./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 ff03de63 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-dev-ff03de6 [2021-12-21 10:04:57,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:04:57,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:04:57,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:04:57,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:04:57,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:04:57,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:04:57,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:04:57,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:04:57,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:04:57,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:04:57,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:04:57,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:04:57,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:04:57,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:04:57,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:04:57,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:04:57,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:04:57,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:04:57,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:04:57,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:04:57,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:04:57,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:04:57,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:04:57,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:04:57,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:04:57,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:04:57,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:04:57,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:04:57,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:04:57,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:04:57,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:04:57,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:04:57,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:04:57,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:04:57,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:04:57,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:04:57,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:04:57,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:04:57,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:04:57,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:04:57,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:04:57,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:04:57,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:04:57,646 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:04:57,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:04:57,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:04:57,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:04:57,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:04:57,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:04:57,647 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:04:57,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:04:57,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:04:57,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:04:57,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:04:57,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:04:57,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:04:57,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:04:57,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:04:57,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:04:57,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:04:57,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:04:57,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:04:57,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:04:57,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:04:57,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:04:57,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:04:57,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:04:57,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:04:57,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0942a0394519a722254bfe5a1820a904a71ba1b47e3e66c2c8dc2abe6585692f [2021-12-21 10:04:57,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:04:57,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:04:57,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:04:57,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:04:57,870 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:04:57,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array10_pattern.c [2021-12-21 10:04:57,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e44284/a77f8a460ea148b9af31944242f6d627/FLAG5296ffbed [2021-12-21 10:04:58,303 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:04:58,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array10_pattern.c [2021-12-21 10:04:58,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e44284/a77f8a460ea148b9af31944242f6d627/FLAG5296ffbed [2021-12-21 10:04:58,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e44284/a77f8a460ea148b9af31944242f6d627 [2021-12-21 10:04:58,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:04:58,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:04:58,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:04:58,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:04:58,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:04:58,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755492ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58, skipping insertion in model container [2021-12-21 10:04:58,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:04:58,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:04:58,484 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] [2021-12-21 10:04:58,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:04:58,535 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:04:58,545 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] [2021-12-21 10:04:58,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:04:58,561 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:04:58,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58 WrapperNode [2021-12-21 10:04:58,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:04:58,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:04:58,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:04:58,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:04:58,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,600 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2021-12-21 10:04:58,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:04:58,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:04:58,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:04:58,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:04:58,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:04:58,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:04:58,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:04:58,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:04:58,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (1/1) ... [2021-12-21 10:04:58,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:04:58,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:04:58,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 10:04:58,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 10:04:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:04:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 10:04:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 10:04:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:04:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 10:04:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 10:04:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:04:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:04:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 10:04:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 10:04:58,744 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:04:58,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:04:59,002 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 10:04:59,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 10:04:59,008 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-21 10:04:59,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:59 BoogieIcfgContainer [2021-12-21 10:04:59,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 10:04:59,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 10:04:59,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 10:04:59,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 10:04:59,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:04:58" (1/3) ... [2021-12-21 10:04:59,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48138ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:04:59, skipping insertion in model container [2021-12-21 10:04:59,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:04:58" (2/3) ... [2021-12-21 10:04:59,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48138ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:04:59, skipping insertion in model container [2021-12-21 10:04:59,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:59" (3/3) ... [2021-12-21 10:04:59,025 INFO L111 eAbstractionObserver]: Analyzing ICFG array10_pattern.c [2021-12-21 10:04:59,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 10:04:59,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 10:04:59,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 10:04:59,086 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 10:04:59,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 10:04:59,100 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) [2021-12-21 10:04:59,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-21 10:04:59,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:04:59,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:04:59,105 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:04:59,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:04:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1199380475, now seen corresponding path program 1 times [2021-12-21 10:04:59,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:04:59,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541715552] [2021-12-21 10:04:59,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:04:59,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:04:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:04:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:04:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:04:59,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:04:59,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:04:59,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541715552] [2021-12-21 10:04:59,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541715552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:04:59,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:04:59,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:04:59,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879356749] [2021-12-21 10:04:59,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:04:59,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 10:04:59,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:04:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 10:04:59,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 10:04:59,328 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) [2021-12-21 10:04:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:04:59,344 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2021-12-21 10:04:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 10:04:59,346 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 [2021-12-21 10:04:59,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:04:59,351 INFO L225 Difference]: With dead ends: 51 [2021-12-21 10:04:59,352 INFO L226 Difference]: Without dead ends: 23 [2021-12-21 10:04:59,355 INFO L932 BasicCegarLoop]: 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 [2021-12-21 10:04:59,359 INFO L933 BasicCegarLoop]: 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 [2021-12-21 10:04:59,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:04:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-21 10:04:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-21 10:04:59,385 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) [2021-12-21 10:04:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-21 10:04:59,387 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2021-12-21 10:04:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:04:59,387 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-21 10:04:59,387 INFO L471 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) [2021-12-21 10:04:59,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-21 10:04:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 10:04:59,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:04:59,389 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:04:59,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 10:04:59,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:04:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:04:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash 966180883, now seen corresponding path program 1 times [2021-12-21 10:04:59,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:04:59,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287026211] [2021-12-21 10:04:59,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:04:59,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:04:59,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 10:04:59,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671217832] [2021-12-21 10:04:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:04:59,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:04:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:04:59,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 10:04:59,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 10:04:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:04:59,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-21 10:04:59,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:04:59,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 10:04:59,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 10:04:59,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:04:59,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287026211] [2021-12-21 10:04:59,651 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-21 10:04:59,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671217832] [2021-12-21 10:04:59,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671217832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:04:59,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:04:59,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 10:04:59,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541278672] [2021-12-21 10:04:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:04:59,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 10:04:59,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:04:59,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 10:04:59,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 10:04:59,654 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) [2021-12-21 10:04:59,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:04:59,714 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2021-12-21 10:04:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 10:04:59,714 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 [2021-12-21 10:04:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:04:59,715 INFO L225 Difference]: With dead ends: 48 [2021-12-21 10:04:59,715 INFO L226 Difference]: Without dead ends: 31 [2021-12-21 10:04:59,715 INFO L932 BasicCegarLoop]: 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 [2021-12-21 10:04:59,716 INFO L933 BasicCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:04:59,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:04:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-21 10:04:59,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-21 10:04:59,721 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) [2021-12-21 10:04:59,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-12-21 10:04:59,722 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 24 [2021-12-21 10:04:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:04:59,722 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-12-21 10:04:59,722 INFO L471 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) [2021-12-21 10:04:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-12-21 10:04:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 10:04:59,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:04:59,723 INFO L514 BasicCegarLoop]: 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] [2021-12-21 10:04:59,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 10:04:59,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:04:59,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:04:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:04:59,942 INFO L85 PathProgramCache]: Analyzing trace with hash -760544265, now seen corresponding path program 1 times [2021-12-21 10:04:59,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:04:59,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728808840] [2021-12-21 10:04:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:04:59,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:04:59,962 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-21 10:04:59,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033195497] [2021-12-21 10:04:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:04:59,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:04:59,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:04:59,982 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) [2021-12-21 10:04:59,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 10:05:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:05:00,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 10:05:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:05:00,117 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 10:05:00,117 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 10:05:00,118 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 10:05:00,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 10:05:00,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-21 10:05:00,323 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 10:05:00,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 10:05:00,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:05:00 BoogieIcfgContainer [2021-12-21 10:05:00,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 10:05:00,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 10:05:00,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 10:05:00,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 10:05:00,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:04:59" (3/4) ... [2021-12-21 10:05:00,352 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 10:05:00,384 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 10:05:00,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 10:05:00,385 INFO L158 Benchmark]: Toolchain (without parser) took 2057.24ms. Allocated memory is still 148.9MB. Free memory was 117.5MB in the beginning and 101.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,386 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:05:00,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.92ms. Allocated memory is still 148.9MB. Free memory was 117.1MB in the beginning and 122.1MB in the end (delta: -5.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.21ms. Allocated memory is still 148.9MB. Free memory was 122.1MB in the beginning and 120.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,387 INFO L158 Benchmark]: Boogie Preprocessor took 23.40ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,387 INFO L158 Benchmark]: RCFGBuilder took 383.57ms. Allocated memory is still 148.9MB. Free memory was 119.1MB in the beginning and 107.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,387 INFO L158 Benchmark]: TraceAbstraction took 1340.20ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 104.3MB in the end (delta: 2.7MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,388 INFO L158 Benchmark]: Witness Printer took 34.29ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 10:05:00,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 42.0MB in the beginning and 41.9MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.92ms. Allocated memory is still 148.9MB. Free memory was 117.1MB in the beginning and 122.1MB in the end (delta: -5.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.21ms. Allocated memory is still 148.9MB. Free memory was 122.1MB in the beginning and 120.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.40ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 119.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.57ms. Allocated memory is still 148.9MB. Free memory was 119.1MB in the beginning and 107.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1340.20ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 104.3MB in the end (delta: 2.7MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 34.29ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. 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