:59,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 10:06:59,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 10:06:59,545 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 [2022-07-19 10:06:59,548 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-19 10:06:59,551 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 10:06:59,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:06:59 BoogieIcfgContainer [2022-07-19 10:06:59,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 10:06:59,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 10:06:59,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 10:06:59,571 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 10:06:59,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:06:58" (3/4) ... [2022-07-19 10:06:59,573 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 10:06:59,600 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 10:06:59,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 10:06:59,601 INFO L158 Benchmark]: Toolchain (without parser) took 1790.59ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 73.3MB in the beginning and 105.9MB in the end (delta: -32.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-19 10:06:59,601 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 79.0MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:06:59,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 83.0MB in the end (delta: -10.0MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-07-19 10:06:59,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.11ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 81.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:06:59,602 INFO L158 Benchmark]: Boogie Preprocessor took 31.54ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:06:59,602 INFO L158 Benchmark]: RCFGBuilder took 199.62ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 68.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 10:06:59,603 INFO L158 Benchmark]: TraceAbstraction took 1283.70ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 67.8MB in the beginning and 108.0MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 10:06:59,603 INFO L158 Benchmark]: Witness Printer took 29.26ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 10:06:59,604 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 109.1MB. Free memory was 79.0MB in the beginning and 79.0MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.47ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 83.0MB in the end (delta: -10.0MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.11ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 81.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.54ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 199.62ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 68.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1283.70ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 67.8MB in the beginning and 108.0MB in the end (delta: -40.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.26ms. Allocated memory is still 148.9MB. Free memory was 108.0MB in the beginning and 105.9MB 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: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L37] signed long long ARR_SIZE ; VAL [ARR_SIZE=0] [L41] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L42] CALL assume_abort_if_not(ARR_SIZE > 0) VAL [\old(cond)=1, ARR_SIZE=1] [L31] COND FALSE !(!cond) VAL [\old(cond)=1, ARR_SIZE=1, cond=1] [L42] RET assume_abort_if_not(ARR_SIZE > 0) VAL [ARR_SIZE=1] [L44] int array1[ARR_SIZE] ; [L45] int array2[ARR_SIZE] ; [L46] int count = 0, num = -1 ; [L47] signed long long sum = 0 ; [L48] int temp ; [L49] signed long long index ; [L51] count=0 VAL [ARR_SIZE=1, array1={5:0}, array2={4:0}, count=0, num=-1, sum=0] [L51] COND TRUE count=0 && index < ARR_SIZE) VAL [\old(cond)=1, ARR_SIZE=1] [L31] COND FALSE !(!cond) VAL [\old(cond)=1, ARR_SIZE=1, cond=1] [L61] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) VAL [ARR_SIZE=1, array1={5:0}, array2={4:0}, count=1, index=0, num=-1, sum=0] [L63] array1[index] = num * (num * (num * (num *index))) VAL [ARR_SIZE=1, array1={5:0}, array2={4:0}, count=1, index=0, num=-1, sum=0] [L64] EXPR (index % 2 != 0) ? (num * index) : array2[index] [L64] EXPR array2[index] [L64] EXPR (index % 2 != 0) ? (num * index) : array2[index] VAL [(index % 2 != 0) ? (num * index) : array2[index]=0, ARR_SIZE=1, array1={5:0}, array2={4:0}, array2[index]=0, count=1, index=0, num=-1, sum=0] [L64] array2[index] = (index % 2 != 0) ? (num * index) : array2[index] [L67] temp = __VERIFIER_nondet_int() [L68] COND TRUE temp == 0 VAL [ARR_SIZE=1, array1={5:0}, array2={4:0}, count=1, index=0, num=-1, sum=0, temp=0] [L71] count=0 VAL [ARR_SIZE=1, array1={5:0}, array2={4:0}, count=0, index=0, num=-1, sum=0, temp=0] [L71] COND TRUE count