./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/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_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/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 64bit --witnessprinter.graph.data.programhash da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:54:13,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:54:13,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-28 04:54:13,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:54:13,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:54:13,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:54:13,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:54:13,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:54:13,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:54:13,946 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:54:13,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:54:13,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:54:13,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:54:13,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:54:13,948 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:54:13,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:54:13,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:54:13,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:54:13,948 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:54:13,949 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:54:13,950 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:54:13,950 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:54:13,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:54:13,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:54:13,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:54:13,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:54:13,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:54:13,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:54:13,951 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:54:13,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:54:13,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:54:13,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:54:13,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:54:13,952 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_10679e88-020f-48b8-b427-a9181a321d9c/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da65a08be7a694e995d17e45362055fa5f60ddf40e08c5ba36204464b294ccf0 [2024-11-28 04:54:14,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:54:14,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:54:14,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:54:14,312 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:54:14,312 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:54:14,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2024-11-28 04:54:17,548 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/data/cd25d71bd/ade7d17a8aae44c79fea442326418e3e/FLAG14f75808d [2024-11-28 04:54:17,907 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:54:17,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/sv-benchmarks/c/termination-memory-alloca/aviad_true-alloca.i [2024-11-28 04:54:17,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/data/cd25d71bd/ade7d17a8aae44c79fea442326418e3e/FLAG14f75808d [2024-11-28 04:54:18,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/data/cd25d71bd/ade7d17a8aae44c79fea442326418e3e [2024-11-28 04:54:18,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:54:18,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:54:18,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:54:18,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:54:18,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:54:18,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58347240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18, skipping insertion in model container [2024-11-28 04:54:18,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:54:18,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:54:18,603 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:54:18,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:54:18,722 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:54:18,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18 WrapperNode [2024-11-28 04:54:18,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:54:18,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:54:18,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:54:18,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:54:18,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,769 INFO L138 Inliner]: procedures = 111, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-28 04:54:18,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:54:18,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:54:18,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:54:18,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:54:18,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,806 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [4, 3, 7]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 7 writes are split as follows [2, 2, 3]. [2024-11-28 04:54:18,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,812 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:54:18,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:54:18,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:54:18,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:54:18,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (1/1) ... [2024-11-28 04:54:18,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:54:18,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:54:18,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:54:18,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:54:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:54:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:54:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:54:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:54:19,032 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:54:19,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:54:19,329 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-11-28 04:54:19,329 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:54:19,342 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:54:19,342 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:54:19,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:19 BoogieIcfgContainer [2024-11-28 04:54:19,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:54:19,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:54:19,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:54:19,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:54:19,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:54:18" (1/3) ... [2024-11-28 04:54:19,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43eacebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:54:19, skipping insertion in model container [2024-11-28 04:54:19,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:54:18" (2/3) ... [2024-11-28 04:54:19,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43eacebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:54:19, skipping insertion in model container [2024-11-28 04:54:19,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:19" (3/3) ... [2024-11-28 04:54:19,356 INFO L128 eAbstractionObserver]: Analyzing ICFG aviad_true-alloca.i [2024-11-28 04:54:19,377 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:54:19,379 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aviad_true-alloca.i that has 1 procedures, 55 locations, 1 initial locations, 1 loop locations, and 29 error locations. [2024-11-28 04:54:19,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:54:19,459 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;@1e691d07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:54:19,459 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-28 04:54:19,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 25 states have (on average 2.28) internal successors, (57), 54 states have internal predecessors, (57), 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 04:54:19,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:54:19,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:19,475 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:54:19,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:19,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-28 04:54:19,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:19,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453296004] [2024-11-28 04:54:19,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:19,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:20,026 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 04:54:20,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453296004] [2024-11-28 04:54:20,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453296004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:20,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:20,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607673319] [2024-11-28 04:54:20,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:20,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:20,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:20,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:20,079 INFO L87 Difference]: Start difference. First operand has 55 states, 25 states have (on average 2.28) internal successors, (57), 54 states have internal predecessors, (57), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:54:20,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:20,228 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2024-11-28 04:54:20,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:20,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:54:20,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:20,240 INFO L225 Difference]: With dead ends: 48 [2024-11-28 04:54:20,240 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 04:54:20,243 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 04:54:20,249 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:20,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 21 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 04:54:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-28 04:54:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.9583333333333333) internal successors, (47), 45 states have internal predecessors, (47), 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 04:54:20,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2024-11-28 04:54:20,300 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 3 [2024-11-28 04:54:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:20,300 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2024-11-28 04:54:20,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:54:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2024-11-28 04:54:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:54:20,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:20,301 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:54:20,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:54:20,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:20,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-28 04:54:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:20,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072482066] [2024-11-28 04:54:20,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:20,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:20,694 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 04:54:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072482066] [2024-11-28 04:54:20,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072482066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:20,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645044473] [2024-11-28 04:54:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:20,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:20,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:20,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:20,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:20,699 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:54:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:20,784 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2024-11-28 04:54:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:20,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:54:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:20,786 INFO L225 Difference]: With dead ends: 39 [2024-11-28 04:54:20,786 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 04:54:20,786 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 04:54:20,788 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 36 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:20,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 21 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:20,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 04:54:20,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 04:54:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 38 states have internal predecessors, (40), 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 04:54:20,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2024-11-28 04:54:20,793 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 3 [2024-11-28 04:54:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:20,794 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2024-11-28 04:54:20,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 04:54:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2024-11-28 04:54:20,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:54:20,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:20,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:54:20,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:54:20,795 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:20,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2024-11-28 04:54:20,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:20,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734001542] [2024-11-28 04:54:20,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:20,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:20,932 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 04:54:20,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734001542] [2024-11-28 04:54:20,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734001542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:20,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:20,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:20,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429563191] [2024-11-28 04:54:20,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:20,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:20,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:20,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:20,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:20,938 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:21,016 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-11-28 04:54:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:21,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:54:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:21,017 INFO L225 Difference]: With dead ends: 36 [2024-11-28 04:54:21,018 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 04:54:21,018 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 04:54:21,019 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:21,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 15 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 04:54:21,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 04:54:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 35 states have internal predecessors, (37), 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 04:54:21,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2024-11-28 04:54:21,024 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 4 [2024-11-28 04:54:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:21,025 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2024-11-28 04:54:21,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:21,025 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2024-11-28 04:54:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 04:54:21,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:21,026 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 04:54:21,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:54:21,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:21,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2024-11-28 04:54:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3480630] [2024-11-28 04:54:21,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:21,193 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 04:54:21,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:21,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3480630] [2024-11-28 04:54:21,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3480630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:21,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:21,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:21,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954660092] [2024-11-28 04:54:21,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:21,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:21,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:21,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:21,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:21,195 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:21,268 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2024-11-28 04:54:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:21,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-28 04:54:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:21,269 INFO L225 Difference]: With dead ends: 33 [2024-11-28 04:54:21,269 INFO L226 Difference]: Without dead ends: 33 [2024-11-28 04:54:21,270 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 04:54:21,271 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:21,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 18 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:21,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-28 04:54:21,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-28 04:54:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 32 states have internal predecessors, (34), 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 04:54:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2024-11-28 04:54:21,282 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 4 [2024-11-28 04:54:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:21,282 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2024-11-28 04:54:21,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:54:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2024-11-28 04:54:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 04:54:21,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:21,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 04:54:21,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:54:21,283 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:21,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 28691812, now seen corresponding path program 1 times [2024-11-28 04:54:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:21,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201007545] [2024-11-28 04:54:21,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:21,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:21,429 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 04:54:21,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201007545] [2024-11-28 04:54:21,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201007545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:21,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:21,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:21,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040167432] [2024-11-28 04:54:21,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:21,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:21,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:21,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:21,433 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. 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 04:54:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:21,506 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-11-28 04:54:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:21,507 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 04:54:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:21,508 INFO L225 Difference]: With dead ends: 29 [2024-11-28 04:54:21,508 INFO L226 Difference]: Without dead ends: 29 [2024-11-28 04:54:21,508 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 04:54:21,509 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:21,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 12 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:21,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-28 04:54:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-28 04:54:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 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 04:54:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-28 04:54:21,520 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 5 [2024-11-28 04:54:21,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:21,520 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-28 04:54:21,520 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 04:54:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-28 04:54:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 04:54:21,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:21,521 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 04:54:21,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:54:21,521 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:21,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:21,522 INFO L85 PathProgramCache]: Analyzing trace with hash 28691813, now seen corresponding path program 1 times [2024-11-28 04:54:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:21,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122270700] [2024-11-28 04:54:21,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:21,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:21,658 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 04:54:21,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:21,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122270700] [2024-11-28 04:54:21,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122270700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:21,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:54:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235627701] [2024-11-28 04:54:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:21,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:54:21,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:21,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:54:21,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:54:21,663 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. 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 04:54:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:21,719 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-28 04:54:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:54:21,720 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 04:54:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:21,720 INFO L225 Difference]: With dead ends: 25 [2024-11-28 04:54:21,720 INFO L226 Difference]: Without dead ends: 25 [2024-11-28 04:54:21,721 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 04:54:21,722 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:54:21,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-28 04:54:21,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-28 04:54:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 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 04:54:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-28 04:54:21,732 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 5 [2024-11-28 04:54:21,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:21,732 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-28 04:54:21,732 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 04:54:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-28 04:54:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:54:21,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:54:21,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:21,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:54:21,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2024-11-28 04:54:21,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:54:21,735 INFO L85 PathProgramCache]: Analyzing trace with hash 324882735, now seen corresponding path program 1 times [2024-11-28 04:54:21,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:54:21,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414524998] [2024-11-28 04:54:21,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:54:21,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:54:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:54:22,053 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 04:54:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:54:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414524998] [2024-11-28 04:54:22,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414524998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:54:22,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:54:22,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:54:22,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139088927] [2024-11-28 04:54:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:54:22,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:54:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:54:22,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:54:22,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:54:22,057 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 04:54:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:54:22,133 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2024-11-28 04:54:22,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:54:22,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-28 04:54:22,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:54:22,134 INFO L225 Difference]: With dead ends: 24 [2024-11-28 04:54:22,134 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:54:22,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:54:22,135 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17 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 [2024-11-28 04:54:22,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:54:22,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:54:22,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:54:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 04:54:22,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:54:22,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-28 04:54:22,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:54:22,140 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:54:22,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 04:54:22,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:54:22,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:54:22,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2024-11-28 04:54:22,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 29 remaining) [2024-11-28 04:54:22,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2024-11-28 04:54:22,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2024-11-28 04:54:22,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2024-11-28 04:54:22,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2024-11-28 04:54:22,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2024-11-28 04:54:22,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2024-11-28 04:54:22,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2024-11-28 04:54:22,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2024-11-28 04:54:22,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2024-11-28 04:54:22,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 29 remaining) [2024-11-28 04:54:22,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 29 remaining) [2024-11-28 04:54:22,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 29 remaining) [2024-11-28 04:54:22,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2024-11-28 04:54:22,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:54:22,153 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:54:22,157 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:54:22,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:54:22 BoogieIcfgContainer [2024-11-28 04:54:22,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:54:22,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:54:22,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:54:22,165 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:54:22,166 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:54:19" (3/4) ... [2024-11-28 04:54:22,169 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:54:22,182 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 04:54:22,182 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:54:22,183 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:54:22,183 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:54:22,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:54:22,292 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:54:22,292 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:54:22,293 INFO L158 Benchmark]: Toolchain (without parser) took 4173.26ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 32.2MB in the end (delta: 59.1MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2024-11-28 04:54:22,293 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:22,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.28ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 74.7MB in the end (delta: 16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:54:22,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.27ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:22,294 INFO L158 Benchmark]: Boogie Preprocessor took 52.43ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:22,295 INFO L158 Benchmark]: RCFGBuilder took 519.90ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 56.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:54:22,295 INFO L158 Benchmark]: TraceAbstraction took 2816.36ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 36.6MB in the end (delta: 18.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-11-28 04:54:22,295 INFO L158 Benchmark]: Witness Printer took 127.85ms. Allocated memory is still 117.4MB. Free memory was 36.6MB in the beginning and 32.2MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:54:22,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.28ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 74.7MB in the end (delta: 16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.27ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 73.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.43ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.90ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 56.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2816.36ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 36.6MB in the end (delta: 18.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 127.85ms. Allocated memory is still 117.4MB. Free memory was 36.6MB in the beginning and 32.2MB in the end (delta: 4.5MB). 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 562]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 104 mSDtfsCounter, 188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:54:22,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10679e88-020f-48b8-b427-a9181a321d9c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE