./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test22-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI --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 d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:48:56,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:48:56,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:48:56,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:48:56,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:48:56,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:48:56,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:48:56,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:48:56,316 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:48:56,318 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:48:56,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:48:56,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:48:56,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:48:56,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:48:56,327 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:48:56,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:48:56,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:48:56,331 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:48:56,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:48:56,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:48:56,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:48:56,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:48:56,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:48:56,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:48:56,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:48:56,335 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:48:56,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:48:56,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:48:56,337 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:48:56,337 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:48:56,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:48:56,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:48:56,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:48:56,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:48:56,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:48:56,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:48:56,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:48:56,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:48:56,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:48:56,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:48:56,342 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:48:56,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:48:56,342 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_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff [2023-11-24 21:48:56,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:48:56,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:48:56,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:48:56,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:48:56,731 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:48:56,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/ldv-regression/test22-3.c [2023-11-24 21:48:59,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:49:00,154 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:49:00,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/sv-benchmarks/c/ldv-regression/test22-3.c [2023-11-24 21:49:00,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/data/e822d9c37/01c65209d0b94808b6401c7b86358f2c/FLAG8fa16324f [2023-11-24 21:49:00,185 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/data/e822d9c37/01c65209d0b94808b6401c7b86358f2c [2023-11-24 21:49:00,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:49:00,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:49:00,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:49:00,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:49:00,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:49:00,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220c3de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00, skipping insertion in model container [2023-11-24 21:49:00,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,228 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:49:00,414 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_7c92483f-7006-4b6c-92b0-c26f88bca7c0/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2023-11-24 21:49:00,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:49:00,431 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:49:00,450 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_7c92483f-7006-4b6c-92b0-c26f88bca7c0/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2023-11-24 21:49:00,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:49:00,471 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:49:00,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00 WrapperNode [2023-11-24 21:49:00,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:49:00,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:49:00,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:49:00,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:49:00,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,528 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-24 21:49:00,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:49:00,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:49:00,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:49:00,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:49:00,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,561 INFO L175 MemorySlicer]: Split 16 memory accesses to 2 slices as follows [2, 14]. 88 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 4 writes are split as follows [0, 4]. [2023-11-24 21:49:00,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:49:00,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:49:00,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:49:00,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:49:00,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (1/1) ... [2023-11-24 21:49:00,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:49:00,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:49:00,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:49:00,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:49:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:49:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 21:49:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 21:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:49:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-11-24 21:49:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-11-24 21:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:49:00,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:49:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:49:00,757 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:49:00,759 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:49:00,935 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:49:00,987 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:49:00,987 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:49:00,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:49:00 BoogieIcfgContainer [2023-11-24 21:49:00,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:49:00,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:49:00,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:49:00,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:49:00,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:49:00" (1/3) ... [2023-11-24 21:49:00,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6cfb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:49:00, skipping insertion in model container [2023-11-24 21:49:00,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:00" (2/3) ... [2023-11-24 21:49:00,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6cfb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:49:00, skipping insertion in model container [2023-11-24 21:49:00,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:49:00" (3/3) ... [2023-11-24 21:49:00,997 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-3.c [2023-11-24 21:49:01,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:49:01,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:49:01,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:49:01,083 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;@14675e84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:49:01,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:49:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:49:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 21:49:01,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:49:01,095 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:49:01,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:49:01,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:49:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1321321755, now seen corresponding path program 1 times [2023-11-24 21:49:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:49:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734495490] [2023-11-24 21:49:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:49:01,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:49:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:49:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-24 21:49:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-24 21:49:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-24 21:49:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-24 21:49:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:49:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 21:49:01,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:49:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734495490] [2023-11-24 21:49:01,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734495490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:49:01,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:49:01,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:49:01,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40816938] [2023-11-24 21:49:01,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:49:01,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:49:01,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:49:01,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:49:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:49:01,429 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:49:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:49:01,476 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2023-11-24 21:49:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:49:01,479 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2023-11-24 21:49:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:49:01,488 INFO L225 Difference]: With dead ends: 54 [2023-11-24 21:49:01,488 INFO L226 Difference]: Without dead ends: 25 [2023-11-24 21:49:01,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:49:01,495 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:49:01,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 21:49:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-24 21:49:01,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-11-24 21:49:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:49:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-24 21:49:01,539 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 31 [2023-11-24 21:49:01,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:49:01,540 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-24 21:49:01,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-24 21:49:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-24 21:49:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 21:49:01,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:49:01,544 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:49:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:49:01,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:49:01,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:49:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1561662021, now seen corresponding path program 1 times [2023-11-24 21:49:01,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:49:01,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610158657] [2023-11-24 21:49:01,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:49:01,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:49:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:49:01,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:49:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:49:01,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 21:49:01,833 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:49:01,835 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 21:49:01,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:49:01,841 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 21:49:01,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:49:01,872 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 21:49:01,873 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-24 21:49:01,873 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret12 [2023-11-24 21:49:01,874 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret13 [2023-11-24 21:49:01,875 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret14 [2023-11-24 21:49:01,875 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated [2023-11-24 21:49:01,876 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-24 21:49:01,876 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated [2023-11-24 21:49:01,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:49:01 BoogieIcfgContainer [2023-11-24 21:49:01,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:49:01,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:49:01,888 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:49:01,888 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:49:01,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:49:00" (3/4) ... [2023-11-24 21:49:01,890 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 21:49:01,900 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-24 21:49:01,901 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-24 21:49:01,901 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret12 [2023-11-24 21:49:01,902 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret13 [2023-11-24 21:49:01,902 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~ret14 [2023-11-24 21:49:01,903 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated [2023-11-24 21:49:01,903 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-11-24 21:49:01,903 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated [2023-11-24 21:49:01,949 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 21:49:01,950 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:49:01,951 INFO L158 Benchmark]: Toolchain (without parser) took 1761.03ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 112.0MB in the beginning and 151.2MB in the end (delta: -39.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-24 21:49:01,951 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 144.7MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:49:01,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.62ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 100.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 21:49:01,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.66ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:49:01,953 INFO L158 Benchmark]: Boogie Preprocessor took 48.26ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:49:01,953 INFO L158 Benchmark]: RCFGBuilder took 409.50ms. Allocated memory is still 144.7MB. Free memory was 96.7MB in the beginning and 82.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:49:01,954 INFO L158 Benchmark]: TraceAbstraction took 897.55ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 81.4MB in the beginning and 154.3MB in the end (delta: -72.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:49:01,954 INFO L158 Benchmark]: Witness Printer took 61.73ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 151.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:49:01,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 144.7MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.62ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 100.7MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.66ms. Allocated memory is still 144.7MB. Free memory was 100.3MB in the beginning and 98.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.26ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.50ms. Allocated memory is still 144.7MB. Free memory was 96.7MB in the beginning and 82.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 897.55ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 81.4MB in the beginning and 154.3MB in the end (delta: -72.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.73ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 151.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret12 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret14 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret12 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret13 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~ret14 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short17 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: 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: 56]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L40] CALL init() [L19] d1.a = __VERIFIER_nondet_int() [L20] d1.b = __VERIFIER_nondet_int() [L21] EXPR d1.a VAL [d1={4:0}, d2={5:0}] [L21] CALL assume_abort_if_not(d1.a >= -2147483638) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, d1={4:0}, d2={5:0}] [L21] RET assume_abort_if_not(d1.a >= -2147483638) VAL [d1={4:0}, d2={5:0}] [L23] d2.a = __VERIFIER_nondet_int() [L24] d2.b = __VERIFIER_nondet_int() [L25] EXPR d2.a VAL [d1={4:0}, d2={5:0}] [L25] CALL assume_abort_if_not(d2.a >= -2147483638) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, d1={4:0}, d2={5:0}] [L25] RET assume_abort_if_not(d2.a >= -2147483638) VAL [d1={4:0}, d2={5:0}] [L40] RET init() [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={4:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={4:0}, pd2={4:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L42] int i = __VERIFIER_nondet_int(); [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={4:0}, d2={5:0}, i=0, pd1={4:0}, pd2={4:0}, pd3={5:0}] [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L43] EXPR (*pd2).a [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={4:0}, d2={5:0}, i=0, pd1={4:0}, pd2={4:0}, pd3={5:0}] [L43] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L44] int *pa = &pd1->a; [L45] EXPR pd3->a [L45] i = pd3->a - 10 [L46] EXPR \read(*pa) VAL [d1={4:0}, d2={5:0}] [L46] COND FALSE !(i < *pa) [L49] CALL, EXPR check(pd2, i) [L35] EXPR s1->a [L35] return s1->a == i; [L49] RET, EXPR check(pd2, i) [L49] COND TRUE !check(pd2, i) [L56] reach_error() VAL [d1={4:0}, d2={5:0}, i=2147483637, pa={4:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 3, 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, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 10/10 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! [2023-11-24 21:49:01,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c92483f-7006-4b6c-92b0-c26f88bca7c0/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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