./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:55:20,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:55:20,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:55:20,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:55:20,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:55:20,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:55:20,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:55:20,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:55:20,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:55:20,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:55:20,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:55:20,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:55:20,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:55:20,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:55:20,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:55:20,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:55:20,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:55:20,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:55:20,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:55:20,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:55:20,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:55:20,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:55:20,740 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:55:20,740 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:55:20,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:55:20,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:55:20,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:55:20,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:55:20,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:55:20,745 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:55:20,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:55:20,747 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:55:20,747 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2023-11-11 23:55:21,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:55:21,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:55:21,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:55:21,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:55:21,058 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:55:21,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2023-11-11 23:55:24,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:55:24,560 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:55:24,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2023-11-11 23:55:24,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/data/b9eca1213/c7cd103e8146472c84a049b2126c0d6f/FLAG042fcd2b5 [2023-11-11 23:55:24,603 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/data/b9eca1213/c7cd103e8146472c84a049b2126c0d6f [2023-11-11 23:55:24,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:55:24,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:55:24,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:55:24,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:55:24,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:55:24,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:55:24" (1/1) ... [2023-11-11 23:55:24,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66692898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:24, skipping insertion in model container [2023-11-11 23:55:24,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:55:24" (1/1) ... [2023-11-11 23:55:24,713 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:55:25,163 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_eedac074-2461-41c7-8c35-3ebbbd61c40a/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2023-11-11 23:55:25,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:55:25,249 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:55:25,310 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_eedac074-2461-41c7-8c35-3ebbbd61c40a/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2023-11-11 23:55:25,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:55:25,395 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:55:25,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25 WrapperNode [2023-11-11 23:55:25,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:55:25,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:55:25,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:55:25,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:55:25,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,501 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 289 [2023-11-11 23:55:25,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:55:25,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:55:25,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:55:25,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:55:25,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:55:25,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:55:25,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:55:25,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:55:25,568 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:55:25" (1/1) ... [2023-11-11 23:55:25,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:55:25,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:55:25,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:55:25,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:55:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:55:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2023-11-11 23:55:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2023-11-11 23:55:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-11 23:55:25,669 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-11 23:55:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:55:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-11 23:55:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:55:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:55:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-11 23:55:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-11 23:55:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:55:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:55:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:55:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:55:25,816 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:55:25,819 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:55:26,402 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:55:26,576 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:55:26,576 INFO L302 CfgBuilder]: Removed 33 assume(true) statements. [2023-11-11 23:55:26,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:55:26 BoogieIcfgContainer [2023-11-11 23:55:26,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:55:26,583 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:55:26,583 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:55:26,596 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:55:26,596 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:55:26" (1/1) ... [2023-11-11 23:55:26,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:55:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 80 states and 146 transitions. [2023-11-11 23:55:26,707 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 146 transitions. [2023-11-11 23:55:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:55:26,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:26,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2023-11-11 23:55:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2023-11-11 23:55:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:55:26,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:26,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 82 states and 132 transitions. [2023-11-11 23:55:27,099 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2023-11-11 23:55:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:55:27,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:27,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 81 states and 130 transitions. [2023-11-11 23:55:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 130 transitions. [2023-11-11 23:55:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:55:27,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:27,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:55:27,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2023-11-11 23:55:27,707 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2023-11-11 23:55:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:55:27,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:28,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2023-11-11 23:55:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2023-11-11 23:55:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:55:28,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:28,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:28,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 85 states and 131 transitions. [2023-11-11 23:55:28,208 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2023-11-11 23:55:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:55:28,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:28,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:55:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 88 states and 132 transitions. [2023-11-11 23:55:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2023-11-11 23:55:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:55:28,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:29,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:55:29,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 91 states and 133 transitions. [2023-11-11 23:55:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2023-11-11 23:55:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:55:29,283 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:29,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 100 states and 143 transitions. [2023-11-11 23:55:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-11-11 23:55:31,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:55:31,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 107 states and 149 transitions. [2023-11-11 23:55:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2023-11-11 23:55:32,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:55:32,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:32,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:55:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:55:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:55:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 114 states and 156 transitions. [2023-11-11 23:55:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-11-11 23:55:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:55:34,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:55:34,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:55:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:55:34,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:55:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:55:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:55:35,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-11 23:55:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-11 23:55:35,125 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 12 iterations. [2023-11-11 23:55:35,160 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-11 23:55:35,162 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem27 [2023-11-11 23:55:35,162 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-11 23:55:35,163 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem29 [2023-11-11 23:55:35,163 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem30 [2023-11-11 23:55:35,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 11.11 11:55:35 ImpRootNode [2023-11-11 23:55:35,169 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-11 23:55:35,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-11 23:55:35,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-11 23:55:35,170 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-11 23:55:35,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:55:26" (3/4) ... [2023-11-11 23:55:35,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-11 23:55:35,180 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem26 [2023-11-11 23:55:35,181 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem27 [2023-11-11 23:55:35,182 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem28 [2023-11-11 23:55:35,182 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem30 [2023-11-11 23:55:35,182 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem29 [2023-11-11 23:55:35,231 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-11 23:55:35,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-11 23:55:35,232 INFO L158 Benchmark]: Toolchain (without parser) took 10623.98ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 113.0MB in the beginning and 107.2MB in the end (delta: 5.8MB). Peak memory consumption was 91.1MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,233 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-11 23:55:35,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.91ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 94.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.60ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,236 INFO L158 Benchmark]: Boogie Preprocessor took 61.54ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 89.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,237 INFO L158 Benchmark]: RCFGBuilder took 1015.94ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 89.0MB in the beginning and 151.4MB in the end (delta: -62.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,238 INFO L158 Benchmark]: CodeCheck took 8586.43ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 151.4MB in the beginning and 109.3MB in the end (delta: 42.0MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,239 INFO L158 Benchmark]: Witness Printer took 61.63ms. Allocated memory is still 234.9MB. Free memory was 109.3MB in the beginning and 107.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-11 23:55:35,243 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1006 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 787 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364 mSDsCounter, 227 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 740 IncrementalHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 227 mSolverCounterUnsat, 423 mSDtfsCounter, 740 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1464 GetRequests, 1352 SyntacticMatches, 8 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3633 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 763 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 16/18 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 565]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE, EXPR !(!node) [L643] EXPR node->next = node [L644] EXPR node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE, EXPR !(!item) [L648] EXPR item->slist = node [L649] EXPR item->next = data [L650] EXPR data = item [L639-L651] { struct node *node = malloc(sizeof *node); if (!node) abort(); node->next = node; node->value = __VERIFIER_nondet_int(); struct list *item = malloc(sizeof *item); if (!item) abort(); item->slist = node; item->next = data; data = item; } VAL [data={-2:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-2:0}, shape={-2:0}] [L616] shape->next VAL [shape={-2:0}, shape={-2:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-2:0}, shape={-2:0}] [L623] EXPR shape->next VAL [shape={-2:0}, shape={-2:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-2:0}, shape={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-2:0}, shape={-2:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 93.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.91ms. Allocated memory is still 151.0MB. Free memory was 113.0MB in the beginning and 94.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.60ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 92.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.54ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 89.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1015.94ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 89.0MB in the beginning and 151.4MB in the end (delta: -62.4MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * CodeCheck took 8586.43ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 151.4MB in the beginning and 109.3MB in the end (delta: 42.0MB). Peak memory consumption was 84.0MB. Max. memory is 16.1GB. * Witness Printer took 61.63ms. Allocated memory is still 234.9MB. Free memory was 109.3MB in the beginning and 107.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem27 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem29 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem30 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem26 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem27 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem28 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem30 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem29 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-11 23:55:35,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedac074-2461-41c7-8c35-3ebbbd61c40a/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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