./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:55:43,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:55:43,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 11:55:43,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:55:43,349 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:55:43,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:55:43,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:55:43,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:55:43,393 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:55:43,399 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:55:43,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:55:43,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:55:43,402 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:55:43,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:55:43,404 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:55:43,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:55:43,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:55:43,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:55:43,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:55:43,406 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:55:43,408 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:55:43,409 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:55:43,409 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:55:43,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:55:43,410 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:55:43,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:55:43,411 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:55:43,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:55:43,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:55:43,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:55:43,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:55:43,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:55:43,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:43,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:55:43,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:55:43,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:55:43,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:55:43,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:55:43,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:55:43,417 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:55:43,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:55:43,418 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_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2023-11-26 11:55:43,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:55:43,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:55:43,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:55:43,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:55:43,800 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:55:43,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/array-examples/relax-1.i [2023-11-26 11:55:46,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:55:47,179 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:55:47,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/sv-benchmarks/c/array-examples/relax-1.i [2023-11-26 11:55:47,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/data/a4a40c048/ebf58a2d3f7642e59cdaf4686518e009/FLAG7f5d80f33 [2023-11-26 11:55:47,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/data/a4a40c048/ebf58a2d3f7642e59cdaf4686518e009 [2023-11-26 11:55:47,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:55:47,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:55:47,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:47,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:55:47,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:55:47,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478cf066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47, skipping insertion in model container [2023-11-26 11:55:47,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:55:47,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:47,708 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:55:47,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:55:47,782 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:55:47,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47 WrapperNode [2023-11-26 11:55:47,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:55:47,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:47,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:55:47,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:55:47,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,834 INFO L138 Inliner]: procedures = 120, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 145 [2023-11-26 11:55:47,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:55:47,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:55:47,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:55:47,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:55:47,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,874 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 6, 6]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-26 11:55:47,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:55:47,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:55:47,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:55:47,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:55:47,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (1/1) ... [2023-11-26 11:55:47,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:55:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:55:47,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:55:47,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:55:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:55:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:55:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:55:47,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:55:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:55:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:55:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:55:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:55:47,987 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:55:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:55:47,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:55:47,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:55:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:55:48,145 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:55:48,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:55:48,647 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:55:48,681 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:55:48,681 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:55:48,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:48 BoogieIcfgContainer [2023-11-26 11:55:48,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:55:48,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:55:48,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:55:48,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:55:48,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:55:47" (1/3) ... [2023-11-26 11:55:48,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22819e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:48, skipping insertion in model container [2023-11-26 11:55:48,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:55:47" (2/3) ... [2023-11-26 11:55:48,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22819e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:55:48, skipping insertion in model container [2023-11-26 11:55:48,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:48" (3/3) ... [2023-11-26 11:55:48,692 INFO L112 eAbstractionObserver]: Analyzing ICFG relax-1.i [2023-11-26 11:55:48,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:55:48,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-26 11:55:48,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:55:48,776 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@57d8f7ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:55:48,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-11-26 11:55:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 57 states have (on average 1.9298245614035088) internal successors, (110), 89 states have internal predecessors, (110), 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) [2023-11-26 11:55:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:55:48,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:55:48,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:55:48,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2023-11-26 11:55:48,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash 7343739, now seen corresponding path program 1 times [2023-11-26 11:55:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:48,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720823474] [2023-11-26 11:55:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:55:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:55:49,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:55:49,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720823474] [2023-11-26 11:55:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720823474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:55:49,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:55:49,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:55:49,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067985810] [2023-11-26 11:55:49,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:55:49,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:55:49,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:55:49,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:55:49,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:55:49,349 INFO L87 Difference]: Start difference. First operand has 97 states, 57 states have (on average 1.9298245614035088) internal successors, (110), 89 states have internal predecessors, (110), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:55:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:55:49,470 INFO L93 Difference]: Finished difference Result 95 states and 112 transitions. [2023-11-26 11:55:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:55:49,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 11:55:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:55:49,484 INFO L225 Difference]: With dead ends: 95 [2023-11-26 11:55:49,484 INFO L226 Difference]: Without dead ends: 94 [2023-11-26 11:55:49,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:55:49,492 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 15 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:55:49,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 169 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:55:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-26 11:55:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-26 11:55:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 86 states have internal predecessors, (101), 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) [2023-11-26 11:55:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 111 transitions. [2023-11-26 11:55:49,561 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 111 transitions. Word has length 4 [2023-11-26 11:55:49,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:55:49,562 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 111 transitions. [2023-11-26 11:55:49,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:55:49,562 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 111 transitions. [2023-11-26 11:55:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:55:49,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:55:49,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:55:49,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:55:49,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2023-11-26 11:55:49,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:55:49,565 INFO L85 PathProgramCache]: Analyzing trace with hash 7343740, now seen corresponding path program 1 times [2023-11-26 11:55:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:55:49,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812719734] [2023-11-26 11:55:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:55:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:55:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:49,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:55:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:55:49,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:55:49,723 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:55:49,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2023-11-26 11:55:49,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2023-11-26 11:55:49,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2023-11-26 11:55:49,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2023-11-26 11:55:49,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2023-11-26 11:55:49,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2023-11-26 11:55:49,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2023-11-26 11:55:49,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2023-11-26 11:55:49,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2023-11-26 11:55:49,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2023-11-26 11:55:49,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2023-11-26 11:55:49,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2023-11-26 11:55:49,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2023-11-26 11:55:49,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2023-11-26 11:55:49,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2023-11-26 11:55:49,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2023-11-26 11:55:49,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2023-11-26 11:55:49,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2023-11-26 11:55:49,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2023-11-26 11:55:49,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2023-11-26 11:55:49,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2023-11-26 11:55:49,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2023-11-26 11:55:49,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2023-11-26 11:55:49,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2023-11-26 11:55:49,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2023-11-26 11:55:49,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2023-11-26 11:55:49,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2023-11-26 11:55:49,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2023-11-26 11:55:49,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2023-11-26 11:55:49,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2023-11-26 11:55:49,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2023-11-26 11:55:49,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2023-11-26 11:55:49,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:55:49,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:55:49,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:55:49,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:55:49 BoogieIcfgContainer [2023-11-26 11:55:49,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:55:49,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:55:49,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:55:49,781 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:55:49,781 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:55:48" (3/4) ... [2023-11-26 11:55:49,783 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 11:55:49,823 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50311491-111a-4dd4-8177-d592dc173a6e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:55:49,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:55:49,824 INFO L158 Benchmark]: Toolchain (without parser) took 2596.75ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 93.2MB in the beginning and 92.9MB in the end (delta: 293.9kB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,825 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:55:49,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.33ms. Allocated memory is still 134.2MB. Free memory was 92.9MB in the beginning and 75.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.89ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 72.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,826 INFO L158 Benchmark]: Boogie Preprocessor took 61.18ms. Allocated memory is still 134.2MB. Free memory was 72.7MB in the beginning and 70.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,827 INFO L158 Benchmark]: RCFGBuilder took 785.22ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 70.1MB in the beginning and 137.8MB in the end (delta: -67.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,827 INFO L158 Benchmark]: TraceAbstraction took 1094.51ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 94.7MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,828 INFO L158 Benchmark]: Witness Printer took 43.22ms. Allocated memory is still 182.5MB. Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:55:49,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.33ms. Allocated memory is still 134.2MB. Free memory was 92.9MB in the beginning and 75.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.89ms. Allocated memory is still 134.2MB. Free memory was 74.9MB in the beginning and 72.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.18ms. Allocated memory is still 134.2MB. Free memory was 72.7MB in the beginning and 70.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 785.22ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 70.1MB in the beginning and 137.8MB in the end (delta: -67.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1094.51ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 94.7MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 43.22ms. Allocated memory is still 182.5MB. Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1073741824, a={-1:0}, a={-1:0}, a_length=4294967294, i=0, pat={-3:0}, pat={-3:0}, pat_length=1073741824, shift=0] [L582] COND TRUE i