./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test26-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/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_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test26-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:51:34,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:51:34,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:51:34,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:51:34,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:51:34,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:51:34,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:51:34,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:51:34,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:51:34,416 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:51:34,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:51:34,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:51:34,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:51:34,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:51:34,419 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:51:34,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:51:34,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:51:34,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:51:34,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:51:34,422 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:34,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:34,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:51:34,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:34,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:34,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:51:34,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:51:34,425 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_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e16a9039af683ff71136e4fdf1d6e681546010da6b9063cc41cb578540720f5 [2024-11-28 02:51:34,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:51:34,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:51:34,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:51:34,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:51:34,843 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:51:34,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-regression/test26-1.c [2024-11-28 02:51:37,991 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/data/3b7ded098/e01f3131b6ba44b38564fb15369cf510/FLAG0d6a7d5f9 [2024-11-28 02:51:38,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:51:38,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/sv-benchmarks/c/ldv-regression/test26-1.c [2024-11-28 02:51:38,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/data/3b7ded098/e01f3131b6ba44b38564fb15369cf510/FLAG0d6a7d5f9 [2024-11-28 02:51:38,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/data/3b7ded098/e01f3131b6ba44b38564fb15369cf510 [2024-11-28 02:51:38,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:51:38,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:51:38,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:38,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:51:38,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:51:38,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67785753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38, skipping insertion in model container [2024-11-28 02:51:38,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:51:38,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:38,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:51:38,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:38,669 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:51:38,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38 WrapperNode [2024-11-28 02:51:38,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:38,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:38,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:51:38,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:51:38,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,713 INFO L138 Inliner]: procedures = 12, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2024-11-28 02:51:38,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:38,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:51:38,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:51:38,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:51:38,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,751 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 1 writes are split as follows [0, 1]. [2024-11-28 02:51:38,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,761 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:51:38,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:51:38,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:51:38,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:51:38,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (1/1) ... [2024-11-28 02:51:38,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:38,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:51:38,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:51:38,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:51:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:51:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:51:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:51:38,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:51:38,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:51:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:51:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:51:38,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:51:38,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:51:38,983 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:51:38,986 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:51:39,203 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-28 02:51:39,203 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:51:39,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:51:39,218 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:51:39,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:39 BoogieIcfgContainer [2024-11-28 02:51:39,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:51:39,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:51:39,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:51:39,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:51:39,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:51:38" (1/3) ... [2024-11-28 02:51:39,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5061ea1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:39, skipping insertion in model container [2024-11-28 02:51:39,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:38" (2/3) ... [2024-11-28 02:51:39,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5061ea1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:39, skipping insertion in model container [2024-11-28 02:51:39,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:39" (3/3) ... [2024-11-28 02:51:39,237 INFO L128 eAbstractionObserver]: Analyzing ICFG test26-1.c [2024-11-28 02:51:39,266 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:51:39,270 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test26-1.c that has 1 procedures, 25 locations, 1 initial locations, 0 loop locations, and 10 error locations. [2024-11-28 02:51:39,339 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:51:39,361 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;@199cd1e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:51:39,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-28 02:51:39,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 02:51:39,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:39,376 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 02:51:39,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:39,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2024-11-28 02:51:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:39,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425690346] [2024-11-28 02:51:39,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:39,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:39,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425690346] [2024-11-28 02:51:39,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425690346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:39,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:39,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:39,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369669219] [2024-11-28 02:51:39,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:39,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:39,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:39,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:39,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:39,790 INFO L87 Difference]: Start difference. First operand has 25 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 24 states have internal predecessors, (25), 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 4 states, 3 states have (on average 1.0) 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 02:51:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:39,915 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2024-11-28 02:51:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:39,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 02:51:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:39,925 INFO L225 Difference]: With dead ends: 22 [2024-11-28 02:51:39,925 INFO L226 Difference]: Without dead ends: 20 [2024-11-28 02:51:39,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:51:39,934 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:39,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:51:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-28 02:51:39,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-28 02:51:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2024-11-28 02:51:39,980 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 3 [2024-11-28 02:51:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:39,981 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2024-11-28 02:51:39,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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 02:51:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2024-11-28 02:51:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 02:51:39,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:39,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 02:51:39,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:51:39,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:39,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-28 02:51:39,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:39,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117514316] [2024-11-28 02:51:39,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:40,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117514316] [2024-11-28 02:51:40,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117514316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:40,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:40,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:40,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825395461] [2024-11-28 02:51:40,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:40,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:40,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:40,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:40,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:40,359 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 4 states, 3 states have (on average 1.0) 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 02:51:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:40,450 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2024-11-28 02:51:40,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:40,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 02:51:40,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:40,452 INFO L225 Difference]: With dead ends: 18 [2024-11-28 02:51:40,452 INFO L226 Difference]: Without dead ends: 18 [2024-11-28 02:51:40,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:51:40,455 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:40,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 18 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:51:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-28 02:51:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-28 02:51:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:40,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2024-11-28 02:51:40,462 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 3 [2024-11-28 02:51:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:40,463 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2024-11-28 02:51:40,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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 02:51:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2024-11-28 02:51:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 02:51:40,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:40,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 02:51:40,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:51:40,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:40,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash 925543, now seen corresponding path program 1 times [2024-11-28 02:51:40,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:40,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276116157] [2024-11-28 02:51:40,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:40,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:40,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:40,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:40,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276116157] [2024-11-28 02:51:40,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276116157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:40,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:40,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:40,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159817324] [2024-11-28 02:51:40,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:40,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:40,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:40,653 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:40,723 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2024-11-28 02:51:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:40,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:40,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:40,726 INFO L225 Difference]: With dead ends: 17 [2024-11-28 02:51:40,727 INFO L226 Difference]: Without dead ends: 17 [2024-11-28 02:51:40,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:51:40,728 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:40,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:51:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-28 02:51:40,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-28 02:51:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 16 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:40,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2024-11-28 02:51:40,737 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 4 [2024-11-28 02:51:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:40,737 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2024-11-28 02:51:40,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:40,738 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2024-11-28 02:51:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 02:51:40,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:40,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 02:51:40,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:51:40,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:40,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash 925544, now seen corresponding path program 1 times [2024-11-28 02:51:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:40,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981153779] [2024-11-28 02:51:40,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981153779] [2024-11-28 02:51:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981153779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:40,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:40,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147001727] [2024-11-28 02:51:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:40,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:40,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:40,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:40,999 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:41,062 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-28 02:51:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:41,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:41,064 INFO L225 Difference]: With dead ends: 16 [2024-11-28 02:51:41,064 INFO L226 Difference]: Without dead ends: 16 [2024-11-28 02:51:41,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:51:41,067 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:41,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:51:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-28 02:51:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-28 02:51:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-28 02:51:41,077 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 4 [2024-11-28 02:51:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:41,077 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-28 02:51:41,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) 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 02:51:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-28 02:51:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 02:51:41,078 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:41,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:41,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:51:41,079 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:41,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:41,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1803026949, now seen corresponding path program 1 times [2024-11-28 02:51:41,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:41,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615083753] [2024-11-28 02:51:41,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:41,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:41,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615083753] [2024-11-28 02:51:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615083753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:51:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977215068] [2024-11-28 02:51:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:41,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:41,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:41,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:41,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:41,163 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:41,196 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-11-28 02:51:41,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:41,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 02:51:41,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:41,198 INFO L225 Difference]: With dead ends: 15 [2024-11-28 02:51:41,198 INFO L226 Difference]: Without dead ends: 15 [2024-11-28 02:51:41,199 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 02:51:41,199 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:41,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:51:41,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-28 02:51:41,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-28 02:51:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-11-28 02:51:41,206 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 7 [2024-11-28 02:51:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:41,206 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-11-28 02:51:41,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-28 02:51:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-28 02:51:41,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:41,207 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:41,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:51:41,208 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:41,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:41,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1803026950, now seen corresponding path program 1 times [2024-11-28 02:51:41,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:41,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80072328] [2024-11-28 02:51:41,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:41,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:41,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:41,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80072328] [2024-11-28 02:51:41,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80072328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:41,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:41,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479461918] [2024-11-28 02:51:41,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:41,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:51:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:41,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:51:41,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:51:41,388 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:41,430 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-28 02:51:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:51:41,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-28 02:51:41,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:41,431 INFO L225 Difference]: With dead ends: 14 [2024-11-28 02:51:41,431 INFO L226 Difference]: Without dead ends: 14 [2024-11-28 02:51:41,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:51:41,432 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:41,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:51:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-28 02:51:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-28 02:51:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2024-11-28 02:51:41,436 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 7 [2024-11-28 02:51:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:41,436 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2024-11-28 02:51:41,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-28 02:51:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:51:41,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:41,437 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:41,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:51:41,437 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:41,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1114819219, now seen corresponding path program 1 times [2024-11-28 02:51:41,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:41,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932116461] [2024-11-28 02:51:41,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:41,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:41,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:41,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:41,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932116461] [2024-11-28 02:51:41,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932116461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:41,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:51:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774131270] [2024-11-28 02:51:41,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:41,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:51:41,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:41,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:51:41,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:51:41,510 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:41,528 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2024-11-28 02:51:41,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:51:41,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-28 02:51:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:41,531 INFO L225 Difference]: With dead ends: 13 [2024-11-28 02:51:41,531 INFO L226 Difference]: Without dead ends: 12 [2024-11-28 02:51:41,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:51:41,532 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:41,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:51:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-28 02:51:41,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-28 02:51:41,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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 02:51:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-11-28 02:51:41,538 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-11-28 02:51:41,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:41,538 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-11-28 02:51:41,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:51:41,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-11-28 02:51:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 02:51:41,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:51:41,539 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:41,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:51:41,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2024-11-28 02:51:41,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:51:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 199655338, now seen corresponding path program 1 times [2024-11-28 02:51:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:51:41,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699555095] [2024-11-28 02:51:41,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:51:41,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:51:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:51:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:51:42,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:51:42,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699555095] [2024-11-28 02:51:42,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699555095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:51:42,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:51:42,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:51:42,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098971766] [2024-11-28 02:51:42,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:51:42,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:51:42,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:51:42,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:51:42,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:51:42,147 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 02:51:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:51:42,235 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2024-11-28 02:51:42,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:51:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 02:51:42,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:51:42,236 INFO L225 Difference]: With dead ends: 9 [2024-11-28 02:51:42,236 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:51:42,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:51:42,238 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:51:42,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:51:42,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:51:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:51:42,242 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 02:51:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:51:42,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-11-28 02:51:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:51:42,243 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:51:42,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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 02:51:42,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:51:42,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:51:42,247 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 10 remaining) [2024-11-28 02:51:42,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2024-11-28 02:51:42,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2024-11-28 02:51:42,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2024-11-28 02:51:42,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2024-11-28 02:51:42,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2024-11-28 02:51:42,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2024-11-28 02:51:42,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2024-11-28 02:51:42,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (1 of 10 remaining) [2024-11-28 02:51:42,250 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2024-11-28 02:51:42,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:51:42,256 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:51:42,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:51:42,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:51:42 BoogieIcfgContainer [2024-11-28 02:51:42,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:51:42,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:51:42,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:51:42,265 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:51:42,266 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:39" (3/4) ... [2024-11-28 02:51:42,269 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:51:42,282 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 02:51:42,282 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 02:51:42,282 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:51:42,282 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:51:42,387 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:51:42,392 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:51:42,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:51:42,393 INFO L158 Benchmark]: Toolchain (without parser) took 4027.90ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 50.5MB in the end (delta: 44.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-28 02:51:42,394 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:51:42,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.95ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 84.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:51:42,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.57ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:51:42,395 INFO L158 Benchmark]: Boogie Preprocessor took 59.60ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:51:42,395 INFO L158 Benchmark]: RCFGBuilder took 443.13ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 70.8MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:51:42,395 INFO L158 Benchmark]: TraceAbstraction took 3039.46ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 54.9MB in the end (delta: 15.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-28 02:51:42,395 INFO L158 Benchmark]: Witness Printer took 128.18ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 50.5MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:51:42,402 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.95ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 84.6MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.57ms. Allocated memory is still 117.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.60ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 443.13ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 70.8MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3039.46ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 54.9MB in the end (delta: 15.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 128.18ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 50.5MB in the end (delta: 4.4MB). 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: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: 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, 25 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 67 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 35, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:51:42,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b53789d9-af13-4c27-a9cb-682b0a8a7943/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE