./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi010.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB --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 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:19:37,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:19:37,856 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:19:37,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:19:37,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:19:37,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:19:37,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:19:37,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:19:37,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:19:37,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:19:37,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:19:37,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:19:37,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:19:37,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:19:37,918 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:19:37,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:19:37,919 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:19:37,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:19:37,920 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:19:37,921 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:37,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:37,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:19:37,922 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:37,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:19:37,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:37,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:37,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:19:37,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:19:37,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:19:37,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:19:37,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:19:37,925 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:19:37,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:19:37,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:19:37,926 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2024-11-28 04:19:38,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:19:38,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:19:38,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:19:38,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:19:38,321 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:19:38,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 04:19:41,851 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/430f63ef9/7e96a963bdb146fa888a3ee79450f8f9/FLAG6878a62e8 [2024-11-28 04:19:42,255 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:19:42,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 04:19:42,279 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/430f63ef9/7e96a963bdb146fa888a3ee79450f8f9/FLAG6878a62e8 [2024-11-28 04:19:42,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/430f63ef9/7e96a963bdb146fa888a3ee79450f8f9 [2024-11-28 04:19:42,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:19:42,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:19:42,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:19:42,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:19:42,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:19:42,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:42,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70247a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42, skipping insertion in model container [2024-11-28 04:19:42,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:42,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:19:42,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:19:42,775 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:19:42,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:19:42,912 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:19:42,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42 WrapperNode [2024-11-28 04:19:42,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:19:42,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:19:42,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:19:42,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:19:42,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:42,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:42,979 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 131 [2024-11-28 04:19:42,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:19:42,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:19:42,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:19:42,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:19:42,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:42,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,035 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:19:43,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,055 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:19:43,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:19:43,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:19:43,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:19:43,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (1/1) ... [2024-11-28 04:19:43,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:19:43,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:19:43,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:19:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:19:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:19:43,154 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 04:19:43,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 04:19:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 04:19:43,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 04:19:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:19:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:19:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:19:43,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:19:43,160 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:19:43,375 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:19:43,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:19:43,846 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:19:43,847 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:19:44,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:19:44,203 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:19:44,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:19:44 BoogieIcfgContainer [2024-11-28 04:19:44,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:19:44,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:19:44,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:19:44,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:19:44,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:19:42" (1/3) ... [2024-11-28 04:19:44,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7870ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:19:44, skipping insertion in model container [2024-11-28 04:19:44,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:19:42" (2/3) ... [2024-11-28 04:19:44,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7870ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:19:44, skipping insertion in model container [2024-11-28 04:19:44,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:19:44" (3/3) ... [2024-11-28 04:19:44,223 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi010.i [2024-11-28 04:19:44,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:19:44,247 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi010.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 04:19:44,247 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:19:44,336 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:19:44,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2024-11-28 04:19:44,452 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-28 04:19:44,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:19:44,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-28 04:19:44,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2024-11-28 04:19:44,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2024-11-28 04:19:44,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:19:44,498 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@4893d92f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:19:44,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:19:44,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:19:44,510 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-28 04:19:44,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:19:44,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:44,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:19:44,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:44,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1653120221, now seen corresponding path program 1 times [2024-11-28 04:19:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:44,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909531060] [2024-11-28 04:19:44,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:44,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:45,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:45,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909531060] [2024-11-28 04:19:45,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909531060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:45,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:45,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:19:45,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305410496] [2024-11-28 04:19:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:45,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:19:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:45,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:19:45,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:19:45,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 37 [2024-11-28 04:19:45,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-28 04:19:45,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:45,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 37 [2024-11-28 04:19:45,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:45,689 INFO L124 PetriNetUnfolderBase]: 166/367 cut-off events. [2024-11-28 04:19:45,690 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:19:45,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 367 events. 166/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2053 event pairs, 18 based on Foata normal form. 30/392 useless extension candidates. Maximal degree in co-relation 662. Up to 245 conditions per place. [2024-11-28 04:19:45,703 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 22 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2024-11-28 04:19:45,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 138 flow [2024-11-28 04:19:45,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:19:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:19:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-28 04:19:45,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7117117117117117 [2024-11-28 04:19:45,722 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 79 transitions. [2024-11-28 04:19:45,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 138 flow [2024-11-28 04:19:45,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:19:45,735 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2024-11-28 04:19:45,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-28 04:19:45,745 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-28 04:19:45,746 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2024-11-28 04:19:45,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-28 04:19:45,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:45,746 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:45,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:19:45,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:45,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash -810893823, now seen corresponding path program 1 times [2024-11-28 04:19:45,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:45,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978613234] [2024-11-28 04:19:45,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:45,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:45,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:45,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978613234] [2024-11-28 04:19:45,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978613234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:45,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:45,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:19:45,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805698605] [2024-11-28 04:19:45,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:45,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:19:45,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:45,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:19:45,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:19:45,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-11-28 04:19:45,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-28 04:19:45,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:45,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-11-28 04:19:45,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:46,114 INFO L124 PetriNetUnfolderBase]: 144/348 cut-off events. [2024-11-28 04:19:46,115 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-28 04:19:46,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 348 events. 144/348 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1987 event pairs, 144 based on Foata normal form. 15/355 useless extension candidates. Maximal degree in co-relation 627. Up to 256 conditions per place. [2024-11-28 04:19:46,121 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 14 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2024-11-28 04:19:46,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 98 flow [2024-11-28 04:19:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:19:46,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:19:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-28 04:19:46,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5585585585585585 [2024-11-28 04:19:46,125 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 3 states and 62 transitions. [2024-11-28 04:19:46,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 98 flow [2024-11-28 04:19:46,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:19:46,127 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2024-11-28 04:19:46,130 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-28 04:19:46,131 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-28 04:19:46,131 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2024-11-28 04:19:46,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-28 04:19:46,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:46,131 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:46,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:19:46,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:46,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash -810893746, now seen corresponding path program 1 times [2024-11-28 04:19:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:46,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751783866] [2024-11-28 04:19:46,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:46,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:46,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751783866] [2024-11-28 04:19:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751783866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:46,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:46,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:19:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605885892] [2024-11-28 04:19:46,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:46,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:19:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:46,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:19:46,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:46,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-28 04:19:46,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-28 04:19:46,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:46,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-28 04:19:46,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:47,095 INFO L124 PetriNetUnfolderBase]: 183/405 cut-off events. [2024-11-28 04:19:47,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:19:47,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 405 events. 183/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2373 event pairs, 45 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 742. Up to 151 conditions per place. [2024-11-28 04:19:47,102 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 19 selfloop transitions, 2 changer transitions 26/58 dead transitions. [2024-11-28 04:19:47,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 58 transitions, 216 flow [2024-11-28 04:19:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:19:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 04:19:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-28 04:19:47,105 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543918918918919 [2024-11-28 04:19:47,105 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 8 states and 161 transitions. [2024-11-28 04:19:47,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 58 transitions, 216 flow [2024-11-28 04:19:47,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:19:47,111 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 75 flow [2024-11-28 04:19:47,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=75, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2024-11-28 04:19:47,112 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-11-28 04:19:47,112 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 75 flow [2024-11-28 04:19:47,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-28 04:19:47,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:47,114 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:47,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:19:47,114 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:47,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:47,116 INFO L85 PathProgramCache]: Analyzing trace with hash -548700291, now seen corresponding path program 1 times [2024-11-28 04:19:47,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:47,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152628430] [2024-11-28 04:19:47,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:47,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152628430] [2024-11-28 04:19:47,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152628430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:47,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:47,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:19:47,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819892704] [2024-11-28 04:19:47,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:47,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:19:47,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:47,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:19:47,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:19:47,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-28 04:19:47,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-28 04:19:47,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:47,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-28 04:19:47,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:47,858 INFO L124 PetriNetUnfolderBase]: 179/380 cut-off events. [2024-11-28 04:19:47,860 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-28 04:19:47,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 380 events. 179/380 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1755 event pairs, 31 based on Foata normal form. 24/400 useless extension candidates. Maximal degree in co-relation 816. Up to 171 conditions per place. [2024-11-28 04:19:47,866 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 31 selfloop transitions, 4 changer transitions 1/45 dead transitions. [2024-11-28 04:19:47,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 191 flow [2024-11-28 04:19:47,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:19:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:19:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-28 04:19:47,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081 [2024-11-28 04:19:47,870 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 75 flow. Second operand 4 states and 90 transitions. [2024-11-28 04:19:47,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 191 flow [2024-11-28 04:19:47,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 175 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-28 04:19:47,879 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 89 flow [2024-11-28 04:19:47,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-11-28 04:19:47,880 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-28 04:19:47,880 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 89 flow [2024-11-28 04:19:47,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-28 04:19:47,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:47,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:47,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:19:47,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:47,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:47,885 INFO L85 PathProgramCache]: Analyzing trace with hash 255318350, now seen corresponding path program 1 times [2024-11-28 04:19:47,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:47,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81769419] [2024-11-28 04:19:47,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:47,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:48,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:48,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81769419] [2024-11-28 04:19:48,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81769419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:48,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:48,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:19:48,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248200858] [2024-11-28 04:19:48,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:48,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:19:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:48,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:19:48,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:19:48,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-28 04:19:48,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-28 04:19:48,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:48,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-28 04:19:48,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:48,673 INFO L124 PetriNetUnfolderBase]: 97/212 cut-off events. [2024-11-28 04:19:48,674 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-28 04:19:48,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 212 events. 97/212 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 715 event pairs, 21 based on Foata normal form. 16/224 useless extension candidates. Maximal degree in co-relation 504. Up to 86 conditions per place. [2024-11-28 04:19:48,676 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 6 changer transitions 1/42 dead transitions. [2024-11-28 04:19:48,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 42 transitions, 187 flow [2024-11-28 04:19:48,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:19:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:19:48,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-11-28 04:19:48,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2024-11-28 04:19:48,679 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 89 flow. Second operand 5 states and 100 transitions. [2024-11-28 04:19:48,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 42 transitions, 187 flow [2024-11-28 04:19:48,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 173 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 04:19:48,684 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 101 flow [2024-11-28 04:19:48,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=101, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2024-11-28 04:19:48,686 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 2 predicate places. [2024-11-28 04:19:48,688 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 101 flow [2024-11-28 04:19:48,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-28 04:19:48,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:48,689 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:48,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:19:48,689 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:48,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash 586101003, now seen corresponding path program 1 times [2024-11-28 04:19:48,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:48,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505938897] [2024-11-28 04:19:48,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:19:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:19:49,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:49,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:49,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505938897] [2024-11-28 04:19:49,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505938897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:49,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:49,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:19:49,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406299994] [2024-11-28 04:19:49,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:49,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:19:49,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:49,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:19:49,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:19:49,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-28 04:19:49,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 101 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-28 04:19:49,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:49,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-28 04:19:49,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:49,611 INFO L124 PetriNetUnfolderBase]: 118/298 cut-off events. [2024-11-28 04:19:49,613 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-28 04:19:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 298 events. 118/298 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1228 event pairs, 31 based on Foata normal form. 4/295 useless extension candidates. Maximal degree in co-relation 653. Up to 133 conditions per place. [2024-11-28 04:19:49,615 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 20 selfloop transitions, 1 changer transitions 18/50 dead transitions. [2024-11-28 04:19:49,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 229 flow [2024-11-28 04:19:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:19:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:19:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-28 04:19:49,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5045045045045045 [2024-11-28 04:19:49,620 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 101 flow. Second operand 6 states and 112 transitions. [2024-11-28 04:19:49,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 229 flow [2024-11-28 04:19:49,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 195 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-28 04:19:49,627 INFO L231 Difference]: Finished difference. Result has 45 places, 29 transitions, 84 flow [2024-11-28 04:19:49,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2024-11-28 04:19:49,628 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 5 predicate places. [2024-11-28 04:19:49,628 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 29 transitions, 84 flow [2024-11-28 04:19:49,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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) [2024-11-28 04:19:49,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:49,628 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:49,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:19:49,628 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:49,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:49,629 INFO L85 PathProgramCache]: Analyzing trace with hash -623588201, now seen corresponding path program 2 times [2024-11-28 04:19:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:49,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541992276] [2024-11-28 04:19:49,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:19:49,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:49,727 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:19:49,728 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:19:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:19:52,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:19:52,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541992276] [2024-11-28 04:19:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541992276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:19:52,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:19:52,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:19:52,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166227801] [2024-11-28 04:19:52,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:19:52,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:19:52,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:19:52,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:19:52,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:19:52,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-28 04:19:52,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 29 transitions, 84 flow. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 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) [2024-11-28 04:19:52,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:19:52,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-28 04:19:52,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:19:53,491 INFO L124 PetriNetUnfolderBase]: 84/218 cut-off events. [2024-11-28 04:19:53,492 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:19:53,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 218 events. 84/218 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 834 event pairs, 14 based on Foata normal form. 4/213 useless extension candidates. Maximal degree in co-relation 437. Up to 36 conditions per place. [2024-11-28 04:19:53,494 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 17 selfloop transitions, 5 changer transitions 18/53 dead transitions. [2024-11-28 04:19:53,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 216 flow [2024-11-28 04:19:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:19:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:19:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 181 transitions. [2024-11-28 04:19:53,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4891891891891892 [2024-11-28 04:19:53,497 INFO L175 Difference]: Start difference. First operand has 45 places, 29 transitions, 84 flow. Second operand 10 states and 181 transitions. [2024-11-28 04:19:53,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 216 flow [2024-11-28 04:19:53,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 205 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 04:19:53,501 INFO L231 Difference]: Finished difference. Result has 51 places, 29 transitions, 97 flow [2024-11-28 04:19:53,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=97, PETRI_PLACES=51, PETRI_TRANSITIONS=29} [2024-11-28 04:19:53,502 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-11-28 04:19:53,502 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 29 transitions, 97 flow [2024-11-28 04:19:53,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 9 states have internal predecessors, (140), 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) [2024-11-28 04:19:53,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:19:53,503 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:19:53,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:19:53,504 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:19:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:19:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1957518365, now seen corresponding path program 3 times [2024-11-28 04:19:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:19:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066091893] [2024-11-28 04:19:53,505 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:19:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:19:53,668 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:19:53,668 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 04:19:53,668 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:19:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:19:53,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:19:53,884 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:19:53,885 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-28 04:19:53,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-28 04:19:53,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-28 04:19:53,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-28 04:19:53,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-28 04:19:53,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-28 04:19:53,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:19:53,896 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2024-11-28 04:19:54,020 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:19:54,020 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:19:54,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:19:54 BasicIcfg [2024-11-28 04:19:54,031 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:19:54,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:19:54,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:19:54,033 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:19:54,034 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:19:44" (3/4) ... [2024-11-28 04:19:54,039 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:19:54,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:19:54,041 INFO L158 Benchmark]: Toolchain (without parser) took 11735.81ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 91.4MB in the beginning and 258.1MB in the end (delta: -166.7MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-28 04:19:54,042 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:19:54,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.84ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 67.8MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:19:54,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.28ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:19:54,044 INFO L158 Benchmark]: Boogie Preprocessor took 85.24ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:19:54,044 INFO L158 Benchmark]: RCFGBuilder took 1137.44ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 64.4MB in the end (delta: -2.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-28 04:19:54,045 INFO L158 Benchmark]: TraceAbstraction took 9821.69ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 63.8MB in the beginning and 258.1MB in the end (delta: -194.3MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. [2024-11-28 04:19:54,048 INFO L158 Benchmark]: Witness Printer took 8.14ms. Allocated memory is still 293.6MB. Free memory was 258.1MB in the beginning and 258.1MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:19:54,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.4MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.84ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 67.8MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.28ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 85.24ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 62.0MB in the end (delta: 3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1137.44ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 64.4MB in the end (delta: -2.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9821.69ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 63.8MB in the beginning and 258.1MB in the end (delta: -194.3MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. * Witness Printer took 8.14ms. Allocated memory is still 293.6MB. Free memory was 258.1MB in the beginning and 258.1MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [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; [L823] 0 pthread_t t1761; [L824] FCALL, FORK 0 pthread_create(&t1761, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1761=-2, 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] [L825] 0 pthread_t t1762; [L826] FCALL, FORK 0 pthread_create(&t1762, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1761=-2, t1762=-1, 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$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L783] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L784] 2 y$flush_delayed = weak$$choice2 [L785] 2 y$mem_tmp = y [L786] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L787] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L788] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L789] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L790] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L791] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L792] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L793] 2 __unbuffered_p1_EAX = y [L794] 2 y = y$flush_delayed ? y$mem_tmp : y [L795] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L798] 2 __unbuffered_p1_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L741] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 y$flush_delayed = weak$$choice2 [L749] 1 y$mem_tmp = y [L750] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L751] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L752] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L753] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L754] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L756] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = y [L758] 1 y = y$flush_delayed ? y$mem_tmp : y [L759] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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] [L801] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L802] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L803] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L804] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L805] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L808] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L828] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=-2, t1762=-1, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L830] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L830] RET 0 assume_abort_if_not(main$tmp_guard0) [L832] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L833] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L834] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L835] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L836] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=-2, t1762=-1, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L839] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=-2, t1762=-1, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "rfi010.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - 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: 821]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 824]: 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: 826]: 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, 55 locations, 6 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: 9.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 550 IncrementalHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 2 mSDtfsCounter, 550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=5, InterpolantAutomatonStates: 39, 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, 0.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 611 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:19:54,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB --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 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:19:57,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:19:57,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:19:57,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:19:57,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:19:57,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:19:57,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:19:57,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:19:57,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:19:57,617 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:19:57,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:19:57,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:19:57,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:19:57,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:19:57,618 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:19:57,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:19:57,619 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:19:57,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:19:57,621 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:19:57,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:19:57,621 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:19:57,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:57,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:19:57,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:57,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:57,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:19:57,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:19:57,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:19:57,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:19:57,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:19:57,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:19:57,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:19:57,623 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:19:57,623 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:19:57,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:19:57,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:19:57,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:19:57,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:19:57,624 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2024-11-28 04:19:57,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:19:58,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:19:58,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:19:58,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:19:58,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:19:58,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 04:20:01,669 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/d0ea21d66/a052c9ef96e447c98d5fec7be2187259/FLAG7e757f194 [2024-11-28 04:20:02,111 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:20:02,112 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/sv-benchmarks/c/pthread-wmm/rfi010.i [2024-11-28 04:20:02,130 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/d0ea21d66/a052c9ef96e447c98d5fec7be2187259/FLAG7e757f194 [2024-11-28 04:20:02,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/data/d0ea21d66/a052c9ef96e447c98d5fec7be2187259 [2024-11-28 04:20:02,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:20:02,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:20:02,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:20:02,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:20:02,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:20:02,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:02,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545d0930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02, skipping insertion in model container [2024-11-28 04:20:02,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:02,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:20:02,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:20:02,737 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:20:02,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:20:02,931 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:20:02,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02 WrapperNode [2024-11-28 04:20:02,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:20:02,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:20:02,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:20:02,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:20:02,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:02,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,038 INFO L138 Inliner]: procedures = 175, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-28 04:20:03,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:20:03,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:20:03,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:20:03,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:20:03,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,111 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:20:03,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:20:03,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:20:03,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:20:03,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:20:03,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (1/1) ... [2024-11-28 04:20:03,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:20:03,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:03,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:20:03,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 04:20:03,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 04:20:03,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:20:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:20:03,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:20:03,269 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:20:03,484 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:20:03,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:20:04,116 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:20:04,118 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:20:04,634 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:20:04,637 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:20:04,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:20:04 BoogieIcfgContainer [2024-11-28 04:20:04,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:20:04,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:20:04,642 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:20:04,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:20:04,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:20:02" (1/3) ... [2024-11-28 04:20:04,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af00fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:20:04, skipping insertion in model container [2024-11-28 04:20:04,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:20:02" (2/3) ... [2024-11-28 04:20:04,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af00fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:20:04, skipping insertion in model container [2024-11-28 04:20:04,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:20:04" (3/3) ... [2024-11-28 04:20:04,657 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi010.i [2024-11-28 04:20:04,679 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:20:04,681 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi010.i that has 3 procedures, 36 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 04:20:04,681 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:20:04,778 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:20:04,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2024-11-28 04:20:04,868 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-28 04:20:04,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:20:04,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-28 04:20:04,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2024-11-28 04:20:04,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2024-11-28 04:20:04,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:20:04,904 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@29c95be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:20:04,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 04:20:04,911 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:20:04,912 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-28 04:20:04,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:20:04,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:04,913 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:20:04,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:04,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1595798429, now seen corresponding path program 1 times [2024-11-28 04:20:04,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:04,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065261973] [2024-11-28 04:20:04,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:04,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:04,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:04,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:04,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:20:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:05,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:20:05,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:05,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:05,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:05,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065261973] [2024-11-28 04:20:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065261973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:05,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:05,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:20:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904614673] [2024-11-28 04:20:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:05,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:20:05,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:05,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:20:05,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:20:05,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 37 [2024-11-28 04:20:05,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-28 04:20:05,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:05,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 37 [2024-11-28 04:20:05,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:05,703 INFO L124 PetriNetUnfolderBase]: 166/367 cut-off events. [2024-11-28 04:20:05,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:20:05,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 672 conditions, 367 events. 166/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2022 event pairs, 18 based on Foata normal form. 30/393 useless extension candidates. Maximal degree in co-relation 662. Up to 245 conditions per place. [2024-11-28 04:20:05,716 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 22 selfloop transitions, 2 changer transitions 2/40 dead transitions. [2024-11-28 04:20:05,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 138 flow [2024-11-28 04:20:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:20:05,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:20:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-28 04:20:05,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7117117117117117 [2024-11-28 04:20:05,738 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 79 transitions. [2024-11-28 04:20:05,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 138 flow [2024-11-28 04:20:05,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:20:05,753 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2024-11-28 04:20:05,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-28 04:20:05,761 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-28 04:20:05,761 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2024-11-28 04:20:05,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-28 04:20:05,762 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:05,763 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:05,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:20:05,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:05,964 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:05,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 222196739, now seen corresponding path program 1 times [2024-11-28 04:20:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248829] [2024-11-28 04:20:05,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:05,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:05,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:05,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:20:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:06,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:20:06,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:06,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:06,153 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:06,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248829] [2024-11-28 04:20:06,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:06,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:06,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:20:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065457819] [2024-11-28 04:20:06,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:06,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:20:06,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:06,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:20:06,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:20:06,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 37 [2024-11-28 04:20:06,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-28 04:20:06,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:06,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 37 [2024-11-28 04:20:06,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:06,318 INFO L124 PetriNetUnfolderBase]: 144/348 cut-off events. [2024-11-28 04:20:06,320 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-28 04:20:06,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 348 events. 144/348 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2015 event pairs, 144 based on Foata normal form. 15/356 useless extension candidates. Maximal degree in co-relation 627. Up to 256 conditions per place. [2024-11-28 04:20:06,328 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 14 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2024-11-28 04:20:06,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 98 flow [2024-11-28 04:20:06,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:20:06,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:20:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-28 04:20:06,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5585585585585585 [2024-11-28 04:20:06,333 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 3 states and 62 transitions. [2024-11-28 04:20:06,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 98 flow [2024-11-28 04:20:06,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:20:06,335 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2024-11-28 04:20:06,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-28 04:20:06,338 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-28 04:20:06,338 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2024-11-28 04:20:06,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-11-28 04:20:06,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:06,339 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:06,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:20:06,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:06,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:06,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 222196816, now seen corresponding path program 1 times [2024-11-28 04:20:06,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:06,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383168080] [2024-11-28 04:20:06,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:06,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:06,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:06,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:06,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:20:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:06,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:20:06,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:06,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:06,759 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:06,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383168080] [2024-11-28 04:20:06,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383168080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:06,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:06,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:20:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297000851] [2024-11-28 04:20:06,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:06,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:20:06,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:06,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:20:06,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:20:06,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-28 04:20:06,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-28 04:20:06,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:06,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-28 04:20:06,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:07,031 INFO L124 PetriNetUnfolderBase]: 191/428 cut-off events. [2024-11-28 04:20:07,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:20:07,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 428 events. 191/428 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2136 event pairs, 31 based on Foata normal form. 24/449 useless extension candidates. Maximal degree in co-relation 788. Up to 191 conditions per place. [2024-11-28 04:20:07,036 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 31 selfloop transitions, 4 changer transitions 1/46 dead transitions. [2024-11-28 04:20:07,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 172 flow [2024-11-28 04:20:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:20:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:20:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-28 04:20:07,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6081081081081081 [2024-11-28 04:20:07,039 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 4 states and 90 transitions. [2024-11-28 04:20:07,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 172 flow [2024-11-28 04:20:07,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:20:07,042 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 87 flow [2024-11-28 04:20:07,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-11-28 04:20:07,044 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-28 04:20:07,044 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 87 flow [2024-11-28 04:20:07,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-28 04:20:07,044 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:07,045 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:07,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:20:07,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:07,246 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:07,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2061408367, now seen corresponding path program 1 times [2024-11-28 04:20:07,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:07,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977650594] [2024-11-28 04:20:07,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:07,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:07,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:07,250 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:07,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:20:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:07,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:20:07,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:07,463 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:07,464 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977650594] [2024-11-28 04:20:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977650594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:07,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:07,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:20:07,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596367627] [2024-11-28 04:20:07,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:07,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:20:07,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:07,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:20:07,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:20:07,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-28 04:20:07,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-28 04:20:07,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:07,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-28 04:20:07,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:07,717 INFO L124 PetriNetUnfolderBase]: 97/216 cut-off events. [2024-11-28 04:20:07,717 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-28 04:20:07,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 216 events. 97/216 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 753 event pairs, 21 based on Foata normal form. 16/229 useless extension candidates. Maximal degree in co-relation 494. Up to 86 conditions per place. [2024-11-28 04:20:07,720 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 26 selfloop transitions, 6 changer transitions 1/43 dead transitions. [2024-11-28 04:20:07,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 184 flow [2024-11-28 04:20:07,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:20:07,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:20:07,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-11-28 04:20:07,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2024-11-28 04:20:07,723 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 87 flow. Second operand 5 states and 100 transitions. [2024-11-28 04:20:07,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 184 flow [2024-11-28 04:20:07,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 175 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 04:20:07,726 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 103 flow [2024-11-28 04:20:07,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-28 04:20:07,728 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2024-11-28 04:20:07,728 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 103 flow [2024-11-28 04:20:07,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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) [2024-11-28 04:20:07,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:07,729 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:07,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:07,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:07,933 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:07,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:07,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1210108125, now seen corresponding path program 1 times [2024-11-28 04:20:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986788721] [2024-11-28 04:20:07,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:20:07,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:07,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:07,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:07,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:20:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:20:08,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:20:08,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:08,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:08,408 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:08,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986788721] [2024-11-28 04:20:08,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986788721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:08,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:08,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:20:08,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627993147] [2024-11-28 04:20:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:08,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:20:08,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:08,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:20:08,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:20:08,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-28 04:20:08,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 103 flow. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2024-11-28 04:20:08,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:08,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-28 04:20:08,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:09,079 INFO L124 PetriNetUnfolderBase]: 166/365 cut-off events. [2024-11-28 04:20:09,082 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2024-11-28 04:20:09,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 365 events. 166/365 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1421 event pairs, 36 based on Foata normal form. 4/369 useless extension candidates. Maximal degree in co-relation 864. Up to 149 conditions per place. [2024-11-28 04:20:09,086 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 34 selfloop transitions, 5 changer transitions 24/70 dead transitions. [2024-11-28 04:20:09,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 353 flow [2024-11-28 04:20:09,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:20:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:20:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 154 transitions. [2024-11-28 04:20:09,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4624624624624625 [2024-11-28 04:20:09,095 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 103 flow. Second operand 9 states and 154 transitions. [2024-11-28 04:20:09,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 353 flow [2024-11-28 04:20:09,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 70 transitions, 296 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-28 04:20:09,102 INFO L231 Difference]: Finished difference. Result has 51 places, 32 transitions, 109 flow [2024-11-28 04:20:09,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=109, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2024-11-28 04:20:09,105 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-11-28 04:20:09,108 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 109 flow [2024-11-28 04:20:09,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2024-11-28 04:20:09,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:09,109 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:09,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:09,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:09,309 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash -245692787, now seen corresponding path program 2 times [2024-11-28 04:20:09,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:09,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623027206] [2024-11-28 04:20:09,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:20:09,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:09,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:09,314 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:09,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:20:09,442 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:20:09,442 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:09,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:20:09,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:11,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:11,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623027206] [2024-11-28 04:20:11,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623027206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:11,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:11,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:20:11,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530192670] [2024-11-28 04:20:11,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:11,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:20:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:11,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:20:11,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:20:11,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-28 04:20:11,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 109 flow. Second operand has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 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) [2024-11-28 04:20:11,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:11,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-28 04:20:11,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:12,056 INFO L124 PetriNetUnfolderBase]: 125/284 cut-off events. [2024-11-28 04:20:12,057 INFO L125 PetriNetUnfolderBase]: For 87/89 co-relation queries the response was YES. [2024-11-28 04:20:12,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 284 events. 125/284 cut-off events. For 87/89 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1026 event pairs, 37 based on Foata normal form. 6/287 useless extension candidates. Maximal degree in co-relation 662. Up to 137 conditions per place. [2024-11-28 04:20:12,063 INFO L140 encePairwiseOnDemand]: 26/37 looper letters, 27 selfloop transitions, 10 changer transitions 20/67 dead transitions. [2024-11-28 04:20:12,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 67 transitions, 331 flow [2024-11-28 04:20:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:20:12,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 04:20:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2024-11-28 04:20:12,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4643734643734644 [2024-11-28 04:20:12,065 INFO L175 Difference]: Start difference. First operand has 51 places, 32 transitions, 109 flow. Second operand 11 states and 189 transitions. [2024-11-28 04:20:12,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 67 transitions, 331 flow [2024-11-28 04:20:12,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 67 transitions, 299 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-28 04:20:12,071 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 163 flow [2024-11-28 04:20:12,071 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=163, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-28 04:20:12,072 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2024-11-28 04:20:12,072 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 163 flow [2024-11-28 04:20:12,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.545454545454545) internal successors, (149), 11 states have internal predecessors, (149), 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) [2024-11-28 04:20:12,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:12,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:12,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:20:12,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:12,274 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:12,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:12,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1988901211, now seen corresponding path program 3 times [2024-11-28 04:20:12,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:12,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89789771] [2024-11-28 04:20:12,275 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:20:12,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:12,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:12,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:12,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:20:12,393 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:20:12,393 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:20:12,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:20:12,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:20:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:20:12,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:20:12,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:20:12,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89789771] [2024-11-28 04:20:12,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89789771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:20:12,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:20:12,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:20:12,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447782024] [2024-11-28 04:20:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:20:12,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:20:12,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:20:12,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:20:12,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:20:12,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2024-11-28 04:20:12,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 163 flow. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2024-11-28 04:20:12,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:20:12,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2024-11-28 04:20:12,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:20:13,051 INFO L124 PetriNetUnfolderBase]: 140/321 cut-off events. [2024-11-28 04:20:13,051 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2024-11-28 04:20:13,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 321 events. 140/321 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1175 event pairs, 32 based on Foata normal form. 4/325 useless extension candidates. Maximal degree in co-relation 824. Up to 138 conditions per place. [2024-11-28 04:20:13,053 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 26 selfloop transitions, 7 changer transitions 27/67 dead transitions. [2024-11-28 04:20:13,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 67 transitions, 372 flow [2024-11-28 04:20:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:20:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:20:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 148 transitions. [2024-11-28 04:20:13,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-28 04:20:13,055 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 163 flow. Second operand 9 states and 148 transitions. [2024-11-28 04:20:13,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 67 transitions, 372 flow [2024-11-28 04:20:13,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 67 transitions, 351 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-28 04:20:13,058 INFO L231 Difference]: Finished difference. Result has 61 places, 34 transitions, 154 flow [2024-11-28 04:20:13,059 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=154, PETRI_PLACES=61, PETRI_TRANSITIONS=34} [2024-11-28 04:20:13,059 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 21 predicate places. [2024-11-28 04:20:13,059 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 34 transitions, 154 flow [2024-11-28 04:20:13,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 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) [2024-11-28 04:20:13,060 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:20:13,060 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:20:13,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:20:13,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:13,265 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-28 04:20:13,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:20:13,266 INFO L85 PathProgramCache]: Analyzing trace with hash -358089681, now seen corresponding path program 4 times [2024-11-28 04:20:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:20:13,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437531595] [2024-11-28 04:20:13,266 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:20:13,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:13,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:20:13,271 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:20:13,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:20:13,383 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:20:13,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 04:20:13,384 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:20:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:20:13,474 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 04:20:13,475 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:20:13,477 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-28 04:20:13,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-28 04:20:13,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-28 04:20:13,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-28 04:20:13,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-28 04:20:13,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-28 04:20:13,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:20:13,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:20:13,682 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-11-28 04:20:13,786 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:20:13,786 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:20:13,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:20:13 BasicIcfg [2024-11-28 04:20:13,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:20:13,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:20:13,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:20:13,801 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:20:13,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:20:04" (3/4) ... [2024-11-28 04:20:13,804 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:20:13,805 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:20:13,806 INFO L158 Benchmark]: Toolchain (without parser) took 11652.55ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 83.1MB in the beginning and 76.9MB in the end (delta: 6.2MB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. [2024-11-28 04:20:13,807 INFO L158 Benchmark]: CDTParser took 1.92ms. Allocated memory is still 83.9MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:20:13,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.35ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 59.6MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:20:13,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.11ms. Allocated memory is still 109.1MB. Free memory was 59.6MB in the beginning and 57.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:20:13,808 INFO L158 Benchmark]: Boogie Preprocessor took 118.59ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:20:13,809 INFO L158 Benchmark]: RCFGBuilder took 1476.12ms. Allocated memory is still 109.1MB. Free memory was 54.2MB in the beginning and 81.2MB in the end (delta: -27.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-28 04:20:13,810 INFO L158 Benchmark]: TraceAbstraction took 9158.34ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 80.5MB in the beginning and 77.0MB in the end (delta: 3.5MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. [2024-11-28 04:20:13,811 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 201.3MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 60.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:20:13,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.92ms. Allocated memory is still 83.9MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.35ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 59.6MB in the end (delta: 23.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.11ms. Allocated memory is still 109.1MB. Free memory was 59.6MB in the beginning and 57.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 118.59ms. Allocated memory is still 109.1MB. Free memory was 57.3MB in the beginning and 54.2MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1476.12ms. Allocated memory is still 109.1MB. Free memory was 54.2MB in the beginning and 81.2MB in the end (delta: -27.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9158.34ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 80.5MB in the beginning and 77.0MB in the end (delta: 3.5MB). Peak memory consumption was 94.9MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 201.3MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 60.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [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; [L823] 0 pthread_t t1761; [L824] FCALL, FORK 0 pthread_create(&t1761, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1761=510, 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] [L825] 0 pthread_t t1762; [L826] FCALL, FORK 0 pthread_create(&t1762, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1761=510, t1762=511, 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$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$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$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L783] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L784] 2 y$flush_delayed = weak$$choice2 [L785] 2 y$mem_tmp = y [L786] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L787] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L788] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L789] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L790] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L791] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L792] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L793] 2 __unbuffered_p1_EAX = y [L794] 2 y = y$flush_delayed ? y$mem_tmp : y [L795] 2 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L798] 2 __unbuffered_p1_EBX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L741] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 y$flush_delayed = weak$$choice2 [L749] 1 y$mem_tmp = y [L750] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L751] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L752] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L753] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L754] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L756] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = y [L758] 1 y = y$flush_delayed ? y$mem_tmp : y [L759] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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] [L801] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L802] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L803] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L804] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L805] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L808] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L828] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=510, t1762=511, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L830] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L830] RET 0 assume_abort_if_not(main$tmp_guard0) [L832] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L833] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L834] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L835] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L836] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=510, t1762=511, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L839] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761=510, t1762=511, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] [L18] 0 __assert_fail ("0", "rfi010.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, 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=0, y$w_buff1=0, y$w_buff1_used=0, y=1] - 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: 821]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 826]: 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: 824]: 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, 55 locations, 6 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: 8.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 177 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1118 IncrementalHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 5 mSDtfsCounter, 1118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=6, InterpolantAutomatonStates: 44, 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: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 677 SizeOfPredicates, 27 NumberOfNonLiveVariables, 639 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:20:13,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39fc5b06-70b8-4135-a5ce-15468cfed106/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample