./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/test-easy6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:38:38,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:38:38,388 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-02 12:38:38,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:38:38,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:38:38,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:38:38,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:38:38,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:38:38,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:38:38,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:38:38,438 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:38:38,438 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:38:38,439 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:38:38,442 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:38:38,443 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:38:38,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:38:38,443 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:38:38,444 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:38:38,444 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:38:38,444 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:38:38,445 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:38:38,445 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:38:38,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:38:38,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:38:38,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:38:38,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:38:38,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:38:38,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:38:38,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:38:38,448 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:38:38,448 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:38:38,448 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:38:38,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:38:38,449 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:38:38,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:38:38,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:38:38,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:38:38,451 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:38:38,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:38:38,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:38:38,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:38:38,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:38,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:38:38,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:38:38,454 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:38:38,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:38:38,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:38:38,455 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:38:38,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:38:38,455 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_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69f73d75edf25d106d657bdc186907312ee3ef2bf4e5da547c0ac3641991b71d [2024-11-02 12:38:38,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:38:38,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:38:38,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:38:38,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:38:38,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:38:38,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/weaver/test-easy6.wvr.c Unable to find full path for "g++" [2024-11-02 12:38:41,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:38:41,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:38:41,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/sv-benchmarks/c/weaver/test-easy6.wvr.c [2024-11-02 12:38:41,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/data/a9f7ea28e/8ebc1ceb289341b4aebf397908fb2e64/FLAG3cee4f4b8 [2024-11-02 12:38:41,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/data/a9f7ea28e/8ebc1ceb289341b4aebf397908fb2e64 [2024-11-02 12:38:41,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:38:41,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:38:41,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:41,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:38:41,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:38:41,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2333ec3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41, skipping insertion in model container [2024-11-02 12:38:41,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:38:41,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:41,754 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:38:41,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:38:41,829 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:38:41,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41 WrapperNode [2024-11-02 12:38:41,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:38:41,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:41,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:38:41,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:38:41,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,899 INFO L138 Inliner]: procedures = 20, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-11-02 12:38:41,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:38:41,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:38:41,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:38:41,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:38:41,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,933 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:38:41,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:38:41,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:38:41,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:38:41,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (1/1) ... [2024-11-02 12:38:41,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:38:41,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:38:41,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:38:42,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:38:42,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:38:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-02 12:38:42,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-02 12:38:42,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-02 12:38:42,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-02 12:38:42,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:38:42,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:38:42,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:38:42,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:38:42,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:38:42,066 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:38:42,214 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:38:42,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:38:42,589 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:38:42,589 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:38:42,741 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:38:42,742 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:38:42,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:42 BoogieIcfgContainer [2024-11-02 12:38:42,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:38:42,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:38:42,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:38:42,751 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:38:42,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:38:41" (1/3) ... [2024-11-02 12:38:42,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b48f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:42, skipping insertion in model container [2024-11-02 12:38:42,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:38:41" (2/3) ... [2024-11-02 12:38:42,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b48f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:38:42, skipping insertion in model container [2024-11-02 12:38:42,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:42" (3/3) ... [2024-11-02 12:38:42,756 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-11-02 12:38:42,777 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:38:42,778 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:38:42,778 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:38:42,855 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-02 12:38:42,893 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 36 transitions, 86 flow [2024-11-02 12:38:42,977 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 331 states, 329 states have (on average 2.2735562310030395) internal successors, (748), 330 states have internal predecessors, (748), 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) [2024-11-02 12:38:43,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:38:43,023 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=FINITE_AUTOMATA, 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;@477de644, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:38:43,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-02 12:38:43,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 329 states have (on average 2.2735562310030395) internal successors, (748), 330 states have internal predecessors, (748), 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) [2024-11-02 12:38:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:43,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:43,049 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:43,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:43,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1369432312, now seen corresponding path program 1 times [2024-11-02 12:38:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:43,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635812154] [2024-11-02 12:38:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:43,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:43,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:43,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:43,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635812154] [2024-11-02 12:38:43,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635812154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:43,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:43,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:38:43,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984795099] [2024-11-02 12:38:43,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:43,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:38:43,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:38:43,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:38:43,600 INFO L87 Difference]: Start difference. First operand has 331 states, 329 states have (on average 2.2735562310030395) internal successors, (748), 330 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-02 12:38:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:43,717 INFO L93 Difference]: Finished difference Result 460 states and 1031 transitions. [2024-11-02 12:38:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:38:43,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:43,733 INFO L225 Difference]: With dead ends: 460 [2024-11-02 12:38:43,733 INFO L226 Difference]: Without dead ends: 329 [2024-11-02 12:38:43,737 INFO L431 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 [2024-11-02 12:38:43,740 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:43,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 38 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:43,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-02 12:38:43,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-02 12:38:43,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 328 states have (on average 2.2560975609756095) internal successors, (740), 328 states have internal predecessors, (740), 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) [2024-11-02 12:38:43,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 740 transitions. [2024-11-02 12:38:43,818 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 740 transitions. Word has length 31 [2024-11-02 12:38:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:43,819 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 740 transitions. [2024-11-02 12:38:43,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-02 12:38:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 740 transitions. [2024-11-02 12:38:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:43,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:43,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:43,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:38:43,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:43,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2145439304, now seen corresponding path program 2 times [2024-11-02 12:38:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:43,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268960636] [2024-11-02 12:38:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:44,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:44,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268960636] [2024-11-02 12:38:44,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268960636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:44,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:44,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087476827] [2024-11-02 12:38:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:44,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:44,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:44,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:44,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:44,139 INFO L87 Difference]: Start difference. First operand 329 states and 740 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:44,411 INFO L93 Difference]: Finished difference Result 414 states and 891 transitions. [2024-11-02 12:38:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:38:44,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:44,415 INFO L225 Difference]: With dead ends: 414 [2024-11-02 12:38:44,417 INFO L226 Difference]: Without dead ends: 321 [2024-11-02 12:38:44,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:38:44,421 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 92 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:44,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 100 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-02 12:38:44,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 267. [2024-11-02 12:38:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 266 states have (on average 2.225563909774436) internal successors, (592), 266 states have internal predecessors, (592), 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) [2024-11-02 12:38:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 592 transitions. [2024-11-02 12:38:44,463 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 592 transitions. Word has length 31 [2024-11-02 12:38:44,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:44,464 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 592 transitions. [2024-11-02 12:38:44,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 592 transitions. [2024-11-02 12:38:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:44,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:44,470 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:44,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:38:44,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:44,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1840014858, now seen corresponding path program 3 times [2024-11-02 12:38:44,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083744981] [2024-11-02 12:38:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:44,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:44,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083744981] [2024-11-02 12:38:44,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083744981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:44,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:44,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:44,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987072683] [2024-11-02 12:38:44,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:44,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:44,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:44,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:44,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:44,727 INFO L87 Difference]: Start difference. First operand 267 states and 592 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:44,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:44,970 INFO L93 Difference]: Finished difference Result 487 states and 1055 transitions. [2024-11-02 12:38:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-02 12:38:44,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:44,973 INFO L225 Difference]: With dead ends: 487 [2024-11-02 12:38:44,973 INFO L226 Difference]: Without dead ends: 338 [2024-11-02 12:38:44,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:38:44,976 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 107 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:44,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 98 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:38:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-02 12:38:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 227. [2024-11-02 12:38:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 2.1991150442477876) internal successors, (497), 226 states have internal predecessors, (497), 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) [2024-11-02 12:38:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 497 transitions. [2024-11-02 12:38:44,999 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 497 transitions. Word has length 31 [2024-11-02 12:38:44,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:44,999 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 497 transitions. [2024-11-02 12:38:45,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:45,000 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 497 transitions. [2024-11-02 12:38:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:45,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:45,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:45,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:38:45,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:45,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:45,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1143866516, now seen corresponding path program 4 times [2024-11-02 12:38:45,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:45,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393538115] [2024-11-02 12:38:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:45,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:45,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:45,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:45,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393538115] [2024-11-02 12:38:45,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393538115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:45,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:45,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:45,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802493761] [2024-11-02 12:38:45,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:45,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:45,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:45,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:45,255 INFO L87 Difference]: Start difference. First operand 227 states and 497 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:45,483 INFO L93 Difference]: Finished difference Result 450 states and 955 transitions. [2024-11-02 12:38:45,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 12:38:45,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:45,486 INFO L225 Difference]: With dead ends: 450 [2024-11-02 12:38:45,486 INFO L226 Difference]: Without dead ends: 347 [2024-11-02 12:38:45,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:38:45,490 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 121 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:45,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 82 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-02 12:38:45,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 227. [2024-11-02 12:38:45,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 2.190265486725664) internal successors, (495), 226 states have internal predecessors, (495), 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) [2024-11-02 12:38:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 495 transitions. [2024-11-02 12:38:45,512 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 495 transitions. Word has length 31 [2024-11-02 12:38:45,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:45,513 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 495 transitions. [2024-11-02 12:38:45,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:45,513 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 495 transitions. [2024-11-02 12:38:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:45,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:45,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:45,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:38:45,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:45,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:45,517 INFO L85 PathProgramCache]: Analyzing trace with hash -267956492, now seen corresponding path program 5 times [2024-11-02 12:38:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:45,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827776215] [2024-11-02 12:38:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:45,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:45,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:45,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827776215] [2024-11-02 12:38:45,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827776215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:45,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:45,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:45,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115643199] [2024-11-02 12:38:45,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:45,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:45,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:45,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:45,711 INFO L87 Difference]: Start difference. First operand 227 states and 495 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:45,888 INFO L93 Difference]: Finished difference Result 367 states and 777 transitions. [2024-11-02 12:38:45,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:38:45,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:45,891 INFO L225 Difference]: With dead ends: 367 [2024-11-02 12:38:45,891 INFO L226 Difference]: Without dead ends: 248 [2024-11-02 12:38:45,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:38:45,893 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 75 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:45,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 80 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-02 12:38:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 207. [2024-11-02 12:38:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 2.174757281553398) internal successors, (448), 206 states have internal predecessors, (448), 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) [2024-11-02 12:38:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 448 transitions. [2024-11-02 12:38:45,904 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 448 transitions. Word has length 31 [2024-11-02 12:38:45,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:45,906 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 448 transitions. [2024-11-02 12:38:45,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:45,907 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 448 transitions. [2024-11-02 12:38:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:45,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:45,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:45,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:38:45,910 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:45,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1450777014, now seen corresponding path program 6 times [2024-11-02 12:38:45,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:45,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055091859] [2024-11-02 12:38:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:46,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:46,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:46,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055091859] [2024-11-02 12:38:46,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055091859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:46,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:46,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:46,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828225156] [2024-11-02 12:38:46,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:46,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:46,060 INFO L87 Difference]: Start difference. First operand 207 states and 448 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:46,205 INFO L93 Difference]: Finished difference Result 232 states and 490 transitions. [2024-11-02 12:38:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 12:38:46,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:46,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:46,208 INFO L225 Difference]: With dead ends: 232 [2024-11-02 12:38:46,208 INFO L226 Difference]: Without dead ends: 169 [2024-11-02 12:38:46,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:38:46,212 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 89 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:46,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 53 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-02 12:38:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-02 12:38:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 2.107142857142857) internal successors, (354), 168 states have internal predecessors, (354), 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) [2024-11-02 12:38:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 354 transitions. [2024-11-02 12:38:46,225 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 354 transitions. Word has length 31 [2024-11-02 12:38:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:46,226 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 354 transitions. [2024-11-02 12:38:46,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:46,227 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 354 transitions. [2024-11-02 12:38:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-02 12:38:46,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:38:46,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:38:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-02 12:38:46,231 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-02 12:38:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:38:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1099673784, now seen corresponding path program 7 times [2024-11-02 12:38:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:38:46,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920177414] [2024-11-02 12:38:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:38:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:38:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:38:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:38:46,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:38:46,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920177414] [2024-11-02 12:38:46,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920177414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:38:46,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:38:46,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-02 12:38:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22025813] [2024-11-02 12:38:46,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:38:46,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:38:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:38:46,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:38:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 12:38:46,411 INFO L87 Difference]: Start difference. First operand 169 states and 354 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:38:46,522 INFO L93 Difference]: Finished difference Result 169 states and 354 transitions. [2024-11-02 12:38:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:38:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2024-11-02 12:38:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:38:46,524 INFO L225 Difference]: With dead ends: 169 [2024-11-02 12:38:46,524 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:38:46,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:38:46,525 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 56 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:38:46,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 67 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:38:46,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:38:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:38:46,527 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) [2024-11-02 12:38:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:38:46,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2024-11-02 12:38:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:38:46,531 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:38:46,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-02 12:38:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:38:46,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:38:46,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-02 12:38:46,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-02 12:38:46,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-02 12:38:46,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-02 12:38:46,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-02 12:38:46,540 INFO L407 BasicCegarLoop]: Path program histogram: [7] [2024-11-02 12:38:46,544 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 12:38:46,544 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:38:46,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:38:46 BasicIcfg [2024-11-02 12:38:46,548 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:38:46,549 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:38:46,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:38:46,550 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:38:46,550 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:38:42" (3/4) ... [2024-11-02 12:38:46,553 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:38:46,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-02 12:38:46,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-02 12:38:46,564 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-02 12:38:46,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-02 12:38:46,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-02 12:38:46,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:38:46,663 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:38:46,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:38:46,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:38:46,665 INFO L158 Benchmark]: Toolchain (without parser) took 5257.85ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 125.7MB in the beginning and 122.1MB in the end (delta: 3.6MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-11-02 12:38:46,665 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:38:46,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.86ms. Allocated memory is still 161.5MB. Free memory was 125.3MB in the beginning and 112.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:38:46,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.87ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 110.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:38:46,666 INFO L158 Benchmark]: Boogie Preprocessor took 36.64ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:38:46,666 INFO L158 Benchmark]: RCFGBuilder took 803.13ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 87.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:38:46,667 INFO L158 Benchmark]: TraceAbstraction took 3801.51ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 86.6MB in the beginning and 127.4MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:38:46,667 INFO L158 Benchmark]: Witness Printer took 114.63ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 122.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-02 12:38:46,669 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.86ms. Allocated memory is still 161.5MB. Free memory was 125.3MB in the beginning and 112.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.87ms. Allocated memory is still 161.5MB. Free memory was 112.3MB in the beginning and 110.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.64ms. Allocated memory is still 161.5MB. Free memory was 110.7MB in the beginning and 109.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 803.13ms. Allocated memory is still 161.5MB. Free memory was 109.3MB in the beginning and 87.2MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3801.51ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 86.6MB in the beginning and 127.4MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 114.63ms. Allocated memory is still 195.0MB. Free memory was 127.4MB in the beginning and 122.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 106]: 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 5 procedures, 63 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 545 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 545 mSDsluCounter, 518 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 365 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 723 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 153 mSDtfsCounter, 723 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 326 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 12:38:46,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c60a5a3-77e2-41ce-bfcc-4449c5a769dd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE