./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_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_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:01:46,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:01:46,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-12-02 15:01:46,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:01:46,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:01:46,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:01:46,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:01:46,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:01:46,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:01:46,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:01:46,913 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:01:46,913 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:01:46,914 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:01:46,914 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:01:46,915 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:01:46,915 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:01:46,916 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:01:46,916 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:01:46,917 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:01:46,917 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:01:46,918 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:01:46,919 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:01:46,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 15:01:46,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 15:01:46,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:01:46,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:01:46,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:01:46,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:01:46,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:01:46,922 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 15:01:46,923 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 15:01:46,923 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 15:01:46,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:01:46,924 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:01:46,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:01:46,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:01:46,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:01:46,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:01:46,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:01:46,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:01:46,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:46,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:01:46,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:01:46,926 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:01:46,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:01:46,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:01:46,927 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:01:46,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:01:46,927 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_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2023-12-02 15:01:47,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:01:47,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:01:47,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:01:47,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:01:47,179 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:01:47,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:50,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:01:50,262 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:01:50,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:50,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/9e36b4291/b09b13a607fd4c56bdb50c5bac100e73/FLAGd0059f80f [2023-12-02 15:01:50,292 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/9e36b4291/b09b13a607fd4c56bdb50c5bac100e73 [2023-12-02 15:01:50,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:01:50,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:01:50,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:50,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:01:50,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:01:50,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1fd2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50, skipping insertion in model container [2023-12-02 15:01:50,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:01:50,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:50,627 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:01:50,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:50,694 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:01:50,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50 WrapperNode [2023-12-02 15:01:50,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:50,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:50,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:01:50,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:01:50,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,733 INFO L138 Inliner]: procedures = 164, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-12-02 15:01:50,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:50,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:01:50,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:01:50,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:01:50,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:01:50,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:01:50,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:01:50,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:01:50,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (1/1) ... [2023-12-02 15:01:50,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:50,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:01:50,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:01:50,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:01:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:01:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:01:50,832 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:01:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:01:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:01:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-02 15:01:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-02 15:01:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:01:50,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:01:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:01:50,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:01:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:01:50,835 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:01:50,957 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:01:50,959 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:01:51,117 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:01:51,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:01:51,226 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:01:51,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:51 BoogieIcfgContainer [2023-12-02 15:01:51,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:01:51,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:01:51,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:01:51,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:01:51,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:01:50" (1/3) ... [2023-12-02 15:01:51,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cde4dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:51, skipping insertion in model container [2023-12-02 15:01:51,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:50" (2/3) ... [2023-12-02 15:01:51,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cde4dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:51, skipping insertion in model container [2023-12-02 15:01:51,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:51" (3/3) ... [2023-12-02 15:01:51,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:51,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:01:51,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-02 15:01:51,258 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:01:51,295 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 15:01:51,322 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 31 transitions, 69 flow [2023-12-02 15:01:51,347 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:51,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:01:51,372 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;@4abdfeb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:01:51,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 15:01:51,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:51,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:01:51,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:51,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:01:51,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:51,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:51,390 INFO L85 PathProgramCache]: Analyzing trace with hash 6652, now seen corresponding path program 1 times [2023-12-02 15:01:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009695187] [2023-12-02 15:01:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:51,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:51,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:51,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:51,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009695187] [2023-12-02 15:01:51,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009695187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:51,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:51,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:01:51,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205612853] [2023-12-02 15:01:51,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:51,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:51,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:51,655 INFO L87 Difference]: Start difference. First operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:51,706 INFO L93 Difference]: Finished difference Result 95 states and 164 transitions. [2023-12-02 15:01:51,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:51,709 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 [2023-12-02 15:01:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:51,718 INFO L225 Difference]: With dead ends: 95 [2023-12-02 15:01:51,718 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 15:01:51,720 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 [2023-12-02 15:01:51,723 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:51,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:01:51,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 15:01:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-02 15:01:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 90 states have (on average 1.8222222222222222) internal successors, (164), 94 states have internal predecessors, (164), 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) [2023-12-02 15:01:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 164 transitions. [2023-12-02 15:01:51,758 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 164 transitions. Word has length 2 [2023-12-02 15:01:51,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:51,758 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 164 transitions. [2023-12-02 15:01:51,758 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) [2023-12-02 15:01:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 164 transitions. [2023-12-02 15:01:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:01:51,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:51,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:01:51,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:01:51,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:51,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash 6653, now seen corresponding path program 1 times [2023-12-02 15:01:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:51,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947397558] [2023-12-02 15:01:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:51,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:51,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:01:51,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947397558] [2023-12-02 15:01:51,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947397558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:51,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:51,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:01:51,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952074966] [2023-12-02 15:01:51,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:51,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:51,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:01:51,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:51,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:51,884 INFO L87 Difference]: Start difference. First operand 95 states and 164 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) [2023-12-02 15:01:51,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:51,918 INFO L93 Difference]: Finished difference Result 83 states and 142 transitions. [2023-12-02 15:01:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:51,919 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 [2023-12-02 15:01:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:51,920 INFO L225 Difference]: With dead ends: 83 [2023-12-02 15:01:51,921 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 15:01:51,921 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 [2023-12-02 15:01:51,923 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:51,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:01:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 15:01:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-12-02 15:01:51,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 82 states have internal predecessors, (142), 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) [2023-12-02 15:01:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 142 transitions. [2023-12-02 15:01:51,934 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 142 transitions. Word has length 2 [2023-12-02 15:01:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:51,934 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 142 transitions. [2023-12-02 15:01:51,934 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) [2023-12-02 15:01:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 142 transitions. [2023-12-02 15:01:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 15:01:51,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:51,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:01:51,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:01:51,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:51,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1639957550, now seen corresponding path program 1 times [2023-12-02 15:01:51,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:01:51,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82987772] [2023-12-02 15:01:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:51,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:01:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:01:51,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:01:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:01:52,005 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:01:52,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:01:52,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-12-02 15:01:52,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-12-02 15:01:52,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-12-02 15:01:52,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-12-02 15:01:52,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-12-02 15:01:52,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-12-02 15:01:52,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-12-02 15:01:52,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-12-02 15:01:52,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:01:52,014 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 15:01:52,020 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 15:01:52,020 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:01:52,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-12-02 15:01:52,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:01:52 BasicIcfg [2023-12-02 15:01:52,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:01:52,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:01:52,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:01:52,043 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:01:52,043 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:51" (3/4) ... [2023-12-02 15:01:52,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:01:52,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:01:52,047 INFO L158 Benchmark]: Toolchain (without parser) took 1750.44ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 77.2MB in the beginning and 91.5MB in the end (delta: -14.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 15:01:52,048 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:01:52,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 123.7MB. Free memory was 76.9MB in the beginning and 57.4MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 15:01:52,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.70ms. Allocated memory is still 123.7MB. Free memory was 57.4MB in the beginning and 55.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:01:52,049 INFO L158 Benchmark]: Boogie Preprocessor took 25.11ms. Allocated memory is still 123.7MB. Free memory was 55.9MB in the beginning and 54.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:01:52,050 INFO L158 Benchmark]: RCFGBuilder took 466.40ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 54.1MB in the beginning and 140.5MB in the end (delta: -86.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 15:01:52,050 INFO L158 Benchmark]: TraceAbstraction took 811.95ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 92.6MB in the end (delta: 47.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-12-02 15:01:52,051 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 178.3MB. Free memory is still 91.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:01:52,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 123.7MB. Free memory was 76.9MB in the beginning and 57.4MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.70ms. Allocated memory is still 123.7MB. Free memory was 57.4MB in the beginning and 55.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.11ms. Allocated memory is still 123.7MB. Free memory was 55.9MB in the beginning and 54.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.40ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 54.1MB in the beginning and 140.5MB in the end (delta: -86.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 811.95ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 92.6MB in the end (delta: 47.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 178.3MB. Free memory is still 91.5MB. 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~pre4 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) VAL [glob1=1, mutex1={3:0}] [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=1, mutex1={3:0}] - 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: -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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 43 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-12-02 15:01:52,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:01:53,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:01:54,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-12-02 15:01:54,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:01:54,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:01:54,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:01:54,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:01:54,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:01:54,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:01:54,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:01:54,071 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:01:54,071 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:01:54,072 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:01:54,072 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:01:54,073 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:01:54,073 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:01:54,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 15:01:54,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 15:01:54,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:01:54,076 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:01:54,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:01:54,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:01:54,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:01:54,078 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 15:01:54,078 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 15:01:54,079 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 15:01:54,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:01:54,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:01:54,080 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:01:54,080 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:01:54,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:01:54,081 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:01:54,082 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:01:54,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:01:54,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:01:54,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:01:54,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:01:54,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:54,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:01:54,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:01:54,084 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:01:54,084 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:01:54,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:01:54,084 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:01:54,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:01:54,085 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_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2023-12-02 15:01:54,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:01:54,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:01:54,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:01:54,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:01:54,383 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:01:54,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:57,182 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:01:57,437 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:01:57,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:57,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/37ea455d4/fe68fb9a3e7342b9b261dd71f941d701/FLAG1e6277480 [2023-12-02 15:01:57,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/data/37ea455d4/fe68fb9a3e7342b9b261dd71f941d701 [2023-12-02 15:01:57,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:01:57,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:01:57,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:57,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:01:57,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:01:57,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:57,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471e6989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57, skipping insertion in model container [2023-12-02 15:01:57,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:57,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:01:57,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:57,883 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:01:57,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:01:57,970 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:01:57,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57 WrapperNode [2023-12-02 15:01:57,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:01:57,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:57,972 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:01:57,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:01:57,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:57,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,020 INFO L138 Inliner]: procedures = 168, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-12-02 15:01:58,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:01:58,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:01:58,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:01:58,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:01:58,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:01:58,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:01:58,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:01:58,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:01:58,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (1/1) ... [2023-12-02 15:01:58,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:01:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:01:58,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:01:58,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:01:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 15:01:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:01:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:01:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:01:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-02 15:01:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-02 15:01:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:01:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 15:01:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:01:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 15:01:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:01:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:01:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:01:58,144 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:01:58,308 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:01:58,310 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:01:58,481 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:01:58,626 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:01:58,626 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:01:58,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:58 BoogieIcfgContainer [2023-12-02 15:01:58,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:01:58,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:01:58,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:01:58,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:01:58,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:01:57" (1/3) ... [2023-12-02 15:01:58,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39816871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:58, skipping insertion in model container [2023-12-02 15:01:58,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:57" (2/3) ... [2023-12-02 15:01:58,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39816871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:58, skipping insertion in model container [2023-12-02 15:01:58,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:58" (3/3) ... [2023-12-02 15:01:58,635 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-12-02 15:01:58,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:01:58,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-02 15:01:58,652 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:01:58,689 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 15:01:58,712 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 31 transitions, 69 flow [2023-12-02 15:01:58,733 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:58,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:01:58,756 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;@22d0b9a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:01:58,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 15:01:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:01:58,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:58,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:01:58,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:58,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash 6652, now seen corresponding path program 1 times [2023-12-02 15:01:58,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:01:58,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388586457] [2023-12-02 15:01:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:58,780 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 [2023-12-02 15:01:58,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:01:58,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:01:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:58,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:01:58,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:01:58,965 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 [2023-12-02 15:01:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:58,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:01:58,977 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:01:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388586457] [2023-12-02 15:01:58,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388586457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:58,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:58,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:01:58,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117170465] [2023-12-02 15:01:58,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:01:59,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:59,013 INFO L87 Difference]: Start difference. First operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2023-12-02 15:01:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:59,076 INFO L93 Difference]: Finished difference Result 95 states and 164 transitions. [2023-12-02 15:01:59,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:59,079 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 [2023-12-02 15:01:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:59,088 INFO L225 Difference]: With dead ends: 95 [2023-12-02 15:01:59,088 INFO L226 Difference]: Without dead ends: 95 [2023-12-02 15:01:59,090 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 [2023-12-02 15:01:59,093 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:59,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:01:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-02 15:01:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-02 15:01:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 90 states have (on average 1.8222222222222222) internal successors, (164), 94 states have internal predecessors, (164), 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) [2023-12-02 15:01:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 164 transitions. [2023-12-02 15:01:59,133 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 164 transitions. Word has length 2 [2023-12-02 15:01:59,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:59,133 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 164 transitions. [2023-12-02 15:01:59,133 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) [2023-12-02 15:01:59,133 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 164 transitions. [2023-12-02 15:01:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-12-02 15:01:59,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:59,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-12-02 15:01:59,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:59,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:59,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:59,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:59,343 INFO L85 PathProgramCache]: Analyzing trace with hash 6653, now seen corresponding path program 1 times [2023-12-02 15:01:59,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:01:59,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978231714] [2023-12-02 15:01:59,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:59,344 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 [2023-12-02 15:01:59,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:01:59,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:01:59,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:01:59,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:01:59,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:01:59,411 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 [2023-12-02 15:01:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:01:59,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:01:59,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:01:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978231714] [2023-12-02 15:01:59,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978231714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:01:59,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:01:59,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 15:01:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938570807] [2023-12-02 15:01:59,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:01:59,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:01:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:01:59,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:01:59,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:01:59,427 INFO L87 Difference]: Start difference. First operand 95 states and 164 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) [2023-12-02 15:01:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:01:59,470 INFO L93 Difference]: Finished difference Result 83 states and 142 transitions. [2023-12-02 15:01:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:01:59,470 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 [2023-12-02 15:01:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:01:59,472 INFO L225 Difference]: With dead ends: 83 [2023-12-02 15:01:59,472 INFO L226 Difference]: Without dead ends: 83 [2023-12-02 15:01:59,473 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 [2023-12-02 15:01:59,474 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:01:59,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:01:59,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-02 15:01:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-12-02 15:01:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 82 states have internal predecessors, (142), 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) [2023-12-02 15:01:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 142 transitions. [2023-12-02 15:01:59,493 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 142 transitions. Word has length 2 [2023-12-02 15:01:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:01:59,494 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 142 transitions. [2023-12-02 15:01:59,494 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) [2023-12-02 15:01:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 142 transitions. [2023-12-02 15:01:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 15:01:59,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:01:59,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:01:59,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 15:01:59,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:59,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2023-12-02 15:01:59,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:01:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1639957550, now seen corresponding path program 1 times [2023-12-02 15:01:59,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:01:59,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991320012] [2023-12-02 15:01:59,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:01:59,698 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 [2023-12-02 15:01:59,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:01:59,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:01:59,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:01:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:01:59,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:01:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:01:59,848 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 15:01:59,848 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:01:59,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2023-12-02 15:01:59,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2023-12-02 15:01:59,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2023-12-02 15:01:59,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2023-12-02 15:01:59,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2023-12-02 15:01:59,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2023-12-02 15:01:59,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-12-02 15:01:59,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2023-12-02 15:01:59,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:02:00,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:02:00,056 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 15:02:00,060 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 15:02:00,060 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:02:00,069 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre4 could not be translated [2023-12-02 15:02:00,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:02:00 BasicIcfg [2023-12-02 15:02:00,077 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:02:00,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:02:00,078 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:02:00,078 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:02:00,078 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:58" (3/4) ... [2023-12-02 15:02:00,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:02:00,081 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:02:00,082 INFO L158 Benchmark]: Toolchain (without parser) took 2607.44ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 36.3MB in the end (delta: 33.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,082 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:02:00,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.62ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 49.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.91ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 46.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,084 INFO L158 Benchmark]: Boogie Preprocessor took 31.12ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,084 INFO L158 Benchmark]: RCFGBuilder took 573.82ms. Allocated memory is still 94.4MB. Free memory was 45.2MB in the beginning and 45.9MB in the end (delta: -633.5kB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,085 INFO L158 Benchmark]: TraceAbstraction took 1447.60ms. Allocated memory is still 94.4MB. Free memory was 45.3MB in the beginning and 36.9MB in the end (delta: 8.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-12-02 15:02:00,085 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 94.4MB. Free memory was 36.9MB in the beginning and 36.3MB in the end (delta: 597.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:02:00,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 495.62ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 49.0MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.91ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 46.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.12ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 45.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.82ms. Allocated memory is still 94.4MB. Free memory was 45.2MB in the beginning and 45.9MB in the end (delta: -633.5kB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1447.60ms. Allocated memory is still 94.4MB. Free memory was 45.3MB in the beginning and 36.9MB in the end (delta: 8.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 94.4MB. Free memory was 36.9MB in the beginning and 36.3MB in the end (delta: 597.5kB). 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~pre4 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={6:0}, mutex1={3:0}] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) VAL [glob1=1, mutex1={3:0}] [L18] 1 __assert_fail ("0", "13-privatized_18-first-reads_unknown_2_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [glob1=1, mutex1={3:0}] - 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: -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: 696]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 698]: 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, 43 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-12-02 15:02:00,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526191d1-e474-44e3-9618-da8ecc07bd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample