./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-properties/simple-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk --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 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:09:32,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:09:32,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:09:32,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:09:32,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:09:32,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:09:32,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:09:32,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:09:32,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:09:32,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:09:32,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:09:32,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:09:32,825 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:09:32,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:09:32,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:09:32,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:09:32,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:09:32,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:09:32,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:09:32,831 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:09:32,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:09:32,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:09:32,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:09:32,836 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:09:32,836 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:09:32,836 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:09:32,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:09:32,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:09:32,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:09:32,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:09:32,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:09:32,838 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:09:32,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:09:32,839 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_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b [2024-11-09 00:09:33,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:09:33,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:09:33,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:09:33,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:09:33,177 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:09:33,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-properties/simple-1.i Unable to find full path for "g++" [2024-11-09 00:09:35,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:09:35,331 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:09:35,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/sv-benchmarks/c/list-properties/simple-1.i [2024-11-09 00:09:35,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/data/e1ca29feb/10d5cd261b474ae08a55290d9d7e9a6e/FLAG0ce2c054e [2024-11-09 00:09:35,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/data/e1ca29feb/10d5cd261b474ae08a55290d9d7e9a6e [2024-11-09 00:09:35,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:09:35,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:09:35,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:09:35,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:09:35,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:09:35,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757f72b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35, skipping insertion in model container [2024-11-09 00:09:35,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:09:35,779 WARN L250 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_0247a601-d3ac-46af-971a-6d285c0029a5/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2024-11-09 00:09:35,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:09:35,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:09:35,837 WARN L250 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_0247a601-d3ac-46af-971a-6d285c0029a5/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2024-11-09 00:09:35,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:09:35,867 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:09:35,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35 WrapperNode [2024-11-09 00:09:35,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:09:35,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:09:35,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:09:35,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:09:35,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,912 INFO L138 Inliner]: procedures = 124, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-11-09 00:09:35,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:09:35,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:09:35,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:09:35,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:09:35,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:09:35,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:09:35,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:09:35,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:09:35,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:09:35" (1/1) ... [2024-11-09 00:09:35,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:09:35,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:09:35,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:09:35,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:09:36,016 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-09 00:09:36,016 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:09:36,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:09:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:09:36,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:09:36,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:09:36,160 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:09:36,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:09:36,192 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-09 00:09:36,372 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 00:09:36,372 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:09:36,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:09:36,410 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:09:36,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:09:36 BoogieIcfgContainer [2024-11-09 00:09:36,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:09:36,412 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:09:36,412 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:09:36,421 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:09:36,421 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:09:36" (1/1) ... [2024-11-09 00:09:36,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:09:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2024-11-09 00:09:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-11-09 00:09:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:09:36,506 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:36,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:09:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:09:36,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-09 00:09:36,724 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-09 00:09:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 00:09:36,726 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:36,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:09:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:09:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:37,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2024-11-09 00:09:37,298 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-11-09 00:09:37,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:09:37,298 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:37,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:09:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:09:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:09:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:09:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 34 states and 52 transitions. [2024-11-09 00:09:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2024-11-09 00:09:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 00:09:38,434 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:09:38,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:09:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:09:38,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:09:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:09:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:09:38,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:09:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:09:38,620 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-09 00:09:38,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:09:38 ImpRootNode [2024-11-09 00:09:38,652 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:09:38,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:09:38,653 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:09:38,653 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:09:38,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:09:36" (3/4) ... [2024-11-09 00:09:38,655 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:09:38,707 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:09:38,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:09:38,708 INFO L158 Benchmark]: Toolchain (without parser) took 3332.90ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 127.1MB in the beginning and 95.1MB in the end (delta: 32.0MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,708 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:09:38,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.54ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 107.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.63ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,709 INFO L158 Benchmark]: Boogie Preprocessor took 26.66ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 104.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:09:38,710 INFO L158 Benchmark]: RCFGBuilder took 469.22ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 90.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,710 INFO L158 Benchmark]: CodeCheck took 2240.20ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 90.7MB in the beginning and 97.2MB in the end (delta: -6.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,711 INFO L158 Benchmark]: Witness Printer took 54.68ms. Allocated memory is still 218.1MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:09:38,718 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 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 53 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 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: 549]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) VAL [a={6558:0}] [L534] List t; [L535] List p = a; [L536] a->h = 2 VAL [a={6558:0}, p={6558:0}] [L537] COND TRUE __VERIFIER_nondet_int() [L538] p->h = 1 [L539] t = (List) malloc(sizeof(struct node)) [L540] COND FALSE !(t == 0) VAL [a={6558:0}, p={6558:0}, t={-1:0}] [L541] p->n = t [L542] EXPR p->n [L542] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L544] p->h = 2 [L545] p->n = 0 [L546] p = a VAL [p={6558:0}] [L547] COND FALSE !(p!=0) VAL [p={6558:0}] [L547] COND TRUE p!=0 [L548] EXPR p->h VAL [p={6558:0}] [L548] COND TRUE p->h != 2 [L549] reach_error() VAL [p={6558:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.54ms. Allocated memory is still 167.8MB. Free memory was 127.1MB in the beginning and 107.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.63ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.66ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 104.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 469.22ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 90.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2240.20ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 90.7MB in the beginning and 97.2MB in the end (delta: -6.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Witness Printer took 54.68ms. Allocated memory is still 218.1MB. Free memory was 97.2MB in the beginning and 95.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:09:38,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0247a601-d3ac-46af-971a-6d285c0029a5/bin/ukojak-verify-ImItNfHLgk/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