./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:29:03,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:29:03,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:29:03,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:29:03,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:29:03,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:29:03,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:29:03,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:29:03,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:29:03,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:29:03,266 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:29:03,267 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:29:03,268 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:29:03,269 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:29:03,270 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:29:03,270 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:29:03,271 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:29:03,271 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:29:03,272 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:29:03,272 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:29:03,273 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:29:03,273 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:29:03,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:29:03,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:29:03,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:29:03,276 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:29:03,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:29:03,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:29:03,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:29:03,278 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:29:03,279 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:29:03,280 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:29:03,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:29:03,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:29:03,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:29:03,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:29:03,281 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:29:03,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:29:03,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:29:03,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:03,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:29:03,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:29:03,283 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:29:03,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:29:03,283 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:29:03,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:29:03,284 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00ab4006d72abca4f35a64fe9dabb6d6d9b6871c611e836e638cfc5bf3cdc124 [2023-11-06 20:29:03,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:29:03,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:29:03,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:29:03,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:29:03,586 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:29:03,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-11-06 20:29:06,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:07,038 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:07,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2023-11-06 20:29:07,054 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/data/e94d3f36a/fa19d8f71adb4c358e9b050ced0f1481/FLAG36a12e6b5 [2023-11-06 20:29:07,069 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/data/e94d3f36a/fa19d8f71adb4c358e9b050ced0f1481 [2023-11-06 20:29:07,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:07,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:07,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:07,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:07,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:07,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f6d984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07, skipping insertion in model container [2023-11-06 20:29:07,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:07,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:07,543 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:29:07,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:07,634 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:29:07,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07 WrapperNode [2023-11-06 20:29:07,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:07,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:07,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:29:07,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:29:07,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,704 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-06 20:29:07,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:07,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:29:07,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:29:07,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:29:07,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:29:07,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:29:07,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:29:07,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:29:07,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (1/1) ... [2023-11-06 20:29:07,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:07,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:29:07,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:29:07,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:29:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 20:29:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 20:29:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:29:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:29:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 20:29:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 20:29:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:29:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 20:29:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:29:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:29:07,852 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:29:07,992 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:29:07,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:29:08,170 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:29:08,178 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:29:08,178 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:29:08,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:08 BoogieIcfgContainer [2023-11-06 20:29:08,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:29:08,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:29:08,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:29:08,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:29:08,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:07" (1/3) ... [2023-11-06 20:29:08,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fd3070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:08, skipping insertion in model container [2023-11-06 20:29:08,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:07" (2/3) ... [2023-11-06 20:29:08,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fd3070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:08, skipping insertion in model container [2023-11-06 20:29:08,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:08" (3/3) ... [2023-11-06 20:29:08,192 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2023-11-06 20:29:08,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:29:08,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 20:29:08,214 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:29:08,279 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 20:29:08,312 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:29:08,326 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 154 flow [2023-11-06 20:29:08,330 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 154 flow [2023-11-06 20:29:08,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 154 flow [2023-11-06 20:29:08,379 INFO L124 PetriNetUnfolderBase]: 2/74 cut-off events. [2023-11-06 20:29:08,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 20:29:08,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 2/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-11-06 20:29:08,385 INFO L119 LiptonReduction]: Number of co-enabled transitions 704 [2023-11-06 20:29:11,758 INFO L134 LiptonReduction]: Checked pairs total: 1757 [2023-11-06 20:29:11,758 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-11-06 20:29:11,772 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 20 transitions, 44 flow [2023-11-06 20:29:11,796 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 60 states, 56 states have (on average 1.9285714285714286) internal successors, (108), 59 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:29:11,825 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31f7ec74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:29:11,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-06 20:29:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 56 states have (on average 1.9285714285714286) internal successors, (108), 59 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-06 20:29:11,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:11,833 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-06 20:29:11,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-06 20:29:11,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash 272, now seen corresponding path program 1 times [2023-11-06 20:29:11,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:11,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299117493] [2023-11-06 20:29:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:11,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:11,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299117493] [2023-11-06 20:29:11,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299117493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:11,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:11,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 20:29:11,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910213862] [2023-11-06 20:29:11,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:11,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 20:29:11,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:12,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 20:29:12,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:29:12,024 INFO L87 Difference]: Start difference. First operand has 60 states, 56 states have (on average 1.9285714285714286) internal successors, (108), 59 states have internal predecessors, (108), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,069 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2023-11-06 20:29:12,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 20:29:12,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2023-11-06 20:29:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,080 INFO L225 Difference]: With dead ends: 58 [2023-11-06 20:29:12,080 INFO L226 Difference]: Without dead ends: 58 [2023-11-06 20:29:12,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:29:12,086 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 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 [2023-11-06 20:29:12,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:29:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-06 20:29:12,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-06 20:29:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.7678571428571428) internal successors, (99), 57 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 99 transitions. [2023-11-06 20:29:12,131 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 99 transitions. Word has length 1 [2023-11-06 20:29:12,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,133 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 99 transitions. [2023-11-06 20:29:12,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2023-11-06 20:29:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 20:29:12,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 20:29:12,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-06 20:29:12,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,142 INFO L85 PathProgramCache]: Analyzing trace with hash -609748570, now seen corresponding path program 1 times [2023-11-06 20:29:12,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327228152] [2023-11-06 20:29:12,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:12,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:12,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327228152] [2023-11-06 20:29:12,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327228152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:12,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:12,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 20:29:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56384327] [2023-11-06 20:29:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:12,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:12,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:12,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,385 INFO L87 Difference]: Start difference. First operand 58 states and 99 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,426 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2023-11-06 20:29:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:12,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-06 20:29:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,430 INFO L225 Difference]: With dead ends: 65 [2023-11-06 20:29:12,431 INFO L226 Difference]: Without dead ends: 65 [2023-11-06 20:29:12,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,433 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:12,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:29:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-06 20:29:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2023-11-06 20:29:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.7222222222222223) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 93 transitions. [2023-11-06 20:29:12,454 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 93 transitions. Word has length 6 [2023-11-06 20:29:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,455 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 93 transitions. [2023-11-06 20:29:12,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2023-11-06 20:29:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 20:29:12,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 20:29:12,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-06 20:29:12,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1852826370, now seen corresponding path program 1 times [2023-11-06 20:29:12,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258229475] [2023-11-06 20:29:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:12,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:12,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258229475] [2023-11-06 20:29:12,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258229475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:12,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:12,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 20:29:12,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715836453] [2023-11-06 20:29:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:12,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:12,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:12,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:12,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,648 INFO L87 Difference]: Start difference. First operand 56 states and 93 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,666 INFO L93 Difference]: Finished difference Result 49 states and 80 transitions. [2023-11-06 20:29:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:12,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-06 20:29:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,667 INFO L225 Difference]: With dead ends: 49 [2023-11-06 20:29:12,668 INFO L226 Difference]: Without dead ends: 27 [2023-11-06 20:29:12,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,669 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:12,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:29:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-06 20:29:12,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-06 20:29:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2023-11-06 20:29:12,678 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 40 transitions. Word has length 8 [2023-11-06 20:29:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,678 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 40 transitions. [2023-11-06 20:29:12,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2023-11-06 20:29:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 20:29:12,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 20:29:12,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-06 20:29:12,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1852861348, now seen corresponding path program 1 times [2023-11-06 20:29:12,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191951073] [2023-11-06 20:29:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:12,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191951073] [2023-11-06 20:29:12,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191951073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:12,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:12,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:29:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573513826] [2023-11-06 20:29:12,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:12,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:12,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:12,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,813 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:12,848 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2023-11-06 20:29:12,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:12,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-06 20:29:12,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:12,849 INFO L225 Difference]: With dead ends: 33 [2023-11-06 20:29:12,850 INFO L226 Difference]: Without dead ends: 32 [2023-11-06 20:29:12,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:12,851 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:12,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:29:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-06 20:29:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2023-11-06 20:29:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 28 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2023-11-06 20:29:12,863 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 8 [2023-11-06 20:29:12,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:12,863 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2023-11-06 20:29:12,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:12,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2023-11-06 20:29:12,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 20:29:12,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:12,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:12,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 20:29:12,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-06 20:29:12,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1855833628, now seen corresponding path program 2 times [2023-11-06 20:29:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-06 20:29:12,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884283222] [2023-11-06 20:29:12,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 20:29:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:13,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-06 20:29:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884283222] [2023-11-06 20:29:13,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884283222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:13,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:13,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 20:29:13,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791896144] [2023-11-06 20:29:13,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:13,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:29:13,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-06 20:29:13,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:29:13,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:13,066 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:13,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:13,105 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2023-11-06 20:29:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 20:29:13,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2023-11-06 20:29:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:13,106 INFO L225 Difference]: With dead ends: 20 [2023-11-06 20:29:13,106 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 20:29:13,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:29:13,108 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:13,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:29:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 20:29:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 20:29:13,111 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) [2023-11-06 20:29:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 20:29:13,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2023-11-06 20:29:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:13,112 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 20:29:13,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:13,112 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 20:29:13,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 20:29:13,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-11-06 20:29:13,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-06 20:29:13,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-11-06 20:29:13,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-06 20:29:13,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-06 20:29:13,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 20:29:13,119 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-06 20:29:13,122 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 20:29:13,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 20:29:13,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:29:13 BasicIcfg [2023-11-06 20:29:13,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 20:29:13,133 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 20:29:13,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 20:29:13,133 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 20:29:13,134 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:08" (3/4) ... [2023-11-06 20:29:13,137 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 20:29:13,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 20:29:13,148 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 20:29:13,154 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 20:29:13,154 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 20:29:13,155 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 20:29:13,210 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/witness.graphml.graphml [2023-11-06 20:29:13,211 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/witness.graphml.yaml [2023-11-06 20:29:13,211 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 20:29:13,212 INFO L158 Benchmark]: Toolchain (without parser) took 6138.61ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 116.4MB in the beginning and 141.5MB in the end (delta: -25.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,212 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:29:13,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.38ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 97.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.21ms. Allocated memory is still 163.6MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,213 INFO L158 Benchmark]: Boogie Preprocessor took 39.29ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,213 INFO L158 Benchmark]: RCFGBuilder took 433.07ms. Allocated memory is still 163.6MB. Free memory was 93.8MB in the beginning and 125.9MB in the end (delta: -32.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,214 INFO L158 Benchmark]: TraceAbstraction took 4948.72ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 124.8MB in the beginning and 145.7MB in the end (delta: -20.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,214 INFO L158 Benchmark]: Witness Printer took 78.19ms. Allocated memory is still 197.1MB. Free memory was 144.6MB in the beginning and 141.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 20:29:13,217 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.38ms. Allocated memory is still 163.6MB. Free memory was 116.4MB in the beginning and 97.5MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.21ms. Allocated memory is still 163.6MB. Free memory was 97.5MB in the beginning and 95.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.29ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 93.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.07ms. Allocated memory is still 163.6MB. Free memory was 93.8MB in the beginning and 125.9MB in the end (delta: -32.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4948.72ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 124.8MB in the beginning and 145.7MB in the end (delta: -20.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 78.19ms. Allocated memory is still 197.1MB. Free memory was 144.6MB in the beginning and 141.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 77 PlacesBefore, 23 PlacesAfterwards, 75 TransitionsBefore, 20 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 1757 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 948, independent: 807, independent conditional: 0, independent unconditional: 807, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 492, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 492, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 948, independent: 346, independent conditional: 0, independent unconditional: 346, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 492, unknown conditional: 0, unknown unconditional: 492] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 13 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 20:29:13,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_943addb7-e1df-4c5a-a9fc-0e22a2d1ec78/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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