./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:46:53,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:46:53,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:46:53,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:46:53,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:46:53,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:46:53,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:46:53,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:46:53,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:46:53,182 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:46:53,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:46:53,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:46:53,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:46:53,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:46:53,185 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:46:53,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:46:53,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:46:53,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:46:53,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:46:53,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:46:53,188 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:46:53,194 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:46:53,195 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:46:53,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:46:53,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:46:53,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:46:53,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:46:53,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:46:53,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:46:53,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:46:53,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:46:53,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:46:53,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:46:53,201 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:46:53,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:46:53,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:46:53,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:46:53,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:46:53,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:46:53,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:46:53,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:46:53,204 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2023-11-24 21:46:53,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:46:53,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:46:53,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:46:53,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:46:53,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:46:53,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:46:56,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:46:57,015 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:46:57,015 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:46:57,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/fa808e2a7/2e27ee9b452a44d88789e300b88149a6/FLAGd4c7f8644 [2023-11-24 21:46:57,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/fa808e2a7/2e27ee9b452a44d88789e300b88149a6 [2023-11-24 21:46:57,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:46:57,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:46:57,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:46:57,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:46:57,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:46:57,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb4c830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57, skipping insertion in model container [2023-11-24 21:46:57,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:46:57,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:46:57,565 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:46:57,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:46:57,710 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:46:57,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57 WrapperNode [2023-11-24 21:46:57,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:46:57,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:46:57,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:46:57,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:46:57,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,799 INFO L138 Inliner]: procedures = 163, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-24 21:46:57,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:46:57,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:46:57,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:46:57,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:46:57,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,830 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2023-11-24 21:46:57,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:46:57,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:46:57,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:46:57,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:46:57,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (1/1) ... [2023-11-24 21:46:57,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:46:57,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:46:57,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:46:57,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:46:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:46:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:46:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:46:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:46:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 21:46:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:46:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:46:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 21:46:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 21:46:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:46:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:46:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:46:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:46:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:46:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 21:46:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:46:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:46:57,936 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 21:46:58,084 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:46:58,087 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:46:58,279 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:46:58,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:46:58,451 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 21:46:58,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:46:58 BoogieIcfgContainer [2023-11-24 21:46:58,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:46:58,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:46:58,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:46:58,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:46:58,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:46:57" (1/3) ... [2023-11-24 21:46:58,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612110ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:46:58, skipping insertion in model container [2023-11-24 21:46:58,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:46:57" (2/3) ... [2023-11-24 21:46:58,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612110ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:46:58, skipping insertion in model container [2023-11-24 21:46:58,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:46:58" (3/3) ... [2023-11-24 21:46:58,462 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:46:58,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:46:58,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 21:46:58,487 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 21:46:58,528 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 21:46:58,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 21:46:58,593 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-24 21:46:58,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:46:58,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 2/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2023-11-24 21:46:58,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 21:46:58,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 63 flow [2023-11-24 21:46:58,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:46:58,619 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=PETRI_NET, 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;@6e0b28f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:46:58,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 21:46:58,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-24 21:46:58,624 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-24 21:46:58,625 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:46:58,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:46:58,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:46:58,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:46:58,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:58,632 INFO L85 PathProgramCache]: Analyzing trace with hash 6862, now seen corresponding path program 1 times [2023-11-24 21:46:58,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:46:58,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223692624] [2023-11-24 21:46:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:58,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:46:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:46:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:46:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:46:58,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223692624] [2023-11-24 21:46:58,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223692624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:46:58,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:46:58,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:46:58,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485928242] [2023-11-24 21:46:58,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:46:59,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:46:59,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:46:59,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:46:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:46:59,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2023-11-24 21:46:59,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:46:59,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2023-11-24 21:46:59,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:46:59,205 INFO L124 PetriNetUnfolderBase]: 42/139 cut-off events. [2023-11-24 21:46:59,205 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:46:59,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 139 events. 42/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 532 event pairs, 36 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 232. Up to 87 conditions per place. [2023-11-24 21:46:59,212 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 20 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2023-11-24 21:46:59,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 111 flow [2023-11-24 21:46:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:46:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:46:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2023-11-24 21:46:59,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2023-11-24 21:46:59,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:46:59,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,242 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 63 flow. Second operand 3 states and 58 transitions. [2023-11-24 21:46:59,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 111 flow [2023-11-24 21:46:59,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-24 21:46:59,260 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 58 flow [2023-11-24 21:46:59,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-11-24 21:46:59,266 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-11-24 21:46:59,267 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 58 flow [2023-11-24 21:46:59,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:46:59,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:46:59,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:46:59,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:46:59,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash 6863, now seen corresponding path program 1 times [2023-11-24 21:46:59,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:46:59,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247826012] [2023-11-24 21:46:59,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:59,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:46:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:46:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:46:59,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:46:59,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247826012] [2023-11-24 21:46:59,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247826012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:46:59,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:46:59,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:46:59,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572025276] [2023-11-24 21:46:59,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:46:59,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:46:59,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:46:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:46:59,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:46:59,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2023-11-24 21:46:59,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:46:59,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2023-11-24 21:46:59,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:46:59,614 INFO L124 PetriNetUnfolderBase]: 42/138 cut-off events. [2023-11-24 21:46:59,614 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-24 21:46:59,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 138 events. 42/138 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 531 event pairs, 36 based on Foata normal form. 1/136 useless extension candidates. Maximal degree in co-relation 239. Up to 86 conditions per place. [2023-11-24 21:46:59,617 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 19 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-11-24 21:46:59,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 110 flow [2023-11-24 21:46:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:46:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:46:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2023-11-24 21:46:59,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2023-11-24 21:46:59,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:46:59,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2023-11-24 21:46:59,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,622 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 58 flow. Second operand 3 states and 58 transitions. [2023-11-24 21:46:59,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 110 flow [2023-11-24 21:46:59,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:46:59,624 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 56 flow [2023-11-24 21:46:59,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-11-24 21:46:59,625 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-11-24 21:46:59,625 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 56 flow [2023-11-24 21:46:59,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:46:59,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:46:59,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:46:59,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:46:59,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:59,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1472497021, now seen corresponding path program 1 times [2023-11-24 21:46:59,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:46:59,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843674283] [2023-11-24 21:46:59,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:59,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:46:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:46:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:46:59,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:46:59,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843674283] [2023-11-24 21:46:59,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843674283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:46:59,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:46:59,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:46:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414642122] [2023-11-24 21:46:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:46:59,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:46:59,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:46:59,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:46:59,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:46:59,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2023-11-24 21:46:59,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:46:59,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2023-11-24 21:46:59,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:46:59,898 INFO L124 PetriNetUnfolderBase]: 42/131 cut-off events. [2023-11-24 21:46:59,898 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-24 21:46:59,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 131 events. 42/131 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 486 event pairs, 36 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 232. Up to 86 conditions per place. [2023-11-24 21:46:59,900 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 13 selfloop transitions, 1 changer transitions 7/30 dead transitions. [2023-11-24 21:46:59,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 108 flow [2023-11-24 21:46:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:46:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-24 21:46:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2023-11-24 21:46:59,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.546875 [2023-11-24 21:46:59,902 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2023-11-24 21:46:59,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2023-11-24 21:46:59,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:46:59,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2023-11-24 21:46:59,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,905 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,905 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 56 flow. Second operand 4 states and 70 transitions. [2023-11-24 21:46:59,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 108 flow [2023-11-24 21:46:59,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:46:59,907 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 50 flow [2023-11-24 21:46:59,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2023-11-24 21:46:59,908 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-11-24 21:46:59,909 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 50 flow [2023-11-24 21:46:59,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:46:59,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:46:59,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:46:59,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:46:59,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:46:59,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:46:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1472497291, now seen corresponding path program 1 times [2023-11-24 21:46:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:46:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532673618] [2023-11-24 21:46:59,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:46:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:46:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:46:59,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:46:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:46:59,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 21:46:59,996 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:46:59,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-11-24 21:46:59,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-24 21:46:59,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-11-24 21:47:00,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-24 21:47:00,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 21:47:00,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:47:00,000 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 21:47:00,006 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 21:47:00,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:47:00,022 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-24 21:47:00,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:47:00 BasicIcfg [2023-11-24 21:47:00,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:47:00,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:47:00,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:47:00,040 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:47:00,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:46:58" (3/4) ... [2023-11-24 21:47:00,042 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 21:47:00,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:47:00,045 INFO L158 Benchmark]: Toolchain (without parser) took 2992.39ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 93.2MB in the beginning and 102.5MB in the end (delta: -9.3MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,051 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:47:00,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.82ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 92.8MB in the beginning and 157.2MB in the end (delta: -64.4MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.72ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 100.7kB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,052 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 188.7MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,053 INFO L158 Benchmark]: RCFGBuilder took 605.14ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 129.9MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,053 INFO L158 Benchmark]: TraceAbstraction took 1583.46ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 102.5MB in the end (delta: 27.1MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-11-24 21:47:00,054 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 188.7MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:47:00,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.82ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 92.8MB in the beginning and 157.2MB in the end (delta: -64.4MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.72ms. Allocated memory is still 188.7MB. Free memory was 157.2MB in the beginning and 157.1MB in the end (delta: 100.7kB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 188.7MB. Free memory was 157.1MB in the beginning and 155.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.14ms. Allocated memory is still 188.7MB. Free memory was 155.0MB in the beginning and 129.9MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1583.46ms. Allocated memory is still 188.7MB. Free memory was 129.6MB in the beginning and 102.5MB in the end (delta: 27.1MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 188.7MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 21:47:00,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:47:02,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:47:02,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:47:03,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:47:03,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:47:03,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:47:03,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:47:03,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:47:03,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:47:03,043 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:47:03,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:47:03,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:47:03,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:47:03,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:47:03,046 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:47:03,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:47:03,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:47:03,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:47:03,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:47:03,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:47:03,055 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:47:03,060 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:47:03,061 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:47:03,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:47:03,062 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:47:03,062 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:47:03,063 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:47:03,063 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:47:03,064 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:47:03,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:47:03,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:47:03,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:47:03,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:47:03,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:47:03,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:47:03,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:47:03,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:47:03,071 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:47:03,071 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:47:03,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:47:03,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:47:03,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:47:03,072 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:47:03,072 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:47:03,073 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2023-11-24 21:47:03,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:47:03,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:47:03,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:47:03,514 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:47:03,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:47:03,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:47:06,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:47:07,123 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:47:07,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:47:07,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/14a1d8081/51516d859a5048c9959e77eb3808ce31/FLAGd83b1200e [2023-11-24 21:47:07,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/data/14a1d8081/51516d859a5048c9959e77eb3808ce31 [2023-11-24 21:47:07,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:47:07,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:47:07,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:47:07,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:47:07,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:47:07,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:07,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b4d92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07, skipping insertion in model container [2023-11-24 21:47:07,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:07,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:47:07,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:47:07,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:47:07,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:47:07,930 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:47:07,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07 WrapperNode [2023-11-24 21:47:07,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:47:07,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:47:07,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:47:07,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:47:07,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:07,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,006 INFO L138 Inliner]: procedures = 167, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-24 21:47:08,006 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:47:08,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:47:08,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:47:08,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:47:08,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,060 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2023-11-24 21:47:08,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:47:08,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:47:08,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:47:08,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:47:08,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (1/1) ... [2023-11-24 21:47:08,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:47:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:47:08,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:47:08,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:47:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 21:47:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:47:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:47:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 21:47:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 21:47:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:47:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:47:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:47:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:47:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:47:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:47:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:47:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:47:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:47:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-24 21:47:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-24 21:47:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-24 21:47:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-24 21:47:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 21:47:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:47:08,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:47:08,222 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 21:47:08,410 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:47:08,412 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:47:08,651 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:47:08,868 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:47:08,869 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 21:47:08,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:47:08 BoogieIcfgContainer [2023-11-24 21:47:08,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:47:08,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:47:08,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:47:08,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:47:08,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:47:07" (1/3) ... [2023-11-24 21:47:08,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620540a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:47:08, skipping insertion in model container [2023-11-24 21:47:08,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:47:07" (2/3) ... [2023-11-24 21:47:08,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620540a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:47:08, skipping insertion in model container [2023-11-24 21:47:08,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:47:08" (3/3) ... [2023-11-24 21:47:08,880 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-11-24 21:47:08,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:47:08,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 21:47:08,901 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 21:47:08,950 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 21:47:08,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 21:47:09,027 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-24 21:47:09,027 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:47:09,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 31 events. 2/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2023-11-24 21:47:09,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 32 transitions, 68 flow [2023-11-24 21:47:09,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 30 transitions, 63 flow [2023-11-24 21:47:09,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:47:09,050 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=PETRI_NET, 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;@33d9a3b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:47:09,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 21:47:09,053 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-24 21:47:09,054 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-24 21:47:09,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:47:09,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:47:09,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:47:09,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:47:09,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash 6926, now seen corresponding path program 1 times [2023-11-24 21:47:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118220173] [2023-11-24 21:47:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:09,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:09,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:09,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:47:09,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 21:47:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:09,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:47:09,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:09,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 21:47:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:47:09,316 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:09,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:09,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118220173] [2023-11-24 21:47:09,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118220173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:09,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:09,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:47:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30295524] [2023-11-24 21:47:09,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:09,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:09,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:09,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:09,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2023-11-24 21:47:09,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:47:09,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2023-11-24 21:47:09,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:47:09,527 INFO L124 PetriNetUnfolderBase]: 42/139 cut-off events. [2023-11-24 21:47:09,528 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:47:09,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 139 events. 42/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 532 event pairs, 36 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 232. Up to 87 conditions per place. [2023-11-24 21:47:09,535 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 20 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2023-11-24 21:47:09,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 111 flow [2023-11-24 21:47:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:47:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2023-11-24 21:47:09,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2023-11-24 21:47:09,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2023-11-24 21:47:09,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2023-11-24 21:47:09,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:47:09,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2023-11-24 21:47:09,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,566 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 63 flow. Second operand 3 states and 58 transitions. [2023-11-24 21:47:09,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 111 flow [2023-11-24 21:47:09,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-24 21:47:09,572 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 58 flow [2023-11-24 21:47:09,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-11-24 21:47:09,580 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-11-24 21:47:09,580 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 58 flow [2023-11-24 21:47:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:47:09,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-24 21:47:09,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/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)] Ended with exit code 0 [2023-11-24 21:47:09,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:09,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:47:09,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash 6927, now seen corresponding path program 1 times [2023-11-24 21:47:09,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:09,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031024181] [2023-11-24 21:47:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:09,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:09,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:09,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:47:09,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-24 21:47:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:09,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:47:09,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:09,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 21:47:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:47:09,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:09,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:09,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031024181] [2023-11-24 21:47:09,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031024181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:09,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:09,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:47:09,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005920063] [2023-11-24 21:47:09,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:09,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:47:09,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:09,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:47:09,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:47:09,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2023-11-24 21:47:09,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:09,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:47:09,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2023-11-24 21:47:09,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:47:09,995 INFO L124 PetriNetUnfolderBase]: 42/138 cut-off events. [2023-11-24 21:47:09,996 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-24 21:47:09,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 138 events. 42/138 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 531 event pairs, 36 based on Foata normal form. 1/136 useless extension candidates. Maximal degree in co-relation 239. Up to 86 conditions per place. [2023-11-24 21:47:09,998 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 19 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-11-24 21:47:09,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 110 flow [2023-11-24 21:47:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:47:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 21:47:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2023-11-24 21:47:10,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2023-11-24 21:47:10,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2023-11-24 21:47:10,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2023-11-24 21:47:10,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:47:10,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2023-11-24 21:47:10,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,003 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 58 flow. Second operand 3 states and 58 transitions. [2023-11-24 21:47:10,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 110 flow [2023-11-24 21:47:10,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:47:10,014 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 56 flow [2023-11-24 21:47:10,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2023-11-24 21:47:10,016 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-11-24 21:47:10,016 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 56 flow [2023-11-24 21:47:10,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:47:10,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:47:10,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-24 21:47:10,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:10,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:47:10,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1138187265, now seen corresponding path program 1 times [2023-11-24 21:47:10,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:10,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250083833] [2023-11-24 21:47:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:10,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:10,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:10,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:47:10,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-24 21:47:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:47:10,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:47:10,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:47:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:47:10,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:47:10,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:47:10,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250083833] [2023-11-24 21:47:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250083833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:47:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:47:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:47:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956536123] [2023-11-24 21:47:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:47:10,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:47:10,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:47:10,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:47:10,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:47:10,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2023-11-24 21:47:10,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 21:47:10,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2023-11-24 21:47:10,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 21:47:10,548 INFO L124 PetriNetUnfolderBase]: 45/140 cut-off events. [2023-11-24 21:47:10,548 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 21:47:10,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 140 events. 45/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 504 event pairs, 17 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 246. Up to 58 conditions per place. [2023-11-24 21:47:10,550 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 24 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2023-11-24 21:47:10,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 38 transitions, 140 flow [2023-11-24 21:47:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:47:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-24 21:47:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2023-11-24 21:47:10,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56875 [2023-11-24 21:47:10,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 91 transitions. [2023-11-24 21:47:10,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 91 transitions. [2023-11-24 21:47:10,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 21:47:10,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 91 transitions. [2023-11-24 21:47:10,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,557 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 32.0) internal successors, (192), 6 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,557 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 56 flow. Second operand 5 states and 91 transitions. [2023-11-24 21:47:10,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 38 transitions, 140 flow [2023-11-24 21:47:10,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 38 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 21:47:10,561 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 86 flow [2023-11-24 21:47:10,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-11-24 21:47:10,562 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2023-11-24 21:47:10,562 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 86 flow [2023-11-24 21:47:10,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:47:10,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 21:47:10,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:47:10,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:47:10,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:10,766 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 21:47:10,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:47:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1138186995, now seen corresponding path program 1 times [2023-11-24 21:47:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:47:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176311522] [2023-11-24 21:47:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:47:10,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:10,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:47:10,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 21:47:10,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 21:47:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:47:10,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:47:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:47:10,957 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-24 21:47:10,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:47:10,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2023-11-24 21:47:10,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-24 21:47:10,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2023-11-24 21:47:10,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-24 21:47:10,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 21:47:10,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:47:11,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:47:11,165 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 21:47:11,170 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 21:47:11,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:47:11,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-24 21:47:11,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:47:11 BasicIcfg [2023-11-24 21:47:11,209 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:47:11,210 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:47:11,211 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:47:11,211 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:47:11,211 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:47:08" (3/4) ... [2023-11-24 21:47:11,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 21:47:11,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:47:11,219 INFO L158 Benchmark]: Toolchain (without parser) took 4052.01ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.5MB in the beginning and 36.8MB in the end (delta: 13.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,220 INFO L158 Benchmark]: CDTParser took 2.29ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:47:11,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.67ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.2MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.87ms. Allocated memory is still 75.5MB. Free memory was 48.1MB in the beginning and 45.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,236 INFO L158 Benchmark]: Boogie Preprocessor took 98.44ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 43.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,239 INFO L158 Benchmark]: RCFGBuilder took 763.24ms. Allocated memory is still 75.5MB. Free memory was 43.4MB in the beginning and 52.1MB in the end (delta: -8.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,241 INFO L158 Benchmark]: TraceAbstraction took 2336.36ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.4MB in the beginning and 37.2MB in the end (delta: 14.2MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-24 21:47:11,244 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 92.3MB. Free memory was 37.2MB in the beginning and 36.8MB in the end (delta: 359.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:47:11,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.29ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.67ms. Allocated memory is still 75.5MB. Free memory was 50.3MB in the beginning and 48.1MB in the end (delta: 2.2MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.87ms. Allocated memory is still 75.5MB. Free memory was 48.1MB in the beginning and 45.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.44ms. Allocated memory is still 75.5MB. Free memory was 45.8MB in the beginning and 43.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 763.24ms. Allocated memory is still 75.5MB. Free memory was 43.4MB in the beginning and 52.1MB in the end (delta: -8.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2336.36ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.4MB in the beginning and 37.2MB in the end (delta: 14.2MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 92.3MB. Free memory was 37.2MB in the beginning and 36.8MB in the end (delta: 359.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] [L18] 0 __assert_fail ("0", "13-privatized_41-traces-ex-7_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=3, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 2 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 21:47:11,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95d828c7-cf80-4d3e-bf40-6a1fb1493b72/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample