./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd --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 e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:00:25,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:00:25,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 13:00:25,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:00:25,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:00:25,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:00:25,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:00:25,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:00:25,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:00:25,377 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:00:25,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:00:25,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:00:25,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:00:25,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:00:25,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:00:25,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 13:00:25,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:00:25,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:00:25,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:25,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:00:25,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:00:25,382 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_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd 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 -> e4298ca4b283086df2e0e2f17b814348cf7ca285d4c19f0d8a4923f1c5d9a834 [2024-11-13 13:00:25,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:00:25,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:00:25,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:00:25,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:00:25,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:00:25,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i Unable to find full path for "g++" [2024-11-13 13:00:27,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:00:28,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:00:28,004 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2024-11-13 13:00:28,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/data/7dc659a19/6abd7b86e7594786821a340eca314fed/FLAG31b5c2e87 [2024-11-13 13:00:28,261 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/data/7dc659a19/6abd7b86e7594786821a340eca314fed [2024-11-13 13:00:28,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:00:28,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:00:28,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:28,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:00:28,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:00:28,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5569420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28, skipping insertion in model container [2024-11-13 13:00:28,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,305 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:00:28,677 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:00:28,678 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:00:28,679 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:00:28,680 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:00:28,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:28,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:00:28,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:00:28,775 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:00:28,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28 WrapperNode [2024-11-13 13:00:28,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:00:28,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:28,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:00:28,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:00:28,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,834 INFO L138 Inliner]: procedures = 116, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 118 [2024-11-13 13:00:28,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:00:28,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:00:28,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:00:28,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:00:28,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,879 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [4, 3, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0, 0]. The 5 writes are split as follows [1, 1, 2, 1]. [2024-11-13 13:00:28,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:00:28,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:00:28,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:00:28,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:00:28,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (1/1) ... [2024-11-13 13:00:28,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:00:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:28,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:00:28,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:00:29,113 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:00:29,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:00:29,457 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-13 13:00:29,457 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:00:29,474 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:00:29,475 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 13:00:29,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:29 BoogieIcfgContainer [2024-11-13 13:00:29,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:00:29,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:00:29,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:00:29,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:00:29,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:00:28" (1/3) ... [2024-11-13 13:00:29,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73761698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:29, skipping insertion in model container [2024-11-13 13:00:29,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:00:28" (2/3) ... [2024-11-13 13:00:29,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73761698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:29, skipping insertion in model container [2024-11-13 13:00:29,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:29" (3/3) ... [2024-11-13 13:00:29,490 INFO L112 eAbstractionObserver]: Analyzing ICFG knapsack_alloca_unsafe.i [2024-11-13 13:00:29,506 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:00:29,507 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG knapsack_alloca_unsafe.i that has 1 procedures, 63 locations, 1 initial locations, 4 loop locations, and 27 error locations. [2024-11-13 13:00:29,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:00:29,564 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;@17debb21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:00:29,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-13 13:00:29,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 62 states have internal predecessors, (74), 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) [2024-11-13 13:00:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 13:00:29,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:29,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:29,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-13 13:00:29,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029096, now seen corresponding path program 1 times [2024-11-13 13:00:29,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:29,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792649657] [2024-11-13 13:00:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:29,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:30,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:30,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792649657] [2024-11-13 13:00:30,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792649657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:30,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:00:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582714703] [2024-11-13 13:00:30,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:30,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:30,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:30,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:30,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:30,282 INFO L87 Difference]: Start difference. First operand has 63 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 62 states have internal predecessors, (74), 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) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-13 13:00:30,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:30,404 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2024-11-13 13:00:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:30,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-13 13:00:30,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:30,417 INFO L225 Difference]: With dead ends: 62 [2024-11-13 13:00:30,417 INFO L226 Difference]: Without dead ends: 60 [2024-11-13 13:00:30,419 INFO L431 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 [2024-11-13 13:00:30,423 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:30,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 88 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:00:30,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-13 13:00:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-13 13:00:30,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 34 states have (on average 1.9705882352941178) internal successors, (67), 59 states have internal predecessors, (67), 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) [2024-11-13 13:00:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2024-11-13 13:00:30,465 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 7 [2024-11-13 13:00:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:30,466 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2024-11-13 13:00:30,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-13 13:00:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2024-11-13 13:00:30,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 13:00:30,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:30,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:30,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:00:30,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-13 13:00:30,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:30,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029097, now seen corresponding path program 1 times [2024-11-13 13:00:30,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:30,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615408943] [2024-11-13 13:00:30,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:30,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:30,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:30,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615408943] [2024-11-13 13:00:30,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615408943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:30,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:30,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:00:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290089694] [2024-11-13 13:00:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:30,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:00:30,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:30,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:00:30,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:00:30,945 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-13 13:00:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:31,216 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2024-11-13 13:00:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:00:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2024-11-13 13:00:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:31,217 INFO L225 Difference]: With dead ends: 83 [2024-11-13 13:00:31,217 INFO L226 Difference]: Without dead ends: 83 [2024-11-13 13:00:31,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:00:31,218 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 30 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:31,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 207 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:00:31,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-13 13:00:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2024-11-13 13:00:31,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 38 states have (on average 1.894736842105263) internal successors, (72), 63 states have internal predecessors, (72), 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) [2024-11-13 13:00:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2024-11-13 13:00:31,230 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 7 [2024-11-13 13:00:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:31,230 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2024-11-13 13:00:31,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2024-11-13 13:00:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2024-11-13 13:00:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 13:00:31,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:31,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:31,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:00:31,231 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-11-13 13:00:31,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876139, now seen corresponding path program 1 times [2024-11-13 13:00:31,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:31,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288127661] [2024-11-13 13:00:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:00:31,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:00:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:00:31,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:00:31,321 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:00:31,322 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2024-11-13 13:00:31,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2024-11-13 13:00:31,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2024-11-13 13:00:31,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2024-11-13 13:00:31,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2024-11-13 13:00:31,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2024-11-13 13:00:31,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-11-13 13:00:31,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2024-11-13 13:00:31,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2024-11-13 13:00:31,327 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2024-11-13 13:00:31,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2024-11-13 13:00:31,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-11-13 13:00:31,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-11-13 13:00:31,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK (0 of 27 remaining) [2024-11-13 13:00:31,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:00:31,337 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 13:00:31,359 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:00:31,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:00:31 BoogieIcfgContainer [2024-11-13 13:00:31,367 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:00:31,368 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:00:31,368 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:00:31,368 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:00:31,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:29" (3/4) ... [2024-11-13 13:00:31,373 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:00:31,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:00:31,417 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:00:31,419 INFO L158 Benchmark]: Toolchain (without parser) took 3153.33ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 72.1MB in the end (delta: 20.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-11-13 13:00:31,419 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:00:31,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.90ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:00:31,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.83ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:00:31,422 INFO L158 Benchmark]: Boogie Preprocessor took 73.21ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:00:31,422 INFO L158 Benchmark]: RCFGBuilder took 567.59ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 51.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:00:31,423 INFO L158 Benchmark]: TraceAbstraction took 1885.89ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 74.0MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:00:31,423 INFO L158 Benchmark]: Witness Printer took 49.29ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:00:31,425 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.90ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.83ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 73.21ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 567.59ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 51.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1885.89ms. Allocated memory is still 117.4MB. Free memory was 51.0MB in the beginning and 74.0MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.29ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 72.1MB in the end (delta: 1.9MB). There was no memory consumed. 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: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND FALSE !(N < 1) VAL [M=0, N=1073741824] [L532] COND TRUE M < 1 [L533] M = 1 VAL [M=1, N=1073741824] [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; VAL [M=1, N=1073741824, best={5:0}, cost={6:0}, i=0, size={3:0}, val={2:0}] [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 526]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 63 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 164 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 131 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 19 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 13:00:31,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea506c9-dfff-4010-88a0-c3ef56ceff83/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)