./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/ms1f.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-fpi/ms1f.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 6d53d0c5140132772dbe7b2411a0e5f61e1871ba1484fe3a275622a831eef23f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:13:01,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:13:01,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:13:01,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:13:01,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:13:01,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:13:01,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:13:01,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:13:01,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:13:01,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:13:01,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:13:01,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:13:01,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:13:01,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:13:01,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:13:01,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:13:01,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:13:01,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:13:01,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:13:01,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:13:01,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:13:01,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:13:01,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:13:01,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:13:01,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:13:01,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:13:01,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:13:01,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:13:01,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:13:01,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:13:01,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:13:01,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:13:01,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:13:01,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:13:01,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:13:01,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:13:01,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:13:01,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:13:01,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:13:01,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:13:01,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:13:01,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:13:01,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:13:01,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:13:01,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:13:01,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:13:01,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:13:01,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:13:01,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:13:01,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:13:01,589 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:13:01,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:13:01,590 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:13:01,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:13:01,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:13:01,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:13:01,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:13:01,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:13:01,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:13:01,592 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:13:01,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:13:01,592 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:13:01,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:13:01,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:13:01,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:13:01,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:13:01,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:13:01,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:13:01,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:13:01,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:13:01,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:13:01,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:13:01,595 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:13:01,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:13:01,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:13:01,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:13:01,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d53d0c5140132772dbe7b2411a0e5f61e1871ba1484fe3a275622a831eef23f [2021-12-21 10:13:01,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:13:01,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:13:01,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:13:01,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:13:01,820 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:13:01,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms1f.c [2021-12-21 10:13:01,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2b46dc1/528a25a8f7a64668afc9efb29fb7798d/FLAG5d5239f21 [2021-12-21 10:13:02,220 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:13:02,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms1f.c [2021-12-21 10:13:02,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2b46dc1/528a25a8f7a64668afc9efb29fb7798d/FLAG5d5239f21 [2021-12-21 10:13:02,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e2b46dc1/528a25a8f7a64668afc9efb29fb7798d [2021-12-21 10:13:02,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:13:02,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:13:02,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:13:02,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:13:02,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:13:02,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4122fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02, skipping insertion in model container [2021-12-21 10:13:02,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:13:02,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:13:02,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms1f.c[587,600] [2021-12-21 10:13:02,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:13:02,415 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:13:02,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms1f.c[587,600] [2021-12-21 10:13:02,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:13:02,453 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:13:02,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02 WrapperNode [2021-12-21 10:13:02,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:13:02,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:13:02,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:13:02,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:13:02,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,476 INFO L137 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-21 10:13:02,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:13:02,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:13:02,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:13:02,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:13:02,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:13:02,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:13:02,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:13:02,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:13:02,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (1/1) ... [2021-12-21 10:13:02,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:13:02,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:13:02,535 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 10:13:02,549 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 10:13:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:13:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:13:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 10:13:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 10:13:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 10:13:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:13:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:13:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 10:13:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 10:13:02,634 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:13:02,635 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:13:02,804 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 10:13:02,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 10:13:02,809 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 10:13:02,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:13:02 BoogieIcfgContainer [2021-12-21 10:13:02,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 10:13:02,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 10:13:02,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 10:13:02,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 10:13:02,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:13:02" (1/3) ... [2021-12-21 10:13:02,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31742b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:13:02, skipping insertion in model container [2021-12-21 10:13:02,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:13:02" (2/3) ... [2021-12-21 10:13:02,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31742b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:13:02, skipping insertion in model container [2021-12-21 10:13:02,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:13:02" (3/3) ... [2021-12-21 10:13:02,818 INFO L111 eAbstractionObserver]: Analyzing ICFG ms1f.c [2021-12-21 10:13:02,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 10:13:02,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 10:13:02,899 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 10:13:02,908 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 10:13:02,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 10:13:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 10:13:02,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:13:02,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:13:02,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:13:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:13:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 356661439, now seen corresponding path program 1 times [2021-12-21 10:13:02,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:13:02,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965470352] [2021-12-21 10:13:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:13:02,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:13:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:13:03,097 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 10:13:03,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:13:03,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965470352] [2021-12-21 10:13:03,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965470352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:13:03,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:13:03,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 10:13:03,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809187713] [2021-12-21 10:13:03,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:13:03,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 10:13:03,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:13:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 10:13:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 10:13:03,167 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:13:03,182 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-12-21 10:13:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 10:13:03,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-21 10:13:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:13:03,190 INFO L225 Difference]: With dead ends: 34 [2021-12-21 10:13:03,190 INFO L226 Difference]: Without dead ends: 15 [2021-12-21 10:13:03,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 10:13:03,196 INFO L933 BasicCegarLoop]: 22 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, 22 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 10:13:03,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:13:03,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-21 10:13:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-21 10:13:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-21 10:13:03,233 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2021-12-21 10:13:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:13:03,234 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-21 10:13:03,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-12-21 10:13:03,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 10:13:03,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:13:03,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:13:03,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 10:13:03,237 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:13:03,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:13:03,242 INFO L85 PathProgramCache]: Analyzing trace with hash -452685187, now seen corresponding path program 1 times [2021-12-21 10:13:03,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:13:03,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152877674] [2021-12-21 10:13:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:13:03,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:13:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:13:03,328 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 10:13:03,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:13:03,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152877674] [2021-12-21 10:13:03,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152877674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:13:03,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:13:03,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 10:13:03,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005755821] [2021-12-21 10:13:03,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:13:03,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 10:13:03,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:13:03,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 10:13:03,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 10:13:03,332 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:13:03,367 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-12-21 10:13:03,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 10:13:03,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-21 10:13:03,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:13:03,368 INFO L225 Difference]: With dead ends: 28 [2021-12-21 10:13:03,368 INFO L226 Difference]: Without dead ends: 20 [2021-12-21 10:13:03,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-21 10:13:03,370 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:13:03,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 11 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:13:03,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-21 10:13:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-21 10:13:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-12-21 10:13:03,375 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2021-12-21 10:13:03,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:13:03,376 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-12-21 10:13:03,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 10:13:03,376 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-12-21 10:13:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-21 10:13:03,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:13:03,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:13:03,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 10:13:03,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:13:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:13:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash 623611495, now seen corresponding path program 1 times [2021-12-21 10:13:03,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:13:03,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190362529] [2021-12-21 10:13:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:13:03,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:13:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:13:03,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 10:13:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:13:03,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 10:13:03,471 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 10:13:03,471 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 10:13:03,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 10:13:03,475 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 10:13:03,477 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 10:13:03,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:13:03 BoogieIcfgContainer [2021-12-21 10:13:03,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 10:13:03,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 10:13:03,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 10:13:03,499 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 10:13:03,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:13:02" (3/4) ... [2021-12-21 10:13:03,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 10:13:03,534 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 10:13:03,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 10:13:03,535 INFO L158 Benchmark]: Toolchain (without parser) took 1292.90ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 72.3MB in the beginning and 78.2MB in the end (delta: -5.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,536 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:13:03,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.25ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 76.4MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.82ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,537 INFO L158 Benchmark]: Boogie Preprocessor took 20.20ms. Allocated memory is still 100.7MB. Free memory was 74.7MB in the beginning and 73.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,538 INFO L158 Benchmark]: RCFGBuilder took 313.00ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 63.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,538 INFO L158 Benchmark]: TraceAbstraction took 686.15ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 62.5MB in the beginning and 80.7MB in the end (delta: -18.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,539 INFO L158 Benchmark]: Witness Printer took 35.54ms. Allocated memory is still 121.6MB. Free memory was 80.3MB in the beginning and 78.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:13:03,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 59.7MB in the beginning and 59.7MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.25ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 76.4MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.82ms. Allocated memory is still 100.7MB. Free memory was 76.4MB in the beginning and 74.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.20ms. Allocated memory is still 100.7MB. Free memory was 74.7MB in the beginning and 73.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.00ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 63.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 686.15ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 62.5MB in the beginning and 80.7MB in the end (delta: -18.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 35.54ms. Allocated memory is still 121.6MB. Free memory was 80.3MB in the beginning and 78.2MB 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={8:0}] [L31] COND TRUE i