./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:33:17,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:33:17,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:33:17,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:33:17,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:33:17,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:33:17,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:33:17,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:33:17,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:33:17,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:33:17,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:33:17,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:33:17,869 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:33:17,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:33:17,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:33:17,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:33:17,875 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:33:17,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:33:17,880 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:33:17,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:33:17,881 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:33:17,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:33:17,883 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:33:17,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:33:17,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:33:17,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:33:17,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:33:17,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:33:17,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:33:17,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:33:17,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:33:17,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:33:17,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:33:17,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:33:17,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:33:17,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:33:17,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:33:17,898 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:33:17,898 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_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8118921f4e94a266cc060fbf2fdaa97ed8f96343f174115bf05a8f09a1b77a8 [2023-11-06 22:33:18,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:33:18,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:33:18,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:33:18,295 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:33:18,296 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:33:18,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 22:33:21,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:33:21,857 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:33:21,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/sv-benchmarks/c/pthread/reorder_2.i [2023-11-06 22:33:21,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/data/0dc53cc9c/56547d3029e443e5923b6640ed6baa83/FLAG94a5f5984 [2023-11-06 22:33:21,908 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/data/0dc53cc9c/56547d3029e443e5923b6640ed6baa83 [2023-11-06 22:33:21,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:33:21,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:33:21,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:21,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:33:21,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:33:21,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:21" (1/1) ... [2023-11-06 22:33:21,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38de3516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:21, skipping insertion in model container [2023-11-06 22:33:21,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:21" (1/1) ... [2023-11-06 22:33:21,978 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:33:22,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:22,556 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:33:22,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:22,800 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:33:22,808 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:33:22,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22 WrapperNode [2023-11-06 22:33:22,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:22,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:22,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:33:22,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:33:22,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,910 INFO L138 Inliner]: procedures = 372, calls = 47, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2023-11-06 22:33:22,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:22,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:33:22,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:33:22,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:33:22,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:33:22,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:33:22,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:33:22,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:33:22,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (1/1) ... [2023-11-06 22:33:22,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:33:23,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:23,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:23,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:33:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-06 22:33:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:33:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:33:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:33:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:33:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-06 22:33:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-06 22:33:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:33:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:33:23,125 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-06 22:33:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-06 22:33:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:33:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:33:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:33:23,127 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:33:23,273 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:33:23,275 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:33:23,695 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:33:23,705 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:33:23,705 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:33:23,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:23 BoogieIcfgContainer [2023-11-06 22:33:23,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:33:23,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:33:23,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:33:23,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:33:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:33:21" (1/3) ... [2023-11-06 22:33:23,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:23, skipping insertion in model container [2023-11-06 22:33:23,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:22" (2/3) ... [2023-11-06 22:33:23,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567078c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:23, skipping insertion in model container [2023-11-06 22:33:23,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:23" (3/3) ... [2023-11-06 22:33:23,726 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2023-11-06 22:33:23,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:33:23,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-06 22:33:23,748 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:33:23,888 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 22:33:23,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,145 INFO L124 PetriNetUnfolderBase]: 39/475 cut-off events. [2023-11-06 22:33:24,146 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:33:24,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 475 events. 39/475 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2052 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 260. Up to 8 conditions per place. [2023-11-06 22:33:24,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,170 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:33:24,182 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,186 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 230 transitions, 480 flow [2023-11-06 22:33:24,351 INFO L124 PetriNetUnfolderBase]: 39/475 cut-off events. [2023-11-06 22:33:24,351 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:33:24,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 475 events. 39/475 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2052 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 260. Up to 8 conditions per place. [2023-11-06 22:33:24,366 INFO L119 LiptonReduction]: Number of co-enabled transitions 4240 [2023-11-06 22:33:51,470 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 231 DAG size of output: 217 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:01,288 WARN L293 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 247 DAG size of output: 225 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:05,749 INFO L134 LiptonReduction]: Checked pairs total: 6111 [2023-11-06 22:34:05,749 INFO L136 LiptonReduction]: Total number of compositions: 278 [2023-11-06 22:34:05,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:34:05,796 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;@6bef8b28, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:34:05,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-06 22:34:05,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:34:05,801 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:34:05,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:34:05,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:05,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:34:05,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2023-11-06 22:34:05,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:05,810 INFO L85 PathProgramCache]: Analyzing trace with hash 843, now seen corresponding path program 1 times [2023-11-06 22:34:05,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:05,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12383639] [2023-11-06 22:34:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:05,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:34:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:34:06,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12383639] [2023-11-06 22:34:06,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12383639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:34:06,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:34:06,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:34:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059340032] [2023-11-06 22:34:06,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:34:06,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:34:06,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:06,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:34:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:34:06,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 508 [2023-11-06 22:34:06,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 140 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-11-06 22:34:06,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:34:06,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 508 [2023-11-06 22:34:06,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:34:06,349 INFO L124 PetriNetUnfolderBase]: 262/628 cut-off events. [2023-11-06 22:34:06,349 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-06 22:34:06,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 628 events. 262/628 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3712 event pairs, 246 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 902. Up to 535 conditions per place. [2023-11-06 22:34:06,358 INFO L140 encePairwiseOnDemand]: 495/508 looper letters, 35 selfloop transitions, 0 changer transitions 0/47 dead transitions. [2023-11-06 22:34:06,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 184 flow [2023-11-06 22:34:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:34:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:34:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 470 transitions. [2023-11-06 22:34:06,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625984251968504 [2023-11-06 22:34:06,415 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 470 transitions. [2023-11-06 22:34:06,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 470 transitions. [2023-11-06 22:34:06,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:34:06,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 470 transitions. [2023-11-06 22:34:06,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.0) internal successors, (470), 2 states have internal predecessors, (470), 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) [2023-11-06 22:34:06,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 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) [2023-11-06 22:34:06,444 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 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) [2023-11-06 22:34:06,446 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 140 flow. Second operand 2 states and 470 transitions. [2023-11-06 22:34:06,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 184 flow [2023-11-06 22:34:06,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:34:06,459 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 114 flow [2023-11-06 22:34:06,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-06 22:34:06,468 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -12 predicate places. [2023-11-06 22:34:06,468 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 114 flow [2023-11-06 22:34:06,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 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) [2023-11-06 22:34:06,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:06,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:34:06,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:34:06,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2023-11-06 22:34:06,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash 846, now seen corresponding path program 1 times [2023-11-06 22:34:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:06,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453732175] [2023-11-06 22:34:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:06,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:34:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:34:06,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:34:06,573 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:34:06,576 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 37 remaining) [2023-11-06 22:34:06,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (35 of 37 remaining) [2023-11-06 22:34:06,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 37 remaining) [2023-11-06 22:34:06,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 37 remaining) [2023-11-06 22:34:06,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 37 remaining) [2023-11-06 22:34:06,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 37 remaining) [2023-11-06 22:34:06,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 37 remaining) [2023-11-06 22:34:06,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 37 remaining) [2023-11-06 22:34:06,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 37 remaining) [2023-11-06 22:34:06,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 37 remaining) [2023-11-06 22:34:06,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 37 remaining) [2023-11-06 22:34:06,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 37 remaining) [2023-11-06 22:34:06,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 37 remaining) [2023-11-06 22:34:06,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 37 remaining) [2023-11-06 22:34:06,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 37 remaining) [2023-11-06 22:34:06,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 37 remaining) [2023-11-06 22:34:06,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 37 remaining) [2023-11-06 22:34:06,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 37 remaining) [2023-11-06 22:34:06,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 37 remaining) [2023-11-06 22:34:06,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 37 remaining) [2023-11-06 22:34:06,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 37 remaining) [2023-11-06 22:34:06,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 37 remaining) [2023-11-06 22:34:06,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 37 remaining) [2023-11-06 22:34:06,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 37 remaining) [2023-11-06 22:34:06,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 37 remaining) [2023-11-06 22:34:06,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 37 remaining) [2023-11-06 22:34:06,587 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 37 remaining) [2023-11-06 22:34:06,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 37 remaining) [2023-11-06 22:34:06,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 37 remaining) [2023-11-06 22:34:06,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 37 remaining) [2023-11-06 22:34:06,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 37 remaining) [2023-11-06 22:34:06,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 37 remaining) [2023-11-06 22:34:06,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 37 remaining) [2023-11-06 22:34:06,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK (3 of 37 remaining) [2023-11-06 22:34:06,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 37 remaining) [2023-11-06 22:34:06,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 37 remaining) [2023-11-06 22:34:06,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 37 remaining) [2023-11-06 22:34:06,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:34:06,592 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:34:06,600 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:34:06,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:34:06,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:34:06 BasicIcfg [2023-11-06 22:34:06,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:34:06,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:34:06,620 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:34:06,620 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:34:06,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:23" (3/4) ... [2023-11-06 22:34:06,622 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:34:06,664 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:34:06,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:34:06,665 INFO L158 Benchmark]: Toolchain (without parser) took 44752.73ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 151.4MB in the beginning and 165.0MB in the end (delta: -13.6MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,666 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:34:06,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.88ms. Allocated memory is still 182.5MB. Free memory was 151.4MB in the beginning and 111.8MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.45ms. Allocated memory is still 182.5MB. Free memory was 111.8MB in the beginning and 108.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,668 INFO L158 Benchmark]: Boogie Preprocessor took 58.29ms. Allocated memory is still 182.5MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,669 INFO L158 Benchmark]: RCFGBuilder took 747.33ms. Allocated memory is still 182.5MB. Free memory was 106.2MB in the beginning and 128.4MB in the end (delta: -22.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,669 INFO L158 Benchmark]: TraceAbstraction took 42899.12ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 128.4MB in the beginning and 167.1MB in the end (delta: -38.7MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,670 INFO L158 Benchmark]: Witness Printer took 44.55ms. Allocated memory is still 220.2MB. Free memory was 166.1MB in the beginning and 165.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:34:06,673 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.88ms. Allocated memory is still 182.5MB. Free memory was 151.4MB in the beginning and 111.8MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.45ms. Allocated memory is still 182.5MB. Free memory was 111.8MB in the beginning and 108.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.29ms. Allocated memory is still 182.5MB. Free memory was 108.3MB in the beginning and 106.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.33ms. Allocated memory is still 182.5MB. Free memory was 106.2MB in the beginning and 128.4MB in the end (delta: -22.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 42899.12ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 128.4MB in the beginning and 167.1MB in the end (delta: -38.7MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 44.55ms. Allocated memory is still 220.2MB. Free memory was 166.1MB in the beginning and 165.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.6s, 217 PlacesBefore, 61 PlacesAfterwards, 230 TransitionsBefore, 60 TransitionsAfterwards, 4240 CoEnabledTransitionPairs, 9 FixpointIterations, 129 TrivialSequentialCompositions, 109 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 14 ChoiceCompositions, 278 TotalNumberOfCompositions, 6111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4436, independent: 4388, independent conditional: 0, independent unconditional: 4388, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2466, independent: 2456, independent conditional: 0, independent unconditional: 2456, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4436, independent: 1932, independent conditional: 0, independent unconditional: 1932, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 2466, unknown conditional: 0, unknown unconditional: 2466] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iSet = 2; [L1237] static int iCheck = 2; [L1238] static int a = 0; [L1239] static int b = 0; [L1245] int i, err; [L1246] COND TRUE argc != 1 [L1247] COND FALSE !(argc != 3) [L1251] argv[1] - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1261]: 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. - UnprovableResult [Line: 1267]: 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 5 procedures, 234 locations, 37 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: 42.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 41.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2023-11-06 22:34:06,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43be9b12-8ad5-4e7d-b464-40fbd99ab757/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)