./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/trex02-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:29:00,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:29:00,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:29:00,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:29:00,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:29:00,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:29:00,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:29:00,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:29:00,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:29:00,962 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:29:00,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:29:00,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:29:00,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:29:00,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:29:00,965 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:29:00,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:29:00,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:29:00,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:29:00,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:29:00,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:29:00,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:29:00,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:29:00,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:29:00,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:29:00,970 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:29:00,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:29:00,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:29:00,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:29:00,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:29:00,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:29:00,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:29:00,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:00,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:29:00,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:29:00,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:29:00,975 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:29:00,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:29:00,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:29:00,976 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:29:00,976 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:29:00,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:29:00,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:29:00,978 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 813a8ddd546bc7f5130f32994d5f684af23ea3f2882f066aeb97d0e96f57ab55 [2023-11-23 22:29:01,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:29:01,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:29:01,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:29:01,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:29:01,313 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:29:01,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/loops/trex02-2.c [2023-11-23 22:29:04,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:29:04,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:29:04,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/sv-benchmarks/c/loops/trex02-2.c [2023-11-23 22:29:04,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/data/ba06f80fb/5d3c60fd15a14d55b97897110d6c0b38/FLAGb3a0bf72b [2023-11-23 22:29:04,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/data/ba06f80fb/5d3c60fd15a14d55b97897110d6c0b38 [2023-11-23 22:29:04,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:29:04,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:29:04,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:04,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:29:04,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:29:04,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:04" (1/1) ... [2023-11-23 22:29:04,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713f48de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:04, skipping insertion in model container [2023-11-23 22:29:04,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:04" (1/1) ... [2023-11-23 22:29:04,785 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:29:04,961 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/sv-benchmarks/c/loops/trex02-2.c[320,333] [2023-11-23 22:29:04,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:04,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:29:05,010 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/sv-benchmarks/c/loops/trex02-2.c[320,333] [2023-11-23 22:29:05,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:05,034 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:29:05,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05 WrapperNode [2023-11-23 22:29:05,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:05,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:05,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:29:05,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:29:05,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,078 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2023-11-23 22:29:05,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:05,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:29:05,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:29:05,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:29:05,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,094 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,105 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:29:05,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:29:05,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:29:05,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:29:05,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:29:05,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:05,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:29:05,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:29:05,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:29:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:29:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-23 22:29:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-23 22:29:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:29:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:29:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:29:05,269 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:29:05,271 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:29:05,404 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:29:05,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:29:05,432 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:29:05,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:05 BoogieIcfgContainer [2023-11-23 22:29:05,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:29:05,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:29:05,436 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:29:05,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:29:05,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:29:04" (1/3) ... [2023-11-23 22:29:05,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556eb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:05, skipping insertion in model container [2023-11-23 22:29:05,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05" (2/3) ... [2023-11-23 22:29:05,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556eb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:05, skipping insertion in model container [2023-11-23 22:29:05,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:05" (3/3) ... [2023-11-23 22:29:05,444 INFO L112 eAbstractionObserver]: Analyzing ICFG trex02-2.c [2023-11-23 22:29:05,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:29:05,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:29:05,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:29:05,528 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@1a20536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:29:05,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:29:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:29:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:29:05,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:05,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:29:05,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:29:05,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash 72775538, now seen corresponding path program 1 times [2023-11-23 22:29:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252476424] [2023-11-23 22:29:05,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:05,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:05,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:05,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252476424] [2023-11-23 22:29:05,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252476424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:05,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:05,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:29:05,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363137974] [2023-11-23 22:29:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:29:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:29:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:29:05,742 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-23 22:29:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:05,767 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2023-11-23 22:29:05,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:29:05,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-23 22:29:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:05,779 INFO L225 Difference]: With dead ends: 20 [2023-11-23 22:29:05,780 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 22:29:05,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:29:05,787 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:05,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:29:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 22:29:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 22:29:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:29:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-11-23 22:29:05,821 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2023-11-23 22:29:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:05,822 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-11-23 22:29:05,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-23 22:29:05,822 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-23 22:29:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:29:05,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:05,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:29:05,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:29:05,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:29:05,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash 72388255, now seen corresponding path program 1 times [2023-11-23 22:29:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:05,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076322226] [2023-11-23 22:29:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:05,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:29:05,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:29:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:29:05,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:29:05,888 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:29:05,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:29:05,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:29:05,896 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 22:29:05,900 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:29:05,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:29:05 BoogieIcfgContainer [2023-11-23 22:29:05,917 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:29:05,918 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:29:05,919 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:29:05,919 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:29:05,920 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:05" (3/4) ... [2023-11-23 22:29:05,921 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 22:29:05,957 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:29:05,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:29:05,959 INFO L158 Benchmark]: Toolchain (without parser) took 1206.25ms. Allocated memory is still 197.1MB. Free memory was 151.6MB in the beginning and 102.2MB in the end (delta: 49.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,959 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 197.1MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:29:05,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.26ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 140.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 197.1MB. Free memory was 140.8MB in the beginning and 139.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,961 INFO L158 Benchmark]: Boogie Preprocessor took 51.71ms. Allocated memory is still 197.1MB. Free memory was 139.5MB in the beginning and 137.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,962 INFO L158 Benchmark]: RCFGBuilder took 300.63ms. Allocated memory is still 197.1MB. Free memory was 137.8MB in the beginning and 127.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,962 INFO L158 Benchmark]: TraceAbstraction took 482.01ms. Allocated memory is still 197.1MB. Free memory was 126.5MB in the beginning and 103.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,963 INFO L158 Benchmark]: Witness Printer took 39.39ms. Allocated memory is still 197.1MB. Free memory was 103.9MB in the beginning and 102.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:29:05,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 197.1MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.26ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 140.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 197.1MB. Free memory was 140.8MB in the beginning and 139.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.71ms. Allocated memory is still 197.1MB. Free memory was 139.5MB in the beginning and 137.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.63ms. Allocated memory is still 197.1MB. Free memory was 137.8MB in the beginning and 127.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 482.01ms. Allocated memory is still 197.1MB. Free memory was 126.5MB in the beginning and 103.9MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 39.39ms. Allocated memory is still 197.1MB. Free memory was 103.9MB in the beginning and 102.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int x; [L22] x=__VERIFIER_nondet_int() [L23] COND FALSE !(x > 0) VAL [x=-1] [L28] CALL __VERIFIER_assert(x==0) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, x=-1] [L7] reach_error() VAL [\old(cond)=0, cond=0, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-11-23 22:29:06,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c4fe7c-4ca1-45bb-9874-4f8051b3f1b7/bin/uautomizer-verify-zZY32mL2XJ/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