./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:55:51,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:51,319 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-24 23:55:51,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:51,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:51,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:51,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:51,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:51,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:51,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:51,378 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:51,379 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:51,379 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:51,381 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:51,381 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:51,382 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:51,382 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:51,382 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:51,383 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:51,383 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:51,383 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:51,384 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:51,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:55:51,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:55:51,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:51,386 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:55:51,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:51,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:55:51,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:51,388 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:55:51,389 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:55:51,389 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:55:51,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:51,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:55:51,390 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:55:51,390 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:55:51,390 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:51,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:51,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:55:51,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:51,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:51,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:51,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:51,392 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:51,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:51,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:51,393 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:51,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:51,393 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_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2023-11-24 23:55:51,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:51,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:51,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:51,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:51,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:51,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:55:54,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:55,273 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:55,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:55:55,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/a505fdb5d/c0c79fc5a8514096af4fe69cca27b2a4/FLAG7b99984be [2023-11-24 23:55:55,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/a505fdb5d/c0c79fc5a8514096af4fe69cca27b2a4 [2023-11-24 23:55:55,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:55,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:55,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:55,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:55,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:55,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8926c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55, skipping insertion in model container [2023-11-24 23:55:55,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,401 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:55:55,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:55,806 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:55:55,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:55,927 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:55:55,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55 WrapperNode [2023-11-24 23:55:55,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:55,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:55,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:55:55,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:55:55,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,979 INFO L138 Inliner]: procedures = 163, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-24 23:55:55,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:55,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:55:55,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:55:55,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:55:55,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:55,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:55:56,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:55:56,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:55:56,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:55:56,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (1/1) ... [2023-11-24 23:55:56,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:56,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:56,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:55:56,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:55:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:55:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:55:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:55:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:55:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 23:55:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 23:55:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:55:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:55:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:55:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:55:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:55:56,134 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:55:56,316 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:55:56,319 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:56,492 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:56,677 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:56,678 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:55:56,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:56 BoogieIcfgContainer [2023-11-24 23:55:56,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:56,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:56,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:56,685 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:56,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:55" (1/3) ... [2023-11-24 23:55:56,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b66fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:56, skipping insertion in model container [2023-11-24 23:55:56,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:55" (2/3) ... [2023-11-24 23:55:56,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b66fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:56, skipping insertion in model container [2023-11-24 23:55:56,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:56" (3/3) ... [2023-11-24 23:55:56,694 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:55:56,715 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:56,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:55:56,715 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:55:56,751 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 23:55:56,782 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 23:55:56,827 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:56,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:56,864 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;@b026e0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:56,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 23:55:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:55:56,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:56,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:55:56,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:55:56,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:56,881 INFO L85 PathProgramCache]: Analyzing trace with hash 6862, now seen corresponding path program 1 times [2023-11-24 23:55:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119942453] [2023-11-24 23:55:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:56,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:57,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119942453] [2023-11-24 23:55:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119942453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:57,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:57,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:55:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305077859] [2023-11-24 23:55:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:57,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:57,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:57,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:57,379 INFO L87 Difference]: Start difference. First operand has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:57,498 INFO L93 Difference]: Finished difference Result 144 states and 260 transitions. [2023-11-24 23:55:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:57,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:55:57,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:57,518 INFO L225 Difference]: With dead ends: 144 [2023-11-24 23:55:57,518 INFO L226 Difference]: Without dead ends: 144 [2023-11-24 23:55:57,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:57,526 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:57,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 12 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:55:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-24 23:55:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-24 23:55:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.8439716312056738) internal successors, (260), 143 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 260 transitions. [2023-11-24 23:55:57,611 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 260 transitions. Word has length 2 [2023-11-24 23:55:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:57,611 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 260 transitions. [2023-11-24 23:55:57,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 260 transitions. [2023-11-24 23:55:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:55:57,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:57,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:55:57,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:55:57,613 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:55:57,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:57,614 INFO L85 PathProgramCache]: Analyzing trace with hash 6863, now seen corresponding path program 1 times [2023-11-24 23:55:57,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286245280] [2023-11-24 23:55:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:57,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:57,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286245280] [2023-11-24 23:55:57,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286245280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:57,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:57,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:55:57,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640739252] [2023-11-24 23:55:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:57,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:57,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:57,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:57,819 INFO L87 Difference]: Start difference. First operand 144 states and 260 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:57,861 INFO L93 Difference]: Finished difference Result 143 states and 259 transitions. [2023-11-24 23:55:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:55:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:57,863 INFO L225 Difference]: With dead ends: 143 [2023-11-24 23:55:57,864 INFO L226 Difference]: Without dead ends: 143 [2023-11-24 23:55:57,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:57,866 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:57,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-24 23:55:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2023-11-24 23:55:57,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 1.8368794326241136) internal successors, (259), 142 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 259 transitions. [2023-11-24 23:55:57,878 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 259 transitions. Word has length 2 [2023-11-24 23:55:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 259 transitions. [2023-11-24 23:55:57,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 259 transitions. [2023-11-24 23:55:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:55:57,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:57,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:57,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:55:57,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:55:57,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1472497021, now seen corresponding path program 1 times [2023-11-24 23:55:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519138922] [2023-11-24 23:55:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:58,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:58,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519138922] [2023-11-24 23:55:58,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519138922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:58,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:58,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:58,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784959715] [2023-11-24 23:55:58,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:58,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:58,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:58,042 INFO L87 Difference]: Start difference. First operand 143 states and 259 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:58,099 INFO L93 Difference]: Finished difference Result 133 states and 240 transitions. [2023-11-24 23:55:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:55:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-24 23:55:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:58,102 INFO L225 Difference]: With dead ends: 133 [2023-11-24 23:55:58,102 INFO L226 Difference]: Without dead ends: 113 [2023-11-24 23:55:58,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:58,104 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:58,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-24 23:55:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-11-24 23:55:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.8035714285714286) internal successors, (202), 112 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 202 transitions. [2023-11-24 23:55:58,114 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 202 transitions. Word has length 13 [2023-11-24 23:55:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:58,114 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 202 transitions. [2023-11-24 23:55:58,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:55:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 202 transitions. [2023-11-24 23:55:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:55:58,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:58,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:58,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:55:58,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:55:58,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:58,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1472497291, now seen corresponding path program 1 times [2023-11-24 23:55:58,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:58,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740556355] [2023-11-24 23:55:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:58,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:55:58,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:55:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:55:58,174 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:55:58,174 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:55:58,176 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-11-24 23:55:58,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-24 23:55:58,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-11-24 23:55:58,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-24 23:55:58,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 23:55:58,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:55:58,183 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 23:55:58,187 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:55:58,188 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:55:58,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-24 23:55:58,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:55:58 BasicIcfg [2023-11-24 23:55:58,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:55:58,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:55:58,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:55:58,216 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:55:58,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:56" (3/4) ... [2023-11-24 23:55:58,221 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:55:58,222 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:55:58,224 INFO L158 Benchmark]: Toolchain (without parser) took 2898.33ms. Allocated memory is still 148.9MB. Free memory was 118.3MB in the beginning and 57.5MB in the end (delta: 60.8MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,225 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:55:58,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.84ms. Allocated memory is still 148.9MB. Free memory was 117.9MB in the beginning and 98.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.29ms. Allocated memory is still 148.9MB. Free memory was 98.6MB in the beginning and 96.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,228 INFO L158 Benchmark]: Boogie Preprocessor took 60.73ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 95.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,228 INFO L158 Benchmark]: RCFGBuilder took 636.89ms. Allocated memory is still 148.9MB. Free memory was 95.0MB in the beginning and 70.2MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,229 INFO L158 Benchmark]: TraceAbstraction took 1534.42ms. Allocated memory is still 148.9MB. Free memory was 69.9MB in the beginning and 57.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-24 23:55:58,230 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 148.9MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:55:58,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.84ms. Allocated memory is still 148.9MB. Free memory was 117.9MB in the beginning and 98.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.29ms. Allocated memory is still 148.9MB. Free memory was 98.6MB in the beginning and 96.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.73ms. Allocated memory is still 148.9MB. Free memory was 96.6MB in the beginning and 95.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 636.89ms. Allocated memory is still 148.9MB. Free memory was 95.0MB in the beginning and 70.2MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1534.42ms. Allocated memory is still 148.9MB. Free memory was 69.9MB in the beginning and 57.5MB in the end (delta: 12.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 148.9MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:55:58,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:01,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:01,239 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-24 23:56:01,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:01,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:01,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:01,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:01,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:01,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:01,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:01,306 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:01,306 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:01,307 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:01,307 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:01,308 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:01,308 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:01,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:56:01,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:56:01,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:01,310 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:56:01,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:01,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:56:01,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:01,312 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:56:01,313 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:56:01,313 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:56:01,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:01,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:56:01,314 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:56:01,315 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:56:01,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:56:01,317 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:56:01,317 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:01,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:01,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:56:01,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:01,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:01,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:01,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:01,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:01,320 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:56:01,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:56:01,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:01,320 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:01,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:01,321 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2023-11-24 23:56:01,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:01,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:01,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:01,771 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:01,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:01,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:56:04,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:05,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:05,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:56:05,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/583de592f/1134d131c7774fb5aac01c12ec601bd7/FLAGd05f4f8c5 [2023-11-24 23:56:05,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/data/583de592f/1134d131c7774fb5aac01c12ec601bd7 [2023-11-24 23:56:05,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:05,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:05,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:05,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:05,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:05,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:05" (1/1) ... [2023-11-24 23:56:05,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4913b110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:05, skipping insertion in model container [2023-11-24 23:56:05,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:05" (1/1) ... [2023-11-24 23:56:05,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:05,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:06,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:06,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:06,202 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:06,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06 WrapperNode [2023-11-24 23:56:06,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:06,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:06,204 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:06,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:06,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,266 INFO L138 Inliner]: procedures = 167, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-24 23:56:06,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:06,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:06,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:06,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:06,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,328 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:06,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:06,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:06,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:06,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (1/1) ... [2023-11-24 23:56:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:06,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:06,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:06,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:56:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:56:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 23:56:06,430 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 23:56:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:56:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:56:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:56:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 23:56:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:56:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:06,435 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:56:06,625 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:06,627 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:06,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:07,177 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:07,178 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:56:07,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:07 BoogieIcfgContainer [2023-11-24 23:56:07,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:07,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:07,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:07,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:07,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:05" (1/3) ... [2023-11-24 23:56:07,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e7f1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:07, skipping insertion in model container [2023-11-24 23:56:07,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:06" (2/3) ... [2023-11-24 23:56:07,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e7f1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:07, skipping insertion in model container [2023-11-24 23:56:07,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:07" (3/3) ... [2023-11-24 23:56:07,192 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 23:56:07,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:07,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:56:07,248 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:56:07,300 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 23:56:07,336 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 23:56:07,389 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:07,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:07,431 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;@17e85aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:07,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 23:56:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:56:07,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:07,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:56:07,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:56:07,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash 6926, now seen corresponding path program 1 times [2023-11-24 23:56:07,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:07,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443278265] [2023-11-24 23:56:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:07,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:07,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:07,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:07,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:56:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:07,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:56:07,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:07,694 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 6 treesize of output 7 [2023-11-24 23:56:07,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:07,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:56:07,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:56:07,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443278265] [2023-11-24 23:56:07,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443278265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:07,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:07,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439373550] [2023-11-24 23:56:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:07,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:07,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:56:07,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:07,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:07,761 INFO L87 Difference]: Start difference. First operand has 155 states, 151 states have (on average 1.9867549668874172) internal successors, (300), 154 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:07,852 INFO L93 Difference]: Finished difference Result 144 states and 260 transitions. [2023-11-24 23:56:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:07,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:56:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:07,874 INFO L225 Difference]: With dead ends: 144 [2023-11-24 23:56:07,874 INFO L226 Difference]: Without dead ends: 144 [2023-11-24 23:56:07,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:07,879 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:07,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 12 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:07,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-24 23:56:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-24 23:56:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.8439716312056738) internal successors, (260), 143 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 260 transitions. [2023-11-24 23:56:07,935 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 260 transitions. Word has length 2 [2023-11-24 23:56:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:07,936 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 260 transitions. [2023-11-24 23:56:07,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 260 transitions. [2023-11-24 23:56:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:56:07,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:07,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:56:07,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:08,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:08,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:56:08,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 6927, now seen corresponding path program 1 times [2023-11-24 23:56:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:08,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950726033] [2023-11-24 23:56:08,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:08,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:08,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:08,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 23:56:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:08,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:56:08,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:08,280 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 6 treesize of output 5 [2023-11-24 23:56:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:08,294 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:56:08,295 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:56:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950726033] [2023-11-24 23:56:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950726033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:08,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:08,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:08,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013488692] [2023-11-24 23:56:08,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:08,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:56:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:08,300 INFO L87 Difference]: Start difference. First operand 144 states and 260 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:08,367 INFO L93 Difference]: Finished difference Result 143 states and 259 transitions. [2023-11-24 23:56:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-24 23:56:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:08,370 INFO L225 Difference]: With dead ends: 143 [2023-11-24 23:56:08,370 INFO L226 Difference]: Without dead ends: 143 [2023-11-24 23:56:08,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:08,372 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:08,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-11-24 23:56:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2023-11-24 23:56:08,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 141 states have (on average 1.8368794326241136) internal successors, (259), 142 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 259 transitions. [2023-11-24 23:56:08,389 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 259 transitions. Word has length 2 [2023-11-24 23:56:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:08,389 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 259 transitions. [2023-11-24 23:56:08,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 259 transitions. [2023-11-24 23:56:08,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:56:08,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:08,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:08,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:08,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:08,594 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:56:08,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1138187265, now seen corresponding path program 1 times [2023-11-24 23:56:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431154132] [2023-11-24 23:56:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:08,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:08,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:08,597 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:08,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 23:56:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:08,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:56:08,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:08,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:56:08,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:56:08,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431154132] [2023-11-24 23:56:08,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431154132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:08,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:08,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:56:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275717761] [2023-11-24 23:56:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:08,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:56:08,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:56:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:56:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:56:08,758 INFO L87 Difference]: Start difference. First operand 143 states and 259 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:08,882 INFO L93 Difference]: Finished difference Result 133 states and 238 transitions. [2023-11-24 23:56:08,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:56:08,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-24 23:56:08,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:08,887 INFO L225 Difference]: With dead ends: 133 [2023-11-24 23:56:08,887 INFO L226 Difference]: Without dead ends: 133 [2023-11-24 23:56:08,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:56:08,891 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:08,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-24 23:56:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2023-11-24 23:56:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 131 states have (on average 1.816793893129771) internal successors, (238), 132 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 238 transitions. [2023-11-24 23:56:08,927 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 238 transitions. Word has length 13 [2023-11-24 23:56:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:08,928 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 238 transitions. [2023-11-24 23:56:08,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:56:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 238 transitions. [2023-11-24 23:56:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:56:08,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:08,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:08,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-24 23:56:09,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:09,133 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 23:56:09,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:09,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1138186995, now seen corresponding path program 1 times [2023-11-24 23:56:09,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774217614] [2023-11-24 23:56:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:09,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:09,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:09,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 23:56:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:09,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:56:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:09,299 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:56:09,300 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:56:09,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-11-24 23:56:09,303 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-24 23:56:09,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-11-24 23:56:09,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-24 23:56:09,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 23:56:09,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:09,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:09,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 23:56:09,511 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:56:09,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:09,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-24 23:56:09,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:09 BasicIcfg [2023-11-24 23:56:09,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:09,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:09,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:09,538 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:09,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:07" (3/4) ... [2023-11-24 23:56:09,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:56:09,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:09,543 INFO L158 Benchmark]: Toolchain (without parser) took 4169.98ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 55.1MB in the beginning and 61.4MB in the end (delta: -6.2MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-24 23:56:09,544 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:09,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.45ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 52.9MB in the end (delta: 2.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:09,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.30ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:09,545 INFO L158 Benchmark]: Boogie Preprocessor took 65.03ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 49.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:09,546 INFO L158 Benchmark]: RCFGBuilder took 846.84ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 36.1MB in the end (delta: 13.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-11-24 23:56:09,546 INFO L158 Benchmark]: TraceAbstraction took 2355.05ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 35.3MB in the beginning and 61.4MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:09,547 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 96.5MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:09,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.45ms. Allocated memory is still 79.7MB. Free memory was 54.9MB in the beginning and 52.9MB in the end (delta: 2.0MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.30ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.03ms. Allocated memory is still 79.7MB. Free memory was 50.8MB in the beginning and 49.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 846.84ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 36.1MB in the end (delta: 13.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2355.05ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 35.3MB in the beginning and 61.4MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 96.5MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 31 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 2 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:56:09,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b4b85f3-a633-49c1-8fd5-e05859bed49a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample