./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/triangular-2.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d2ba6107 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/triangular-2.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ca4ad6de5ce46f9737c47ccc55c2628eaef135acf1b94c234f6d96d13f1ccb1 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-d2ba610-m [2023-11-21 17:40:10,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 17:40:10,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2023-11-21 17:40:10,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 17:40:10,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 17:40:10,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 17:40:10,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 17:40:10,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 17:40:10,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 17:40:10,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 17:40:10,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 17:40:10,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 17:40:10,452 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 17:40:10,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 17:40:10,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 17:40:10,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 17:40:10,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 17:40:10,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 17:40:10,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 17:40:10,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 17:40:10,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 17:40:10,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 17:40:10,455 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 17:40:10,455 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 17:40:10,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 17:40:10,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 17:40:10,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 17:40:10,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 17:40:10,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 17:40:10,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:40:10,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 17:40:10,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 17:40:10,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 17:40:10,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 17:40:10,458 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-21 17:40:10,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 17:40:10,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 17:40:10,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 17:40:10,459 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 17:40:10,459 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 17:40:10,459 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 17:40:10,460 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ca4ad6de5ce46f9737c47ccc55c2628eaef135acf1b94c234f6d96d13f1ccb1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 17:40:10,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 17:40:10,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 17:40:10,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 17:40:10,692 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 17:40:10,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 17:40:10,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/triangular-2.i [2023-11-21 17:40:11,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 17:40:11,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 17:40:11,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i [2023-11-21 17:40:11,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4e219d207/49ec717ce6914e479e2049ccd12ecc5e/FLAG103733dad [2023-11-21 17:40:11,895 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/4e219d207/49ec717ce6914e479e2049ccd12ecc5e [2023-11-21 17:40:11,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 17:40:11,898 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 17:40:11,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 17:40:11,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 17:40:11,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 17:40:11,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:40:11" (1/1) ... [2023-11-21 17:40:11,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a71120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:11, skipping insertion in model container [2023-11-21 17:40:11,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:40:11" (1/1) ... [2023-11-21 17:40:11,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 17:40:12,118 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2023-11-21 17:40:12,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:40:12,128 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 17:40:12,158 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-2.i[30952,30965] [2023-11-21 17:40:12,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 17:40:12,184 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:40:12,185 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 17:40:12,191 INFO L206 MainTranslator]: Completed translation [2023-11-21 17:40:12,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12 WrapperNode [2023-11-21 17:40:12,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 17:40:12,192 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 17:40:12,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 17:40:12,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 17:40:12,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,241 INFO L138 Inliner]: procedures = 169, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-21 17:40:12,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 17:40:12,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 17:40:12,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 17:40:12,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 17:40:12,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,254 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,279 INFO L193 HeapSplitter]: Split 4 memory accesses to 3 slices as follows [2, 1, 1] [2023-11-21 17:40:12,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 17:40:12,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 17:40:12,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 17:40:12,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 17:40:12,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (1/1) ... [2023-11-21 17:40:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 17:40:12,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 17:40:12,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 17:40:12,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 17:40:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-21 17:40:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-21 17:40:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-21 17:40:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-21 17:40:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 17:40:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 17:40:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 17:40:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 17:40:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 17:40:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 17:40:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 17:40:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 17:40:12,383 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 17:40:12,525 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 17:40:12,528 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 17:40:12,669 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 17:40:12,742 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 17:40:12,743 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 17:40:12,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:40:12 BoogieIcfgContainer [2023-11-21 17:40:12,744 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 17:40:12,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 17:40:12,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 17:40:12,748 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 17:40:12,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:40:11" (1/3) ... [2023-11-21 17:40:12,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae8e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:40:12, skipping insertion in model container [2023-11-21 17:40:12,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:40:12" (2/3) ... [2023-11-21 17:40:12,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae8e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:40:12, skipping insertion in model container [2023-11-21 17:40:12,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:40:12" (3/3) ... [2023-11-21 17:40:12,750 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-2.i [2023-11-21 17:40:12,756 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 17:40:12,763 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 17:40:12,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 17:40:12,764 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 17:40:12,806 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 17:40:12,837 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:40:12,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 17:40:12,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 17:40:12,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-21 17:40:12,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-21 17:40:12,872 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 17:40:12,891 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-21 17:40:12,895 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75cae8b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 17:40:12,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 17:40:12,977 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:40:12,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:40:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1170894247, now seen corresponding path program 1 times [2023-11-21 17:40:12,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:40:12,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641198810] [2023-11-21 17:40:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:40:12,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:40:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:40:13,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:40:13,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:40:13,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641198810] [2023-11-21 17:40:13,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641198810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:40:13,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:40:13,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 17:40:13,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855919689] [2023-11-21 17:40:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:40:13,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 17:40:13,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:40:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 17:40:13,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 17:40:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:13,347 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:40:13,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) 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) [2023-11-21 17:40:13,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:40:13,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 17:40:13,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:40:13,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:40:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 348194946, now seen corresponding path program 1 times [2023-11-21 17:40:13,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:40:13,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325296669] [2023-11-21 17:40:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:40:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:40:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:40:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:40:13,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:40:13,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325296669] [2023-11-21 17:40:13,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325296669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 17:40:13,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 17:40:13,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 17:40:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582223338] [2023-11-21 17:40:13,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 17:40:13,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 17:40:13,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:40:13,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 17:40:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 17:40:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:13,618 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:40:13,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 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) [2023-11-21 17:40:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:40:13,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:40:13,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:40:13,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 17:40:13,746 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:40:13,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:40:13,747 INFO L85 PathProgramCache]: Analyzing trace with hash 332452637, now seen corresponding path program 2 times [2023-11-21 17:40:13,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:40:13,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433564132] [2023-11-21 17:40:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:40:13,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:40:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 17:40:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:40:13,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 17:40:13,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433564132] [2023-11-21 17:40:13,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433564132] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 17:40:13,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223458203] [2023-11-21 17:40:13,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 17:40:13,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 17:40:13,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 17:40:13,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 17:40:13,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 17:40:14,068 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 17:40:14,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 17:40:14,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 17:40:14,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 17:40:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:40:14,184 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 17:40:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 17:40:14,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223458203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 17:40:14,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 17:40:14,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-11-21 17:40:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541168522] [2023-11-21 17:40:14,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 17:40:14,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-21 17:40:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 17:40:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-21 17:40:14,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2023-11-21 17:40:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:14,393 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-21 17:40:14,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 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) [2023-11-21 17:40:14,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:40:14,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:40:14,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-21 17:40:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 17:40:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 17:40:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 17:40:14,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 17:40:14,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-21 17:40:14,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-21 17:40:14,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 17:40:14,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1687735954, now seen corresponding path program 3 times [2023-11-21 17:40:14,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 17:40:14,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195162955] [2023-11-21 17:40:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 17:40:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 17:40:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 17:40:14,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 17:40:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 17:40:14,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 17:40:14,866 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 17:40:14,867 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-21 17:40:14,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-21 17:40:14,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-21 17:40:14,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 17:40:14,876 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-21 17:40:14,879 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 17:40:14,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 17:40:14,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 17:40:14,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 17:40:14,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:40:14 BasicIcfg [2023-11-21 17:40:14,936 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 17:40:14,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 17:40:14,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 17:40:14,936 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 17:40:14,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:40:12" (3/4) ... [2023-11-21 17:40:14,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 17:40:14,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-21 17:40:14,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-21 17:40:15,000 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2023-11-21 17:40:15,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 17:40:15,001 INFO L158 Benchmark]: Toolchain (without parser) took 3103.50ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 102.2MB in the beginning and 123.1MB in the end (delta: -20.9MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,001 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 17:40:15,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.26ms. Allocated memory is still 159.4MB. Free memory was 102.2MB in the beginning and 82.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.91ms. Allocated memory is still 159.4MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,002 INFO L158 Benchmark]: Boogie Preprocessor took 50.82ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 80.3MB in the beginning and 176.5MB in the end (delta: -96.2MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,002 INFO L158 Benchmark]: RCFGBuilder took 450.38ms. Allocated memory is still 207.6MB. Free memory was 176.5MB in the beginning and 157.3MB in the end (delta: 19.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,002 INFO L158 Benchmark]: TraceAbstraction took 2189.93ms. Allocated memory is still 207.6MB. Free memory was 156.3MB in the beginning and 132.5MB in the end (delta: 23.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,003 INFO L158 Benchmark]: Witness Printer took 64.58ms. Allocated memory is still 207.6MB. Free memory was 132.5MB in the beginning and 123.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 17:40:15,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.26ms. Allocated memory is still 159.4MB. Free memory was 102.2MB in the beginning and 82.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.91ms. Allocated memory is still 159.4MB. Free memory was 82.4MB in the beginning and 80.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.82ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 80.3MB in the beginning and 176.5MB in the end (delta: -96.2MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * RCFGBuilder took 450.38ms. Allocated memory is still 207.6MB. Free memory was 176.5MB in the beginning and 157.3MB in the end (delta: 19.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2189.93ms. Allocated memory is still 207.6MB. Free memory was 156.3MB in the beginning and 132.5MB in the end (delta: 23.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 64.58ms. Allocated memory is still 207.6MB. Free memory was 132.5MB in the beginning and 123.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 856, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 131, dependent conditional: 125, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 734, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 734, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 214, independent: 205, independent conditional: 5, independent unconditional: 200, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 214, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, independent: 46, independent conditional: 15, independent unconditional: 31, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 742, independent: 520, independent conditional: 0, independent unconditional: 520, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 214, unknown conditional: 8, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 205, Positive conditional cache size: 5, Positive unconditional cache size: 200, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 122 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 16, Number of trivial persistent sets: 7, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 216, independent: 210, independent conditional: 0, independent unconditional: 210, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 856, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 131, dependent conditional: 125, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 734, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 734, independent: 725, independent conditional: 515, independent unconditional: 210, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 742, independent: 725, independent conditional: 5, independent unconditional: 720, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 214, independent: 205, independent conditional: 5, independent unconditional: 200, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 214, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 6, independent conditional: 5, independent unconditional: 1, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, independent: 46, independent conditional: 15, independent unconditional: 31, dependent: 21, dependent conditional: 6, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 742, independent: 520, independent conditional: 0, independent unconditional: 520, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 214, unknown conditional: 8, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 205, Positive conditional cache size: 5, Positive unconditional cache size: 200, Negative cache size: 9, Negative conditional cache size: 3, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 1, Independence queries for same thread: 122 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, argc=51, argv={49:50}, i=3, id1={5:0}, id2={3:0}, j=6] [L696] 1 int k = 0; VAL [arg={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, i=3, id1={5:0}, id2={3:0}, j=6, k=0] [L704] 2 int k = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L716] 0 int condI = i >= (2*5 +6); VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, condI=0, i=3, id1={5:0}, id2={3:0}, j=6, k=0, k=0] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L696] COND TRUE 1 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L719] 0 int condJ = j >= (2*5 +6); VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=5, k=5] [L721] COND TRUE 0 condI || condJ VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=5, k=5] [L722] 0 reach_error() VAL [\old(argc)=51, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, argc=51, argv={49:50}, condI=0, condJ=1, i=15, id1={5:0}, id2={3:0}, j=16, k=5, k=5] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 6 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/18 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! [2023-11-21 17:40:15,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 17:40:15,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-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