./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/locks/test_locks_14-2.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 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 21:59:22,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 21:59:22,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 21:59:22,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 21:59:22,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 21:59:22,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 21:59:22,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 21:59:22,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 21:59:22,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 21:59:22,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 21:59:22,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 21:59:22,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 21:59:22,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 21:59:22,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 21:59:22,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 21:59:22,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 21:59:22,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 21:59:22,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 21:59:22,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 21:59:22,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 21:59:22,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 21:59:22,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 21:59:22,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 21:59:22,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 21:59:22,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 21:59:22,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 21:59:22,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 21:59:22,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 21:59:22,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 21:59:22,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 21:59:22,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 21:59:22,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 21:59:22,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 21:59:22,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 21:59:22,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 21:59:22,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 21:59:22,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 21:59:22,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 21:59:22,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 21:59:22,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 21:59:22,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 21:59:22,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 21:59:22,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 21:59:22,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 21:59:22,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 21:59:22,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 21:59:22,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 21:59:22,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 21:59:22,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 21:59:22,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 21:59:22,295 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 21:59:22,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 21:59:22,295 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 21:59:22,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 21:59:22,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 21:59:22,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 21:59:22,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:59:22,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 21:59:22,297 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 21:59:22,298 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 21:59:22,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 21:59:22,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 21:59:22,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75f53c568c86c59ddc62d2fd150ff0a5ed9b51ea17cada3ff1a95dec57d9167c [2021-12-15 21:59:22,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 21:59:22,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 21:59:22,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 21:59:22,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 21:59:22,551 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 21:59:22,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2021-12-15 21:59:22,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e1cedde/d7d4243613364df29d8d48ab549bce93/FLAG1b173768a [2021-12-15 21:59:23,083 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 21:59:23,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2021-12-15 21:59:23,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e1cedde/d7d4243613364df29d8d48ab549bce93/FLAG1b173768a [2021-12-15 21:59:23,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e1cedde/d7d4243613364df29d8d48ab549bce93 [2021-12-15 21:59:23,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 21:59:23,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 21:59:23,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 21:59:23,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 21:59:23,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 21:59:23,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16379c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23, skipping insertion in model container [2021-12-15 21:59:23,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 21:59:23,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 21:59:23,381 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/locks/test_locks_14-2.c[5305,5318] [2021-12-15 21:59:23,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:59:23,404 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 21:59:23,443 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/locks/test_locks_14-2.c[5305,5318] [2021-12-15 21:59:23,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:59:23,465 INFO L208 MainTranslator]: Completed translation [2021-12-15 21:59:23,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23 WrapperNode [2021-12-15 21:59:23,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 21:59:23,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 21:59:23,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 21:59:23,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 21:59:23,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,516 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2021-12-15 21:59:23,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 21:59:23,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 21:59:23,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 21:59:23,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 21:59:23,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 21:59:23,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 21:59:23,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 21:59:23,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 21:59:23,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (1/1) ... [2021-12-15 21:59:23,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:59:23,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:59:23,601 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) [2021-12-15 21:59:23,618 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 [2021-12-15 21:59:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 21:59:23,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 21:59:23,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 21:59:23,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 21:59:23,725 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 21:59:23,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 21:59:23,985 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 21:59:23,991 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 21:59:23,991 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 21:59:23,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:59:23 BoogieIcfgContainer [2021-12-15 21:59:24,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 21:59:24,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 21:59:24,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 21:59:24,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 21:59:24,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:59:23" (1/3) ... [2021-12-15 21:59:24,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7818989f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:59:24, skipping insertion in model container [2021-12-15 21:59:24,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:59:23" (2/3) ... [2021-12-15 21:59:24,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7818989f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:59:24, skipping insertion in model container [2021-12-15 21:59:24,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:59:23" (3/3) ... [2021-12-15 21:59:24,026 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2021-12-15 21:59:24,031 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 21:59:24,031 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 21:59:24,083 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 21:59:24,091 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 [2021-12-15 21:59:24,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 21:59:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.92) internal successors, (96), 51 states have internal predecessors, (96), 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) [2021-12-15 21:59:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 21:59:24,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:59:24,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:59:24,114 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:59:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:59:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 792943379, now seen corresponding path program 1 times [2021-12-15 21:59:24,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:59:24,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117893705] [2021-12-15 21:59:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:59:24,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:59:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:59:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:59:24,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:59:24,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117893705] [2021-12-15 21:59:24,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117893705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:59:24,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:59:24,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 21:59:24,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567370011] [2021-12-15 21:59:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:59:24,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 21:59:24,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:59:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 21:59:24,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,373 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.92) internal successors, (96), 51 states have internal predecessors, (96), 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 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:59:24,426 INFO L93 Difference]: Finished difference Result 107 states and 193 transitions. [2021-12-15 21:59:24,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 21:59:24,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-12-15 21:59:24,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:59:24,439 INFO L225 Difference]: With dead ends: 107 [2021-12-15 21:59:24,440 INFO L226 Difference]: Without dead ends: 93 [2021-12-15 21:59:24,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,448 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:59:24,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 186 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:59:24,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-12-15 21:59:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 63. [2021-12-15 21:59:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.903225806451613) internal successors, (118), 62 states have internal predecessors, (118), 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) [2021-12-15 21:59:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 118 transitions. [2021-12-15 21:59:24,496 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 118 transitions. Word has length 21 [2021-12-15 21:59:24,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:59:24,496 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 118 transitions. [2021-12-15 21:59:24,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 118 transitions. [2021-12-15 21:59:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 21:59:24,499 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:59:24,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:59:24,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 21:59:24,500 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:59:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:59:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash 792950571, now seen corresponding path program 1 times [2021-12-15 21:59:24,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:59:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666116732] [2021-12-15 21:59:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:59:24,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:59:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:59:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:59:24,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:59:24,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666116732] [2021-12-15 21:59:24,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666116732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:59:24,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:59:24,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 21:59:24,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400480221] [2021-12-15 21:59:24,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:59:24,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 21:59:24,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:59:24,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 21:59:24,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,599 INFO L87 Difference]: Start difference. First operand 63 states and 118 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:59:24,687 INFO L93 Difference]: Finished difference Result 155 states and 291 transitions. [2021-12-15 21:59:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 21:59:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-12-15 21:59:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:59:24,689 INFO L225 Difference]: With dead ends: 155 [2021-12-15 21:59:24,690 INFO L226 Difference]: Without dead ends: 94 [2021-12-15 21:59:24,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,693 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 71 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:59:24,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 224 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:59:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-15 21:59:24,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2021-12-15 21:59:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.89010989010989) internal successors, (172), 91 states have internal predecessors, (172), 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) [2021-12-15 21:59:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 172 transitions. [2021-12-15 21:59:24,713 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 172 transitions. Word has length 21 [2021-12-15 21:59:24,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:59:24,715 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 172 transitions. [2021-12-15 21:59:24,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,715 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2021-12-15 21:59:24,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 21:59:24,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:59:24,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:59:24,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 21:59:24,719 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:59:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:59:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash -795404523, now seen corresponding path program 1 times [2021-12-15 21:59:24,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:59:24,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700013541] [2021-12-15 21:59:24,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:59:24,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:59:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:59:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:59:24,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:59:24,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700013541] [2021-12-15 21:59:24,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700013541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:59:24,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:59:24,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 21:59:24,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595071354] [2021-12-15 21:59:24,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:59:24,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 21:59:24,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:59:24,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 21:59:24,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,775 INFO L87 Difference]: Start difference. First operand 92 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:59:24,796 INFO L93 Difference]: Finished difference Result 143 states and 261 transitions. [2021-12-15 21:59:24,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 21:59:24,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-12-15 21:59:24,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:59:24,801 INFO L225 Difference]: With dead ends: 143 [2021-12-15 21:59:24,801 INFO L226 Difference]: Without dead ends: 96 [2021-12-15 21:59:24,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,807 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 69 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:59:24,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 198 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:59:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-15 21:59:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2021-12-15 21:59:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.8494623655913978) internal successors, (172), 93 states have internal predecessors, (172), 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) [2021-12-15 21:59:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 172 transitions. [2021-12-15 21:59:24,824 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 172 transitions. Word has length 21 [2021-12-15 21:59:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:59:24,825 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 172 transitions. [2021-12-15 21:59:24,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 172 transitions. [2021-12-15 21:59:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 21:59:24,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:59:24,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:59:24,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 21:59:24,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:59:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:59:24,828 INFO L85 PathProgramCache]: Analyzing trace with hash -795397331, now seen corresponding path program 1 times [2021-12-15 21:59:24,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:59:24,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354416733] [2021-12-15 21:59:24,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:59:24,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:59:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:59:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:59:24,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:59:24,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354416733] [2021-12-15 21:59:24,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354416733] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:59:24,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:59:24,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 21:59:24,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128226899] [2021-12-15 21:59:24,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:59:24,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 21:59:24,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:59:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 21:59:24,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,898 INFO L87 Difference]: Start difference. First operand 94 states and 172 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:59:24,915 INFO L93 Difference]: Finished difference Result 216 states and 398 transitions. [2021-12-15 21:59:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 21:59:24,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-12-15 21:59:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:59:24,917 INFO L225 Difference]: With dead ends: 216 [2021-12-15 21:59:24,918 INFO L226 Difference]: Without dead ends: 127 [2021-12-15 21:59:24,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 21:59:24,919 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:59:24,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 125 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:59:24,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-12-15 21:59:24,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2021-12-15 21:59:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.8306451612903225) internal successors, (227), 124 states have internal predecessors, (227), 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) [2021-12-15 21:59:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 227 transitions. [2021-12-15 21:59:24,932 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 227 transitions. Word has length 21 [2021-12-15 21:59:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:59:24,932 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 227 transitions. [2021-12-15 21:59:24,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-15 21:59:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 227 transitions. [2021-12-15 21:59:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-15 21:59:24,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:59:24,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:59:24,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 21:59:24,934 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:59:24,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:59:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1816465685, now seen corresponding path program 1 times [2021-12-15 21:59:24,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:59:24,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339838736] [2021-12-15 21:59:24,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:59:24,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:59:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 21:59:24,963 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 21:59:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 21:59:24,995 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 21:59:24,996 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 21:59:24,997 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 21:59:24,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 21:59:25,003 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-15 21:59:25,005 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 21:59:25,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:59:25 BoogieIcfgContainer [2021-12-15 21:59:25,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 21:59:25,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 21:59:25,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 21:59:25,048 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 21:59:25,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:59:23" (3/4) ... [2021-12-15 21:59:25,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-15 21:59:25,099 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 21:59:25,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 21:59:25,099 INFO L158 Benchmark]: Toolchain (without parser) took 1981.16ms. Allocated memory is still 109.1MB. Free memory was 76.7MB in the beginning and 55.7MB in the end (delta: 21.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,100 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 21:59:25,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.98ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 83.4MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.84ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,101 INFO L158 Benchmark]: Boogie Preprocessor took 42.28ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 21:59:25,101 INFO L158 Benchmark]: RCFGBuilder took 447.23ms. Allocated memory is still 109.1MB. Free memory was 80.2MB in the beginning and 65.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,101 INFO L158 Benchmark]: TraceAbstraction took 1038.51ms. Allocated memory is still 109.1MB. Free memory was 65.5MB in the beginning and 60.5MB in the end (delta: 5.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,102 INFO L158 Benchmark]: Witness Printer took 51.11ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 55.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 21:59:25,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 45.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.98ms. Allocated memory is still 109.1MB. Free memory was 76.5MB in the beginning and 83.4MB in the end (delta: -6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.84ms. Allocated memory is still 109.1MB. Free memory was 83.4MB in the beginning and 81.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.28ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.23ms. Allocated memory is still 109.1MB. Free memory was 80.2MB in the beginning and 65.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1038.51ms. Allocated memory is still 109.1MB. Free memory was 65.5MB in the beginning and 60.5MB in the end (delta: 5.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 51.11ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 55.7MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. 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: 219]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L51] int cond; VAL [p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L96] COND FALSE !(p3 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L124] COND TRUE p10 != 0 [L125] lk10 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L128] COND FALSE !(p11 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L219] reach_error() VAL [cond=1, lk1=0, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=0, p12=1, p13=1, p14=1, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 282 mSDsluCounter, 733 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 286 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 447 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-15 21:59:25,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE