./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi005.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu --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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:02,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:02,532 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:57:02,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:02,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:02,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:02,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:02,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:02,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:02,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:02,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:02,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:02,589 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:02,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:02,591 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:02,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:02,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:02,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:02,593 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:57:02,593 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:57:02,594 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:57:02,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:02,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:57:02,595 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:02,596 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:02,596 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:02,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:02,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:02,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:02,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:02,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:02,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:02,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:02,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:02,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:02,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:02,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:02,601 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:02,601 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_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2023-11-19 07:57:02,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:02,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:02,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:02,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:02,981 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:02,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 07:57:06,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:06,334 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:06,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 07:57:06,355 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/145e926d3/73e2518130ea4a9d98955e9604c25893/FLAGdc7c99561 [2023-11-19 07:57:06,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/145e926d3/73e2518130ea4a9d98955e9604c25893 [2023-11-19 07:57:06,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:06,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:06,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:06,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:06,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:06,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:06" (1/1) ... [2023-11-19 07:57:06,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428c9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:06, skipping insertion in model container [2023-11-19 07:57:06,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:06" (1/1) ... [2023-11-19 07:57:06,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:07,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:07,049 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:07,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:07,176 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:07,176 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:07,184 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:07,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07 WrapperNode [2023-11-19 07:57:07,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:07,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:07,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:07,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:07,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,262 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 176 [2023-11-19 07:57:07,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:07,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:07,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:07,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:07,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:07,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:07,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:07,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:07,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (1/1) ... [2023-11-19 07:57:07,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:07,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:07,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:07,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:57:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:07,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:57:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:57:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:57:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:57:07,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:57:07,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:07,420 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:57:07,593 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:07,595 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:08,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:08,352 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:08,353 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:57:08,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:08 BoogieIcfgContainer [2023-11-19 07:57:08,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:08,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:08,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:08,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:08,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:06" (1/3) ... [2023-11-19 07:57:08,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1d8a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:08, skipping insertion in model container [2023-11-19 07:57:08,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:07" (2/3) ... [2023-11-19 07:57:08,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1d8a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:08, skipping insertion in model container [2023-11-19 07:57:08,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:08" (3/3) ... [2023-11-19 07:57:08,369 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2023-11-19 07:57:08,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:08,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:57:08,392 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:57:08,451 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:57:08,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 113 transitions, 234 flow [2023-11-19 07:57:08,586 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-19 07:57:08,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:08,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 111 events. 7/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2023-11-19 07:57:08,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 113 transitions, 234 flow [2023-11-19 07:57:08,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 111 transitions, 228 flow [2023-11-19 07:57:08,605 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:08,629 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 111 transitions, 228 flow [2023-11-19 07:57:08,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 111 transitions, 228 flow [2023-11-19 07:57:08,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 111 transitions, 228 flow [2023-11-19 07:57:08,665 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-19 07:57:08,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:08,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 111 events. 7/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2023-11-19 07:57:08,670 INFO L119 LiptonReduction]: Number of co-enabled transitions 2178 [2023-11-19 07:57:15,547 INFO L134 LiptonReduction]: Checked pairs total: 4478 [2023-11-19 07:57:15,548 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-19 07:57:15,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:15,574 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;@5455b3c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:15,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-19 07:57:15,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:15,577 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:57:15,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:15,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:57:15,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:15,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash 640, now seen corresponding path program 1 times [2023-11-19 07:57:15,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391711406] [2023-11-19 07:57:15,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:15,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391711406] [2023-11-19 07:57:15,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391711406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:57:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557112630] [2023-11-19 07:57:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:15,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:15,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 235 [2023-11-19 07:57:15,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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) [2023-11-19 07:57:15,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:15,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 235 [2023-11-19 07:57:15,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:16,068 INFO L124 PetriNetUnfolderBase]: 287/500 cut-off events. [2023-11-19 07:57:16,069 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:57:16,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 500 events. 287/500 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1967 event pairs, 287 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 992. Up to 489 conditions per place. [2023-11-19 07:57:16,076 INFO L140 encePairwiseOnDemand]: 231/235 looper letters, 19 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-11-19 07:57:16,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 84 flow [2023-11-19 07:57:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:57:16,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 211 transitions. [2023-11-19 07:57:16,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44893617021276594 [2023-11-19 07:57:16,097 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 211 transitions. [2023-11-19 07:57:16,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 211 transitions. [2023-11-19 07:57:16,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:16,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 211 transitions. [2023-11-19 07:57:16,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 105.5) internal successors, (211), 2 states have internal predecessors, (211), 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) [2023-11-19 07:57:16,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-11-19 07:57:16,115 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 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) [2023-11-19 07:57:16,117 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 2 states and 211 transitions. [2023-11-19 07:57:16,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 84 flow [2023-11-19 07:57:16,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:16,122 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 44 flow [2023-11-19 07:57:16,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-11-19 07:57:16,129 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-11-19 07:57:16,129 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 44 flow [2023-11-19 07:57:16,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 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) [2023-11-19 07:57:16,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:16,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:57:16,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:16,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:16,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 605304389, now seen corresponding path program 1 times [2023-11-19 07:57:16,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:16,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496578605] [2023-11-19 07:57:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:16,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:16,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496578605] [2023-11-19 07:57:16,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496578605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:57:16,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147873597] [2023-11-19 07:57:16,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:16,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:16,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 235 [2023-11-19 07:57:16,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-19 07:57:16,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:16,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 235 [2023-11-19 07:57:16,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:16,721 INFO L124 PetriNetUnfolderBase]: 249/450 cut-off events. [2023-11-19 07:57:16,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:16,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 450 events. 249/450 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1874 event pairs, 21 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 886. Up to 373 conditions per place. [2023-11-19 07:57:16,726 INFO L140 encePairwiseOnDemand]: 232/235 looper letters, 24 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-19 07:57:16,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 110 flow [2023-11-19 07:57:16,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:16,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:57:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-11-19 07:57:16,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4340425531914894 [2023-11-19 07:57:16,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-11-19 07:57:16,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-11-19 07:57:16,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:16,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-11-19 07:57:16,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2023-11-19 07:57:16,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-11-19 07:57:16,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 235.0) internal successors, (940), 4 states have internal predecessors, (940), 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) [2023-11-19 07:57:16,739 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 44 flow. Second operand 3 states and 306 transitions. [2023-11-19 07:57:16,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 110 flow [2023-11-19 07:57:16,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:16,741 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 46 flow [2023-11-19 07:57:16,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-11-19 07:57:16,742 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-11-19 07:57:16,743 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 46 flow [2023-11-19 07:57:16,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2023-11-19 07:57:16,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:16,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:16,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:16,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:16,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:16,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1584568624, now seen corresponding path program 1 times [2023-11-19 07:57:16,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:16,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630892141] [2023-11-19 07:57:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:16,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:16,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:16,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:57:16,848 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:16,850 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-11-19 07:57:16,853 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-11-19 07:57:16,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (9 of 12 remaining) [2023-11-19 07:57:16,854 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-19 07:57:16,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-19 07:57:16,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-19 07:57:16,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-19 07:57:16,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2023-11-19 07:57:16,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-11-19 07:57:16,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-19 07:57:16,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-19 07:57:16,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-11-19 07:57:16,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:16,862 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:57:16,869 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:57:16,869 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:16,910 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 07:57:16,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:57:16,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:16 BasicIcfg [2023-11-19 07:57:16,934 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:16,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:16,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:16,939 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:16,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:08" (3/4) ... [2023-11-19 07:57:16,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:57:16,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:16,944 INFO L158 Benchmark]: Toolchain (without parser) took 10565.91ms. Allocated memory was 153.1MB in the beginning and 239.1MB in the end (delta: 86.0MB). Free memory was 105.4MB in the beginning and 177.2MB in the end (delta: -71.8MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,945 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:16,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.88ms. Allocated memory is still 153.1MB. Free memory was 105.4MB in the beginning and 80.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.69ms. Allocated memory is still 153.1MB. Free memory was 80.2MB in the beginning and 77.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,947 INFO L158 Benchmark]: Boogie Preprocessor took 45.48ms. Allocated memory is still 153.1MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,947 INFO L158 Benchmark]: RCFGBuilder took 1048.29ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 75.0MB in the beginning and 123.7MB in the end (delta: -48.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,948 INFO L158 Benchmark]: TraceAbstraction took 8574.10ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 122.7MB in the beginning and 177.2MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:16,948 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 239.1MB. Free memory is still 177.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:16,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.88ms. Allocated memory is still 153.1MB. Free memory was 105.4MB in the beginning and 80.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.69ms. Allocated memory is still 153.1MB. Free memory was 80.2MB in the beginning and 77.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.48ms. Allocated memory is still 153.1MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1048.29ms. Allocated memory was 153.1MB in the beginning and 199.2MB in the end (delta: 46.1MB). Free memory was 75.0MB in the beginning and 123.7MB in the end (delta: -48.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8574.10ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 122.7MB in the beginning and 177.2MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 239.1MB. Free memory is still 177.2MB. 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~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 111 PlacesBefore, 31 PlacesAfterwards, 111 TransitionsBefore, 24 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 7 ChoiceCompositions, 122 TotalNumberOfCompositions, 4478 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2044, independent: 1877, independent conditional: 0, independent unconditional: 1877, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1138, independent: 1097, independent conditional: 0, independent unconditional: 1097, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2044, independent: 780, independent conditional: 0, independent unconditional: 780, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 1138, unknown conditional: 0, unknown unconditional: 1138] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "rfi005.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 18]: 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 835]: 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: 837]: 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, 130 locations, 12 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: 8.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:57:16,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi005.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu --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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:19,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:19,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:57:19,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:19,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:19,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:19,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:19,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:19,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:19,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:19,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:19,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:19,843 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:19,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:19,845 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:19,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:19,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:19,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:19,847 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:57:19,848 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:57:19,848 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:57:19,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:19,849 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:57:19,849 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:57:19,850 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:57:19,850 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:19,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:19,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:19,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:19,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:19,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:19,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:19,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:19,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:19,855 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:57:19,855 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:57:19,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:19,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:19,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:19,857 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:57:19,857 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:19,857 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_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2023-11-19 07:57:20,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:20,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:20,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:20,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:20,295 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:20,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 07:57:23,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:23,725 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:23,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-19 07:57:23,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/827d47b65/a96d41eedc49484ba95a1db043017124/FLAGfca3a352f [2023-11-19 07:57:23,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/data/827d47b65/a96d41eedc49484ba95a1db043017124 [2023-11-19 07:57:23,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:23,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:23,782 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:23,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:23,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:23,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:23" (1/1) ... [2023-11-19 07:57:23,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192b8f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:23, skipping insertion in model container [2023-11-19 07:57:23,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:23" (1/1) ... [2023-11-19 07:57:23,843 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:24,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:24,364 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:24,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:24,530 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:24,531 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:24,539 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:24,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24 WrapperNode [2023-11-19 07:57:24,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:24,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:24,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:24,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:24,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,629 INFO L138 Inliner]: procedures = 178, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 177 [2023-11-19 07:57:24,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:24,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:24,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:24,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:24,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:24,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:24,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:24,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:24,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (1/1) ... [2023-11-19 07:57:24,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:24,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:24,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:24,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:57:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:57:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:57:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:57:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:57:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:57:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:57:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:57:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:24,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:24,836 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:57:25,069 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:25,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:25,661 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:25,925 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:25,925 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:57:25,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:25 BoogieIcfgContainer [2023-11-19 07:57:25,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:25,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:25,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:25,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:25,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:23" (1/3) ... [2023-11-19 07:57:25,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5812a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:25, skipping insertion in model container [2023-11-19 07:57:25,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24" (2/3) ... [2023-11-19 07:57:25,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5812a7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:25, skipping insertion in model container [2023-11-19 07:57:25,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:25" (3/3) ... [2023-11-19 07:57:25,945 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2023-11-19 07:57:25,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:25,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:57:25,966 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:57:26,048 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:57:26,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 114 transitions, 236 flow [2023-11-19 07:57:26,139 INFO L124 PetriNetUnfolderBase]: 7/112 cut-off events. [2023-11-19 07:57:26,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:26,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 112 events. 7/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2023-11-19 07:57:26,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 114 transitions, 236 flow [2023-11-19 07:57:26,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 112 transitions, 230 flow [2023-11-19 07:57:26,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:26,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 112 transitions, 230 flow [2023-11-19 07:57:26,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 112 transitions, 230 flow [2023-11-19 07:57:26,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 112 transitions, 230 flow [2023-11-19 07:57:26,197 INFO L124 PetriNetUnfolderBase]: 7/112 cut-off events. [2023-11-19 07:57:26,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:26,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 112 events. 7/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2023-11-19 07:57:26,202 INFO L119 LiptonReduction]: Number of co-enabled transitions 2178 [2023-11-19 07:57:35,871 INFO L134 LiptonReduction]: Checked pairs total: 4415 [2023-11-19 07:57:35,872 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-11-19 07:57:35,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:35,894 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;@2627c82a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:35,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-19 07:57:35,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:35,897 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:57:35,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:35,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:35,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:57:35,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:35,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:35,905 INFO L85 PathProgramCache]: Analyzing trace with hash 645, now seen corresponding path program 1 times [2023-11-19 07:57:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:35,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257423740] [2023-11-19 07:57:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:35,923 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 [2023-11-19 07:57:35,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:35,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:57:35,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:57:36,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:36,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:36,007 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:36,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257423740] [2023-11-19 07:57:36,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257423740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:36,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:57:36,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373996283] [2023-11-19 07:57:36,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:36,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:36,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:36,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:36,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:36,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 240 [2023-11-19 07:57:36,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 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) [2023-11-19 07:57:36,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:36,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 240 [2023-11-19 07:57:36,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:36,305 INFO L124 PetriNetUnfolderBase]: 287/500 cut-off events. [2023-11-19 07:57:36,305 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:57:36,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 500 events. 287/500 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1984 event pairs, 287 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 992. Up to 489 conditions per place. [2023-11-19 07:57:36,316 INFO L140 encePairwiseOnDemand]: 236/240 looper letters, 19 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2023-11-19 07:57:36,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 84 flow [2023-11-19 07:57:36,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:57:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 213 transitions. [2023-11-19 07:57:36,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44375 [2023-11-19 07:57:36,339 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 213 transitions. [2023-11-19 07:57:36,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 213 transitions. [2023-11-19 07:57:36,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:36,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 213 transitions. [2023-11-19 07:57:36,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 106.5) internal successors, (213), 2 states have internal predecessors, (213), 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) [2023-11-19 07:57:36,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2023-11-19 07:57:36,361 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2023-11-19 07:57:36,363 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 2 states and 213 transitions. [2023-11-19 07:57:36,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 84 flow [2023-11-19 07:57:36,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:36,368 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 44 flow [2023-11-19 07:57:36,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-11-19 07:57:36,375 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2023-11-19 07:57:36,375 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 44 flow [2023-11-19 07:57:36,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 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) [2023-11-19 07:57:36,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:36,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:57:36,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:36,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:36,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:36,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:36,580 INFO L85 PathProgramCache]: Analyzing trace with hash 609924973, now seen corresponding path program 1 times [2023-11-19 07:57:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:36,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072350688] [2023-11-19 07:57:36,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:36,581 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 [2023-11-19 07:57:36,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:36,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:57:36,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:36,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:36,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:36,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:36,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072350688] [2023-11-19 07:57:36,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072350688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:36,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:36,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:57:36,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127319604] [2023-11-19 07:57:36,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:36,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:36,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:36,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 240 [2023-11-19 07:57:36,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-19 07:57:36,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:36,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 240 [2023-11-19 07:57:36,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:36,944 INFO L124 PetriNetUnfolderBase]: 249/450 cut-off events. [2023-11-19 07:57:36,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:36,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 450 events. 249/450 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1894 event pairs, 21 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 886. Up to 373 conditions per place. [2023-11-19 07:57:36,949 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 24 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-19 07:57:36,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 110 flow [2023-11-19 07:57:36,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:57:36,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2023-11-19 07:57:36,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42916666666666664 [2023-11-19 07:57:36,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2023-11-19 07:57:36,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2023-11-19 07:57:36,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:36,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2023-11-19 07:57:36,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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) [2023-11-19 07:57:36,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-19 07:57:36,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-11-19 07:57:36,961 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 44 flow. Second operand 3 states and 309 transitions. [2023-11-19 07:57:36,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 110 flow [2023-11-19 07:57:36,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:36,963 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 46 flow [2023-11-19 07:57:36,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-11-19 07:57:36,964 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-11-19 07:57:36,964 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 46 flow [2023-11-19 07:57:36,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-19 07:57:36,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:36,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:36,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 07:57:37,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:37,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, P1Err1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2023-11-19 07:57:37,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1727807722, now seen corresponding path program 1 times [2023-11-19 07:57:37,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:37,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14050622] [2023-11-19 07:57:37,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:37,171 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 [2023-11-19 07:57:37,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:37,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:57:37,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:37,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:37,358 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-19 07:57:37,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:37,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2023-11-19 07:57:37,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (10 of 12 remaining) [2023-11-19 07:57:37,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (9 of 12 remaining) [2023-11-19 07:57:37,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2023-11-19 07:57:37,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2023-11-19 07:57:37,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2023-11-19 07:57:37,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2023-11-19 07:57:37,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2023-11-19 07:57:37,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2023-11-19 07:57:37,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-19 07:57:37,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-19 07:57:37,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2023-11-19 07:57:37,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:37,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:57:37,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:57:37,578 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:57:37,578 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:37,633 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-19 07:57:37,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 07:57:37,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:37 BasicIcfg [2023-11-19 07:57:37,682 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:37,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:37,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:37,683 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:37,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:25" (3/4) ... [2023-11-19 07:57:37,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:57:37,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:37,690 INFO L158 Benchmark]: Toolchain (without parser) took 13911.16ms. Allocated memory was 73.4MB in the beginning and 119.5MB in the end (delta: 46.1MB). Free memory was 39.7MB in the beginning and 90.1MB in the end (delta: -50.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:37,690 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:37,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.06ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-19 07:57:37,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.75ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 34.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:37,692 INFO L158 Benchmark]: Boogie Preprocessor took 83.48ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 32.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:37,694 INFO L158 Benchmark]: RCFGBuilder took 1207.04ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 32.2MB in the beginning and 45.4MB in the end (delta: -13.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-19 07:57:37,696 INFO L158 Benchmark]: TraceAbstraction took 11746.27ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 45.0MB in the beginning and 90.1MB in the end (delta: -45.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:37,696 INFO L158 Benchmark]: Witness Printer took 6.69ms. Allocated memory is still 119.5MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:37,704 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.06ms. Allocated memory is still 73.4MB. Free memory was 39.7MB in the beginning and 37.6MB in the end (delta: 2.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.75ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 34.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.48ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 32.2MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1207.04ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 32.2MB in the beginning and 45.4MB in the end (delta: -13.2MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11746.27ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 45.0MB in the beginning and 90.1MB in the end (delta: -45.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Witness Printer took 6.69ms. Allocated memory is still 119.5MB. Free memory is still 90.1MB. 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~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7s, 112 PlacesBefore, 31 PlacesAfterwards, 112 TransitionsBefore, 24 TransitionsAfterwards, 2178 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 7 ChoiceCompositions, 126 TotalNumberOfCompositions, 4415 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2096, independent: 1929, independent conditional: 0, independent unconditional: 1929, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1141, independent: 1105, independent conditional: 0, independent unconditional: 1105, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2096, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 1141, unknown conditional: 0, unknown unconditional: 1141] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1665={3:0}, t1666={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "rfi005.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 18]: 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 835]: 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: 837]: 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, 131 locations, 12 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: 11.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:57:37,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3377bf2-ad7f-403d-b34d-6df9b600ada4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample