./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-examples/relax-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB --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 0.3.0-dev-d790fec [2024-11-28 02:43:09,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:43:09,230 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:43:09,235 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:43:09,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:43:09,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:43:09,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:43:09,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:43:09,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:43:09,262 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:43:09,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:43:09,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:43:09,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:43:09,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:43:09,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:43:09,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:43:09,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:43:09,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:43:09,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:43:09,265 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:43:09,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:09,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:09,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:43:09,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:43:09,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:43:09,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:43:09,267 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-28 02:43:09,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:43:09,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:43:09,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:43:09,580 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:43:09,581 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:43:09,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-examples/relax-1.i [2024-11-28 02:43:12,784 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/data/9b39db66d/0ce44760ad1745cea6a80b85359170fa/FLAGe80dd60e5 [2024-11-28 02:43:13,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:43:13,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/sv-benchmarks/c/array-examples/relax-1.i [2024-11-28 02:43:13,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/data/9b39db66d/0ce44760ad1745cea6a80b85359170fa/FLAGe80dd60e5 [2024-11-28 02:43:13,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/data/9b39db66d/0ce44760ad1745cea6a80b85359170fa [2024-11-28 02:43:13,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:43:13,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:43:13,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:43:13,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:43:13,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:43:13,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68027805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13, skipping insertion in model container [2024-11-28 02:43:13,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:43:13,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:43:13,806 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:43:13,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:43:13,899 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:43:13,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13 WrapperNode [2024-11-28 02:43:13,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:43:13,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:43:13,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:43:13,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:43:13,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,958 INFO L138 Inliner]: procedures = 120, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-28 02:43:13,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:43:13,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:43:13,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:43:13,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:43:13,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,991 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]. [2024-11-28 02:43:13,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:13,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,001 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:43:14,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:43:14,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:43:14,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:43:14,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (1/1) ... [2024-11-28 02:43:14,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:43:14,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:43:14,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:43:14,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:43:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:43:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:43:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:43:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:43:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:43:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:43:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:43:14,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:43:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:43:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:43:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:43:14,263 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:43:14,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:43:14,791 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-28 02:43:14,791 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:43:14,807 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:43:14,807 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 02:43:14,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:43:14 BoogieIcfgContainer [2024-11-28 02:43:14,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:43:14,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:43:14,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:43:14,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:43:14,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:43:13" (1/3) ... [2024-11-28 02:43:14,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1014dcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:43:14, skipping insertion in model container [2024-11-28 02:43:14,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:43:13" (2/3) ... [2024-11-28 02:43:14,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1014dcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:43:14, skipping insertion in model container [2024-11-28 02:43:14,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:43:14" (3/3) ... [2024-11-28 02:43:14,825 INFO L128 eAbstractionObserver]: Analyzing ICFG relax-1.i [2024-11-28 02:43:14,845 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:43:14,847 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG relax-1.i that has 3 procedures, 100 locations, 1 initial locations, 3 loop locations, and 32 error locations. [2024-11-28 02:43:14,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:43:14,917 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@47acad34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:43:14,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-28 02:43:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 60 states have (on average 1.8833333333333333) internal successors, (113), 95 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:43:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:43:14,932 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:14,933 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:43:14,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-11-28 02:43:14,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:14,941 INFO L85 PathProgramCache]: Analyzing trace with hash 36330321, now seen corresponding path program 1 times [2024-11-28 02:43:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:43:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810991817] [2024-11-28 02:43:14,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:14,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:43:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:43:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:43:15,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:43:15,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810991817] [2024-11-28 02:43:15,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810991817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:43:15,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:43:15,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:43:15,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562249304] [2024-11-28 02:43:15,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:43:15,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:43:15,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:43:15,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:43:15,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:15,548 INFO L87 Difference]: Start difference. First operand has 100 states, 60 states have (on average 1.8833333333333333) internal successors, (113), 95 states have internal predecessors, (113), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:15,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:43:15,673 INFO L93 Difference]: Finished difference Result 98 states and 115 transitions. [2024-11-28 02:43:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:43:15,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 02:43:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:43:15,685 INFO L225 Difference]: With dead ends: 98 [2024-11-28 02:43:15,686 INFO L226 Difference]: Without dead ends: 96 [2024-11-28 02:43:15,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:43:15,692 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 14 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:43:15,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 180 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:43:15,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-28 02:43:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-28 02:43:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.7758620689655173) internal successors, (103), 91 states have internal predecessors, (103), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:43:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 113 transitions. [2024-11-28 02:43:15,746 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 113 transitions. Word has length 5 [2024-11-28 02:43:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:43:15,747 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 113 transitions. [2024-11-28 02:43:15,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:43:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 113 transitions. [2024-11-28 02:43:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 02:43:15,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:43:15,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:43:15,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:43:15,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2024-11-28 02:43:15,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:43:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash 36330322, now seen corresponding path program 1 times [2024-11-28 02:43:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:43:15,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896204236] [2024-11-28 02:43:15,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:43:15,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:43:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:43:15,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:43:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:43:15,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:43:15,876 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:43:15,877 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2024-11-28 02:43:15,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2024-11-28 02:43:15,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2024-11-28 02:43:15,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2024-11-28 02:43:15,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2024-11-28 02:43:15,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2024-11-28 02:43:15,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2024-11-28 02:43:15,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2024-11-28 02:43:15,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2024-11-28 02:43:15,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:43:15,898 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:43:15,924 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:43:15,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:43:15 BoogieIcfgContainer [2024-11-28 02:43:15,929 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:43:15,931 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:43:15,931 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:43:15,932 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:43:15,932 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:43:14" (3/4) ... [2024-11-28 02:43:15,933 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:43:15,992 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 4. [2024-11-28 02:43:16,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:43:16,053 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142e408a-17ec-45b9-a74a-95c679972b20/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:43:16,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:43:16,056 INFO L158 Benchmark]: Toolchain (without parser) took 2671.63ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 54.8MB in the end (delta: 36.6MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-28 02:43:16,057 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:43:16,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.47ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:43:16,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.44ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:43:16,058 INFO L158 Benchmark]: Boogie Preprocessor took 56.45ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:16,059 INFO L158 Benchmark]: RCFGBuilder took 795.25ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 47.0MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:43:16,059 INFO L158 Benchmark]: TraceAbstraction took 1114.87ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 59.2MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:43:16,059 INFO L158 Benchmark]: Witness Printer took 121.97ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 54.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:43:16,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.47ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.44ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.45ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 795.25ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 47.0MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1114.87ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 59.2MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 121.97ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 54.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. 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 [a={-1:0}, a_length=-2, i=0, pat={-3:0}, pat_length=-3221225472, shift=0] [L582] COND TRUE i