./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:45:01,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:45:01,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-12-02 19:45:01,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:45:01,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:45:01,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:45:01,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:45:01,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:45:01,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:45:01,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:45:01,707 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:45:01,708 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:45:01,708 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:45:01,709 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:45:01,709 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:45:01,710 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:45:01,710 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:45:01,711 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:45:01,711 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:45:01,712 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:45:01,712 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:45:01,713 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:45:01,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 19:45:01,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 19:45:01,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:45:01,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:45:01,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:45:01,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:45:01,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:45:01,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:45:01,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:45:01,718 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 19:45:01,718 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 19:45:01,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:45:01,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:45:01,719 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 19:45:01,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 19:45:01,719 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:45:01,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:45:01,720 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:45:01,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:45:01,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:45:01,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:45:01,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:45:01,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:45:01,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:45:01,721 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:45:01,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:45:01,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:45:01,722 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:45:01,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:45:01,722 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_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0eca46c14885d62179341dcc13b398752af03e020a80dcf533f4c9afc7372707 [2023-12-02 19:45:01,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:45:01,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:45:01,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:45:01,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:45:01,988 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:45:01,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2023-12-02 19:45:04,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:45:05,042 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:45:05,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/sv-benchmarks/c/heap-manipulation/dll_of_dll-2.i [2023-12-02 19:45:05,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/data/e2a8b8869/7245f9b9d19740bc930fd62d3145a05e/FLAG65be435aa [2023-12-02 19:45:05,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/data/e2a8b8869/7245f9b9d19740bc930fd62d3145a05e [2023-12-02 19:45:05,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:45:05,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:45:05,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:45:05,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:45:05,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:45:05,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e315392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05, skipping insertion in model container [2023-12-02 19:45:05,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:45:05,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:45:05,438 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:45:05,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:45:05,516 WARN L675 CHandler]: The function insert_fnc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:45:05,524 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:45:05,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05 WrapperNode [2023-12-02 19:45:05,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:45:05,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:45:05,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:45:05,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:45:05,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,603 INFO L138 Inliner]: procedures = 140, calls = 95, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 236 [2023-12-02 19:45:05,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:45:05,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:45:05,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:45:05,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:45:05,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:45:05,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:45:05,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:45:05,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:45:05,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (1/1) ... [2023-12-02 19:45:05,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:45:05,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:45:05,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:45:05,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:45:05,720 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-12-02 19:45:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-12-02 19:45:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2023-12-02 19:45:05,721 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2023-12-02 19:45:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:45:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:45:05,721 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2023-12-02 19:45:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2023-12-02 19:45:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:45:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:45:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:45:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:45:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:45:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:45:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:45:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2023-12-02 19:45:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2023-12-02 19:45:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2023-12-02 19:45:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2023-12-02 19:45:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:45:05,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:45:05,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:45:05,859 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:45:05,861 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:45:06,193 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:45:06,298 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:45:06,298 INFO L309 CfgBuilder]: Removed 38 assume(true) statements. [2023-12-02 19:45:06,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:06 BoogieIcfgContainer [2023-12-02 19:45:06,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:45:06,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:45:06,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:45:06,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:45:06,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:45:05" (1/3) ... [2023-12-02 19:45:06,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6e72c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:06, skipping insertion in model container [2023-12-02 19:45:06,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:45:05" (2/3) ... [2023-12-02 19:45:06,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6e72c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:45:06, skipping insertion in model container [2023-12-02 19:45:06,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:45:06" (3/3) ... [2023-12-02 19:45:06,309 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2023-12-02 19:45:06,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:45:06,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 19:45:06,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:45:06,380 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;@2849ccf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:45:06,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 19:45:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 73 states have (on average 1.7808219178082192) internal successors, (130), 94 states have internal predecessors, (130), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 19:45:06,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 19:45:06,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:45:06,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:45:06,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 19:45:06,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:45:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2068514703, now seen corresponding path program 1 times [2023-12-02 19:45:06,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:45:06,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595902623] [2023-12-02 19:45:06,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:06,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:45:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 19:45:06,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:45:06,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595902623] [2023-12-02 19:45:06,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595902623] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:45:06,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:45:06,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:45:06,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586032131] [2023-12-02 19:45:06,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:45:06,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:45:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:45:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:45:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:45:06,703 INFO L87 Difference]: Start difference. First operand has 106 states, 73 states have (on average 1.7808219178082192) internal successors, (130), 94 states have internal predecessors, (130), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 19:45:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:45:06,783 INFO L93 Difference]: Finished difference Result 104 states and 132 transitions. [2023-12-02 19:45:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:45:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-12-02 19:45:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:45:06,795 INFO L225 Difference]: With dead ends: 104 [2023-12-02 19:45:06,795 INFO L226 Difference]: Without dead ends: 103 [2023-12-02 19:45:06,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:45:06,800 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:45:06,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:45:06,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-02 19:45:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-02 19:45:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 91 states have internal predecessors, (97), 24 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 19:45:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 131 transitions. [2023-12-02 19:45:06,844 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 131 transitions. Word has length 24 [2023-12-02 19:45:06,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:45:06,845 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 131 transitions. [2023-12-02 19:45:06,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 19:45:06,846 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 131 transitions. [2023-12-02 19:45:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 19:45:06,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:45:06,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:45:06,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:45:06,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 19:45:06,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:45:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -939346717, now seen corresponding path program 1 times [2023-12-02 19:45:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:45:06,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106328109] [2023-12-02 19:45:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:45:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 19:45:07,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:45:07,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106328109] [2023-12-02 19:45:07,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106328109] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:45:07,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:45:07,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-02 19:45:07,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361565503] [2023-12-02 19:45:07,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:45:07,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 19:45:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:45:07,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 19:45:07,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-02 19:45:07,277 INFO L87 Difference]: Start difference. First operand 103 states and 131 transitions. Second operand has 10 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 19:45:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:45:07,807 INFO L93 Difference]: Finished difference Result 170 states and 221 transitions. [2023-12-02 19:45:07,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 19:45:07,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-12-02 19:45:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:45:07,811 INFO L225 Difference]: With dead ends: 170 [2023-12-02 19:45:07,811 INFO L226 Difference]: Without dead ends: 170 [2023-12-02 19:45:07,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-02 19:45:07,813 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 71 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:45:07,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 906 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 19:45:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-12-02 19:45:07,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 134. [2023-12-02 19:45:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 117 states have internal predecessors, (131), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (16), 12 states have call predecessors, (16), 11 states have call successors, (16) [2023-12-02 19:45:07,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2023-12-02 19:45:07,833 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 25 [2023-12-02 19:45:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:45:07,833 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2023-12-02 19:45:07,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 19:45:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2023-12-02 19:45:07,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 19:45:07,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:45:07,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:45:07,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:45:07,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 19:45:07,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:45:07,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1598266435, now seen corresponding path program 1 times [2023-12-02 19:45:07,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:45:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490042046] [2023-12-02 19:45:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:07,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:45:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:45:08,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:45:08,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490042046] [2023-12-02 19:45:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490042046] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:45:08,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527743891] [2023-12-02 19:45:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:45:08,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:45:08,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:45:08,089 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:45:08,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:45:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:45:08,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 19:45:08,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:45:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:45:08,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:45:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 19:45:08,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527743891] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:45:08,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1417476508] [2023-12-02 19:45:08,520 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2023-12-02 19:45:08,520 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:45:08,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:45:08,530 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:45:08,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:45:10,233 INFO L197 IcfgInterpreter]: Interpreting procedure dll_create_generic with input of size 44 for LOIs [2023-12-02 19:45:10,414 INFO L197 IcfgInterpreter]: Interpreting procedure inspect_base with input of size 189 for LOIs [2023-12-02 19:45:12,000 INFO L197 IcfgInterpreter]: Interpreting procedure ##fun~$Pointer$~TO~VOID with input of size 70 for LOIs [2023-12-02 19:45:12,013 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 202 for LOIs [2023-12-02 19:45:13,161 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:45:31,693 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:45:51,175 WARN L293 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 193 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:46:17,188 WARN L293 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 206 DAG size of output: 201 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:46:28,932 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '805#(and (<= 1 |#StackHeapBarrier|) (exists ((v_inspect_base_~dll.offset_BEFORE_CALL_1 Int) (v_inspect_base_~dll.base_BEFORE_CALL_1 Int)) (and (not (= v_inspect_base_~dll.base_BEFORE_CALL_1 0)) (or (and (exists ((|v_dll_create_generic_~#dll~0.base_18| Int) (v_dll_create_generic_~insert_fnc.offset_BEFORE_RETURN_1 Int) (|v_#valid_81| (Array Int Int)) (v_dll_create_generic_~insert_fnc.base_BEFORE_RETURN_1 Int)) (and (or (and (exists ((|v_#valid_80| (Array Int Int))) (and (= (select |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0) (= (store |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |v_#valid_81|))) (exists ((|v_#memory_int_108| (Array Int (Array Int Int))) (|v_#memory_int_109| (Array Int (Array Int Int))) (|v_#memory_int_182| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_109| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_109| (Array Int (Array Int Int))) (|v_#memory_int_110| (Array Int (Array Int Int))) (|v_#memory_int_111| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_145| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |#memory_int| (store |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_int| |v_dll_create_generic_~#dll~0.base_18|) 0)))) (= |v_#memory_int_108| (store |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_108| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0)))) (= (store |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_109|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18|) 0 0))) (= (store |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0))) |#memory_$Pointer$.base|) (= |v_#memory_int_108| |v_#memory_int_111|) (= (store |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_110|) (= |v_#memory_$Pointer$.base_109| (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))) (= (select (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |v_#memory_$Pointer$.offset_109| (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))))) (exists ((|v_#length_63| (Array Int Int))) (= |#length| (store |v_#length_63| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 8))) (not (= v_dll_create_generic_~insert_fnc.base_BEFORE_RETURN_1 |#funAddr~dll_insert_master.base|)) (<= (+ (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |#StackHeapBarrier|)) (and (not (= |#funAddr~dll_insert_master.offset| v_dll_create_generic_~insert_fnc.offset_BEFORE_RETURN_1)) (exists ((|v_#valid_80| (Array Int Int))) (and (= (select |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0) (= (store |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |v_#valid_81|))) (exists ((|v_#memory_int_108| (Array Int (Array Int Int))) (|v_#memory_int_109| (Array Int (Array Int Int))) (|v_#memory_int_182| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_109| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_109| (Array Int (Array Int Int))) (|v_#memory_int_110| (Array Int (Array Int Int))) (|v_#memory_int_111| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_145| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |#memory_int| (store |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_int| |v_dll_create_generic_~#dll~0.base_18|) 0)))) (= |v_#memory_int_108| (store |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_108| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0)))) (= (store |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_109|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18|) 0 0))) (= (store |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0))) |#memory_$Pointer$.base|) (= |v_#memory_int_108| |v_#memory_int_111|) (= (store |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_110|) (= |v_#memory_$Pointer$.base_109| (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))) (= (select (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |v_#memory_$Pointer$.offset_109| (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))))) (exists ((|v_#length_63| (Array Int Int))) (= |#length| (store |v_#length_63| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 8))) (<= (+ (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |#StackHeapBarrier|))) (= (select (select |#memory_$Pointer$.offset| |v_dll_create_generic_~#dll~0.base_18|) 0) v_inspect_base_~dll.offset_BEFORE_CALL_1) (= (store |v_#valid_81| |v_dll_create_generic_~#dll~0.base_18| 0) |#valid|) (= v_inspect_base_~dll.base_BEFORE_CALL_1 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)))) (exists ((|v_#length_BEFORE_CALL_10| (Array Int Int))) (and (= 2 (select |v_#length_BEFORE_CALL_10| 1)) (= (select |v_#length_BEFORE_CALL_10| 2) 15))) (exists ((|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (Array Int Int))) (and (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 1) 1) (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 2) 1) (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 0) 0))) (exists ((|v_#memory_int_BEFORE_CALL_10| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_int_BEFORE_CALL_10| 1) 1) 0) (= (select (select |v_#memory_int_BEFORE_CALL_10| 1) 0) 48)))) (and (exists ((|v_dll_create_generic_~#dll~0.base_18| Int) (v_dll_create_generic_~insert_fnc.offset_BEFORE_RETURN_2 Int) (|v_#valid_81| (Array Int Int)) (v_dll_create_generic_~insert_fnc.base_BEFORE_RETURN_2 Int)) (and (= (select (select |#memory_$Pointer$.offset| |v_dll_create_generic_~#dll~0.base_18|) 0) v_inspect_base_~dll.offset_BEFORE_CALL_1) (= (store |v_#valid_81| |v_dll_create_generic_~#dll~0.base_18| 0) |#valid|) (= v_inspect_base_~dll.base_BEFORE_CALL_1 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) (or (and (exists ((|v_#valid_80| (Array Int Int))) (and (= (select |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0) (= (store |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |v_#valid_81|))) (not (= |#funAddr~dll_insert_master.offset| v_dll_create_generic_~insert_fnc.offset_BEFORE_RETURN_2)) (exists ((|v_#memory_int_108| (Array Int (Array Int Int))) (|v_#memory_int_109| (Array Int (Array Int Int))) (|v_#memory_int_182| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_109| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_109| (Array Int (Array Int Int))) (|v_#memory_int_110| (Array Int (Array Int Int))) (|v_#memory_int_111| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_145| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |#memory_int| (store |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_int| |v_dll_create_generic_~#dll~0.base_18|) 0)))) (= |v_#memory_int_108| (store |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_108| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0)))) (= (store |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_109|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18|) 0 0))) (= (store |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0))) |#memory_$Pointer$.base|) (= |v_#memory_int_108| |v_#memory_int_111|) (= (store |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_110|) (= |v_#memory_$Pointer$.base_109| (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))) (= (select (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |v_#memory_$Pointer$.offset_109| (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))))) (exists ((|v_#length_63| (Array Int Int))) (= |#length| (store |v_#length_63| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 8))) (<= (+ (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |#StackHeapBarrier|)) (and (exists ((|v_#valid_80| (Array Int Int))) (and (= (select |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0) (= (store |v_#valid_80| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |v_#valid_81|))) (exists ((|v_#memory_int_108| (Array Int (Array Int Int))) (|v_#memory_int_109| (Array Int (Array Int Int))) (|v_#memory_int_182| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_109| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_109| (Array Int (Array Int Int))) (|v_#memory_int_110| (Array Int (Array Int Int))) (|v_#memory_int_111| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_145| (Array Int (Array Int Int)))) (and (= (select (select (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |#memory_int| (store |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_int_111| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_int| |v_dll_create_generic_~#dll~0.base_18|) 0)))) (= |v_#memory_int_108| (store |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_108| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0)))) (= (store |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_109| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_109|) (= |#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.offset_109| |v_dll_create_generic_~#dll~0.base_18|) 0 0))) (= (store |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18| (store (select |v_#memory_$Pointer$.base_109| |v_dll_create_generic_~#dll~0.base_18|) 0 (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0))) |#memory_$Pointer$.base|) (= |v_#memory_int_108| |v_#memory_int_111|) (= (store |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_int_182| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 (select (select |v_#memory_int_110| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0))) |v_#memory_int_110|) (= |v_#memory_$Pointer$.base_109| (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))) (= (select (select (store |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.base_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0)) |v_dll_create_generic_~#dll~0.base_18|) 0) 0) (= |v_#memory_$Pointer$.offset_109| (store |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) (store (select |v_#memory_$Pointer$.offset_145| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0)) 0 0))))) (exists ((|v_#length_63| (Array Int Int))) (= |#length| (store |v_#length_63| (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 8))) (<= (+ (select (select |#memory_$Pointer$.base| |v_dll_create_generic_~#dll~0.base_18|) 0) 1) |#StackHeapBarrier|) (not (= v_dll_create_generic_~insert_fnc.base_BEFORE_RETURN_2 |#funAddr~dll_insert_master.base|)))))) (exists ((|v_#length_BEFORE_CALL_12| (Array Int Int))) (and (= (select |v_#length_BEFORE_CALL_12| 1) 2) (= 15 (select |v_#length_BEFORE_CALL_12| 2)))) (exists ((|v_#memory_int_BEFORE_CALL_12| (Array Int (Array Int Int)))) (and (= (select (select |v_#memory_int_BEFORE_CALL_12| 1) 0) 48) (= (select (select |v_#memory_int_BEFORE_CALL_12| 1) 1) 0))) (exists ((|v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| (Array Int Int))) (and (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 1) 1) (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 2) 1) (= (select |v_ULTIMATE.start_main_old_#valid#1_BEFORE_CALL_3| 0) 0))))) (= (select (select |#memory_$Pointer$.base| v_inspect_base_~dll.base_BEFORE_CALL_1) v_inspect_base_~dll.offset_BEFORE_CALL_1) 0))))' at error location [2023-12-02 19:46:28,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:46:28,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:46:28,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-12-02 19:46:28,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163629910] [2023-12-02 19:46:28,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:46:28,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:46:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:46:28,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=260, Unknown=3, NotChecked=0, Total=306 [2023-12-02 19:46:28,935 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 6 states have internal predecessors, (20), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:46:29,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:29,166 INFO L93 Difference]: Finished difference Result 115 states and 148 transitions. [2023-12-02 19:46:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 19:46:29,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 6 states have internal predecessors, (20), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 28 [2023-12-02 19:46:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:29,168 INFO L225 Difference]: With dead ends: 115 [2023-12-02 19:46:29,169 INFO L226 Difference]: Without dead ends: 115 [2023-12-02 19:46:29,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 75.9s TimeCoverageRelationStatistics Valid=48, Invalid=291, Unknown=3, NotChecked=0, Total=342 [2023-12-02 19:46:29,170 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 16 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:29,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 323 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 19:46:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-02 19:46:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-02 19:46:29,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 98 states have internal predecessors, (105), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 19:46:29,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 145 transitions. [2023-12-02 19:46:29,180 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 145 transitions. Word has length 28 [2023-12-02 19:46:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:29,180 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 145 transitions. [2023-12-02 19:46:29,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 6 states have internal predecessors, (20), 5 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 19:46:29,181 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 145 transitions. [2023-12-02 19:46:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:46:29,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:29,184 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:29,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:46:29,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:29,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 19:46:29,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1539369145, now seen corresponding path program 1 times [2023-12-02 19:46:29,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:29,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918039573] [2023-12-02 19:46:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:29,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-02 19:46:30,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918039573] [2023-12-02 19:46:30,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918039573] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:46:30,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531296278] [2023-12-02 19:46:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:30,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:30,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:46:30,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:46:30,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:46:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:30,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 19:46:30,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:46:30,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2023-12-02 19:46:30,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 25 [2023-12-02 19:46:30,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-02 19:46:30,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 19:46:30,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:30,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 19:46:30,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-12-02 19:46:30,714 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-02 19:46:30,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:46:31,129 INFO L349 Elim1Store]: treesize reduction 17, result has 64.6 percent of original size [2023-12-02 19:46:31,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 165 [2023-12-02 19:46:31,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:46:31,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 85 [2023-12-02 19:46:31,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2023-12-02 19:46:31,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-12-02 19:46:31,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 19:46:31,240 INFO L349 Elim1Store]: treesize reduction 17, result has 64.6 percent of original size [2023-12-02 19:46:31,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 182 treesize of output 165 [2023-12-02 19:46:31,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 60 [2023-12-02 19:46:31,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:46:31,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 83 [2023-12-02 19:46:31,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-12-02 19:46:31,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-12-02 19:46:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-02 19:46:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531296278] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:46:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2109447329] [2023-12-02 19:46:31,428 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-12-02 19:46:31,428 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:46:31,429 FATAL L? ?]: Ignoring exception! java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:96) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 19:46:31,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:46:31,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 12] total 14 [2023-12-02 19:46:31,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479255920] [2023-12-02 19:46:31,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:46:31,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 19:46:31,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 19:46:31,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-02 19:46:31,434 INFO L87 Difference]: Start difference. First operand 115 states and 145 transitions. Second operand has 14 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 19:46:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:32,292 INFO L93 Difference]: Finished difference Result 175 states and 219 transitions. [2023-12-02 19:46:32,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 19:46:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 4 states have call successors, (11) Word has length 71 [2023-12-02 19:46:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:32,295 INFO L225 Difference]: With dead ends: 175 [2023-12-02 19:46:32,296 INFO L226 Difference]: Without dead ends: 175 [2023-12-02 19:46:32,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-02 19:46:32,297 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 71 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:32,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1172 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 19:46:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-12-02 19:46:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 138. [2023-12-02 19:46:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 101 states have (on average 1.316831683168317) internal successors, (133), 119 states have internal predecessors, (133), 27 states have call successors, (27), 9 states have call predecessors, (27), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 19:46:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 173 transitions. [2023-12-02 19:46:32,310 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 173 transitions. Word has length 71 [2023-12-02 19:46:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:32,311 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 173 transitions. [2023-12-02 19:46:32,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 3.0) internal successors, (30), 12 states have internal predecessors, (30), 6 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 7 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 19:46:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 173 transitions. [2023-12-02 19:46:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 19:46:32,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:32,313 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:32,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:46:32,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:32,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-12-02 19:46:32,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:32,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1649791149, now seen corresponding path program 1 times [2023-12-02 19:46:32,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:32,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920803764] [2023-12-02 19:46:32,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:32,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 53 proven. 27 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 19:46:47,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:47,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920803764] [2023-12-02 19:46:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920803764] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:46:47,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737341698] [2023-12-02 19:46:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:47,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:47,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:46:47,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:46:47,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3a61ec-ae47-4b99-acce-5b840917274a/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:46:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:47,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 185 conjunts are in the unsatisfiable core [2023-12-02 19:46:47,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:46:47,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 19:46:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:47,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-12-02 19:46:47,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2023-12-02 19:46:47,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-12-02 19:46:48,103 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|))) (let ((.cse1 (select .cse0 |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset|))) (or (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (= .cse0 (store (select (store (store |c_#memory_$Pointer$.base| |c_##fun~$Pointer$~TO~VOID_#in~10#1.base| v_DerPreprocessor_1) .cse1 v_DerPreprocessor_2) |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) |c_##fun~$Pointer$~TO~VOID_#in~10#1.offset| .cse1))) (not (= .cse1 0))) (and (= .cse1 |c_##fun~$Pointer$~TO~VOID_#in~10#1.base|) (not (= |c_##fun~$Pointer$~TO~VOID_#in~10#1.base| 0)))))) is different from true [2023-12-02 19:46:48,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-02 19:46:48,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 19:46:48,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-02 19:46:48,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 19:46:51,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:51,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 426 treesize of output 414 [2023-12-02 19:46:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:52,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:52,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-02 19:46:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:52,276 INFO L349 Elim1Store]: treesize reduction 48, result has 39.2 percent of original size [2023-12-02 19:46:52,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 127 [2023-12-02 19:46:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 19:46:52,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 72 [2023-12-02 19:46:52,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:46:52,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2023-12-02 19:46:52,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-12-02 19:46:52,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-12-02 19:46:52,496 INFO L349 Elim1Store]: treesize reduction 119, result has 26.1 percent of original size [2023-12-02 19:46:52,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 207 treesize of output 285 [2023-12-02 19:46:52,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 171 [2023-12-02 19:46:52,646 INFO L349 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2023-12-02 19:46:52,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 28 [2023-12-02 19:46:52,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 19:46:52,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2023-12-02 19:46:52,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-12-02 19:46:59,576 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 19:46:59,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 899 treesize of output 1093 [2023-12-02 19:51:07,604 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 623 DAG size of output: 770 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 19:58:16,134 WARN L293 SmtUtils]: Spent 30.90s on a formula simplification. DAG size of input: 1422 DAG size of output: 1426 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)