./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:37:28,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:37:28,999 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 02:37:29,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:37:29,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:37:29,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:37:29,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:37:29,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:37:29,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:37:29,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:37:29,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:37:29,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:37:29,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:37:29,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:37:29,057 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:37:29,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:37:29,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:37:29,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:37:29,060 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:37:29,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:37:29,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:37:29,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:37:29,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:37:29,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:37:29,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:37:29,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:37:29,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:37:29,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:37:29,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:37:29,063 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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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 -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2024-11-28 02:37:29,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:37:29,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:37:29,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:37:29,407 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:37:29,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:37:29,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-28 02:37:32,473 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/1f3e56436/48f7a627f0a949a0b1e082cd570e35de/FLAG5a6edc5ea [2024-11-28 02:37:32,859 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:37:32,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-28 02:37:32,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/1f3e56436/48f7a627f0a949a0b1e082cd570e35de/FLAG5a6edc5ea [2024-11-28 02:37:32,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/1f3e56436/48f7a627f0a949a0b1e082cd570e35de [2024-11-28 02:37:32,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:37:32,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:37:32,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:37:32,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:37:32,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:37:32,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:32" (1/1) ... [2024-11-28 02:37:32,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5409c343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:32, skipping insertion in model container [2024-11-28 02:37:32,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:37:32" (1/1) ... [2024-11-28 02:37:32,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:37:33,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:37:33,601 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:37:33,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:37:33,760 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:37:33,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33 WrapperNode [2024-11-28 02:37:33,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:37:33,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:37:33,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:37:33,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:37:33,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,834 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 188 [2024-11-28 02:37:33,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:37:33,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:37:33,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:37:33,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:37:33,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,855 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,883 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [16, 2]. 89 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [1, 2]. The 5 writes are split as follows [5, 0]. [2024-11-28 02:37:33,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,911 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:37:33,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:37:33,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:37:33,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:37:33,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (1/1) ... [2024-11-28 02:37:33,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:37:33,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:37:33,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:37:33,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:37:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:37:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:37:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:37:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:37:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:37:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:37:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:37:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:37:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:37:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:37:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 02:37:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 02:37:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 02:37:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 02:37:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:37:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:37:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:37:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:37:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:37:34,034 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 02:37:34,233 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:37:34,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:37:35,181 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:37:35,181 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:37:36,070 WARN L170 LargeBlockEncoding]: Complex 2:9 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-28 02:37:36,207 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:37:36,207 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:37:36,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:36 BoogieIcfgContainer [2024-11-28 02:37:36,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:37:36,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:37:36,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:37:36,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:37:36,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:37:32" (1/3) ... [2024-11-28 02:37:36,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8f3a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:36, skipping insertion in model container [2024-11-28 02:37:36,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:37:33" (2/3) ... [2024-11-28 02:37:36,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8f3a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:37:36, skipping insertion in model container [2024-11-28 02:37:36,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:36" (3/3) ... [2024-11-28 02:37:36,225 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-11-28 02:37:36,250 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:37:36,257 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_power.opt.i that has 5 procedures, 82 locations, 1 initial locations, 0 loop locations, and 33 error locations. [2024-11-28 02:37:36,258 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:37:36,634 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:37:36,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 200 flow [2024-11-28 02:37:36,799 INFO L124 PetriNetUnfolderBase]: 11/88 cut-off events. [2024-11-28 02:37:36,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:37:36,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 88 events. 11/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 310 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-11-28 02:37:36,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 200 flow [2024-11-28 02:37:36,821 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 188 flow [2024-11-28 02:37:36,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:37:36,857 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;@72a70d62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:37:36,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-28 02:37:36,876 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:37:36,877 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-28 02:37:36,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:37:36,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:36,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:36,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:36,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1228645842, now seen corresponding path program 1 times [2024-11-28 02:37:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:36,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663285151] [2024-11-28 02:37:36,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:36,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:37,224 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 02:37:37,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:37,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663285151] [2024-11-28 02:37:37,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663285151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:37,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:37,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:37,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511520521] [2024-11-28 02:37:37,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:37,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:37:37,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:37,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:37:37,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:37:37,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:37,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 02:37:37,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:37,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:37,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:42,705 INFO L124 PetriNetUnfolderBase]: 15387/22619 cut-off events. [2024-11-28 02:37:42,706 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-28 02:37:42,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43583 conditions, 22619 events. 15387/22619 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 2285. Compared 194854 event pairs, 14847 based on Foata normal form. 720/14257 useless extension candidates. Maximal degree in co-relation 43571. Up to 20873 conditions per place. [2024-11-28 02:37:43,082 INFO L140 encePairwiseOnDemand]: 68/92 looper letters, 42 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2024-11-28 02:37:43,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 63 transitions, 222 flow [2024-11-28 02:37:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:37:43,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:37:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2024-11-28 02:37:43,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-28 02:37:43,101 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 188 flow. Second operand 2 states and 116 transitions. [2024-11-28 02:37:43,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 63 transitions, 222 flow [2024-11-28 02:37:43,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 63 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:37:43,115 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 134 flow [2024-11-28 02:37:43,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2024-11-28 02:37:43,124 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -18 predicate places. [2024-11-28 02:37:43,124 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 134 flow [2024-11-28 02:37:43,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 02:37:43,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:43,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:43,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:37:43,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:43,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1840725533, now seen corresponding path program 1 times [2024-11-28 02:37:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:43,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276243441] [2024-11-28 02:37:43,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:43,637 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 02:37:43,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:43,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276243441] [2024-11-28 02:37:43,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276243441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:43,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:43,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:43,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292392308] [2024-11-28 02:37:43,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:43,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:43,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:43,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:43,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:43,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:43,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:37:43,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:43,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:43,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:47,895 INFO L124 PetriNetUnfolderBase]: 21335/30947 cut-off events. [2024-11-28 02:37:47,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:37:47,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60180 conditions, 30947 events. 21335/30947 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3284. Compared 270957 event pairs, 6803 based on Foata normal form. 0/18585 useless extension candidates. Maximal degree in co-relation 60177. Up to 16269 conditions per place. [2024-11-28 02:37:48,115 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 71 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-11-28 02:37:48,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 95 transitions, 348 flow [2024-11-28 02:37:48,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:37:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-28 02:37:48,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5471014492753623 [2024-11-28 02:37:48,118 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 134 flow. Second operand 3 states and 151 transitions. [2024-11-28 02:37:48,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 95 transitions, 348 flow [2024-11-28 02:37:48,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 95 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:37:48,121 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 150 flow [2024-11-28 02:37:48,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-11-28 02:37:48,124 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -15 predicate places. [2024-11-28 02:37:48,125 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 150 flow [2024-11-28 02:37:48,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:37:48,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:48,126 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:48,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:37:48,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:48,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1228645859, now seen corresponding path program 1 times [2024-11-28 02:37:48,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:48,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131689570] [2024-11-28 02:37:48,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:48,327 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 02:37:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:48,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131689570] [2024-11-28 02:37:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131689570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:48,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:48,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767152082] [2024-11-28 02:37:48,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:48,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:48,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:48,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:48,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:48,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:48,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:48,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:48,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:48,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:50,639 INFO L124 PetriNetUnfolderBase]: 9347/14219 cut-off events. [2024-11-28 02:37:50,640 INFO L125 PetriNetUnfolderBase]: For 2200/2200 co-relation queries the response was YES. [2024-11-28 02:37:50,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28756 conditions, 14219 events. 9347/14219 cut-off events. For 2200/2200 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 120992 event pairs, 9087 based on Foata normal form. 0/10655 useless extension candidates. Maximal degree in co-relation 28751. Up to 12892 conditions per place. [2024-11-28 02:37:50,758 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 34 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2024-11-28 02:37:50,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 56 transitions, 206 flow [2024-11-28 02:37:50,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:37:50,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-28 02:37:50,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375 [2024-11-28 02:37:50,761 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 150 flow. Second operand 3 states and 116 transitions. [2024-11-28 02:37:50,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 56 transitions, 206 flow [2024-11-28 02:37:50,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:37:50,765 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 132 flow [2024-11-28 02:37:50,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-28 02:37:50,767 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -22 predicate places. [2024-11-28 02:37:50,767 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 132 flow [2024-11-28 02:37:50,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:50,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:50,767 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:50,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:37:50,768 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:50,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1228645858, now seen corresponding path program 1 times [2024-11-28 02:37:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:50,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236116461] [2024-11-28 02:37:50,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:50,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:50,972 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 02:37:50,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:50,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236116461] [2024-11-28 02:37:50,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236116461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:50,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:50,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:50,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963460450] [2024-11-28 02:37:50,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:50,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:50,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:50,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:50,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:50,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:50,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:50,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:50,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:50,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:52,105 INFO L124 PetriNetUnfolderBase]: 2783/4499 cut-off events. [2024-11-28 02:37:52,105 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-28 02:37:52,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8972 conditions, 4499 events. 2783/4499 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 34856 event pairs, 2651 based on Foata normal form. 168/4279 useless extension candidates. Maximal degree in co-relation 8967. Up to 3928 conditions per place. [2024-11-28 02:37:52,123 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 26 selfloop transitions, 1 changer transitions 1/49 dead transitions. [2024-11-28 02:37:52,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 49 transitions, 174 flow [2024-11-28 02:37:52,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:37:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-28 02:37:52,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39492753623188404 [2024-11-28 02:37:52,125 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 132 flow. Second operand 3 states and 109 transitions. [2024-11-28 02:37:52,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 49 transitions, 174 flow [2024-11-28 02:37:52,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:37:52,128 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 117 flow [2024-11-28 02:37:52,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2024-11-28 02:37:52,129 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -28 predicate places. [2024-11-28 02:37:52,130 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 117 flow [2024-11-28 02:37:52,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:37:52,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:52,130 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:52,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:37:52,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:52,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:52,131 INFO L85 PathProgramCache]: Analyzing trace with hash -914883499, now seen corresponding path program 1 times [2024-11-28 02:37:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:52,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840037768] [2024-11-28 02:37:52,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:52,311 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 02:37:52,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:52,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840037768] [2024-11-28 02:37:52,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840037768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:52,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:52,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:52,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110191992] [2024-11-28 02:37:52,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:52,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:52,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:52,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:52,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:52,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:52,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:37:52,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:52,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:52,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:53,044 INFO L124 PetriNetUnfolderBase]: 2415/3999 cut-off events. [2024-11-28 02:37:53,045 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-28 02:37:53,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7865 conditions, 3999 events. 2415/3999 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 30739 event pairs, 387 based on Foata normal form. 0/3703 useless extension candidates. Maximal degree in co-relation 7860. Up to 2981 conditions per place. [2024-11-28 02:37:53,080 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 35 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2024-11-28 02:37:53,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 221 flow [2024-11-28 02:37:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:53,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:37:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-28 02:37:53,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-28 02:37:53,083 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 117 flow. Second operand 3 states and 115 transitions. [2024-11-28 02:37:53,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 221 flow [2024-11-28 02:37:53,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:37:53,087 INFO L231 Difference]: Finished difference. Result has 63 places, 48 transitions, 132 flow [2024-11-28 02:37:53,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=63, PETRI_TRANSITIONS=48} [2024-11-28 02:37:53,088 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -27 predicate places. [2024-11-28 02:37:53,088 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 48 transitions, 132 flow [2024-11-28 02:37:53,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:37:53,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:53,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:53,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:37:53,089 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:53,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1265355300, now seen corresponding path program 1 times [2024-11-28 02:37:53,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:53,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245871297] [2024-11-28 02:37:53,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:53,225 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 02:37:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:53,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245871297] [2024-11-28 02:37:53,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245871297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:53,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:53,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:53,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015050395] [2024-11-28 02:37:53,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:53,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:37:53,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:53,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:37:53,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:37:53,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:53,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 48 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:37:53,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:53,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:53,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:53,884 INFO L124 PetriNetUnfolderBase]: 2215/3715 cut-off events. [2024-11-28 02:37:53,884 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-28 02:37:53,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7819 conditions, 3715 events. 2215/3715 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 28401 event pairs, 331 based on Foata normal form. 0/3587 useless extension candidates. Maximal degree in co-relation 7813. Up to 2696 conditions per place. [2024-11-28 02:37:53,907 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 34 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-11-28 02:37:53,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 230 flow [2024-11-28 02:37:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:37:53,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-11-28 02:37:53,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-28 02:37:53,909 INFO L175 Difference]: Start difference. First operand has 63 places, 48 transitions, 132 flow. Second operand 4 states and 138 transitions. [2024-11-28 02:37:53,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 230 flow [2024-11-28 02:37:53,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:37:53,913 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 128 flow [2024-11-28 02:37:53,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-11-28 02:37:53,914 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -27 predicate places. [2024-11-28 02:37:53,914 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 128 flow [2024-11-28 02:37:53,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:37:53,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:53,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:53,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:37:53,915 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:53,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1265355301, now seen corresponding path program 1 times [2024-11-28 02:37:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738445271] [2024-11-28 02:37:53,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:54,385 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 02:37:54,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:54,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738445271] [2024-11-28 02:37:54,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738445271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:54,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:54,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:37:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302153590] [2024-11-28 02:37:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:54,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:37:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:54,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:37:54,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:37:54,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:37:54,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:37:54,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:54,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:37:54,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:55,373 INFO L124 PetriNetUnfolderBase]: 2015/3431 cut-off events. [2024-11-28 02:37:55,374 INFO L125 PetriNetUnfolderBase]: For 544/544 co-relation queries the response was YES. [2024-11-28 02:37:55,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7155 conditions, 3431 events. 2015/3431 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 26141 event pairs, 275 based on Foata normal form. 84/3387 useless extension candidates. Maximal degree in co-relation 7149. Up to 2412 conditions per place. [2024-11-28 02:37:55,408 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 33 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2024-11-28 02:37:55,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 224 flow [2024-11-28 02:37:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:37:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-28 02:37:55,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37228260869565216 [2024-11-28 02:37:55,410 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 128 flow. Second operand 4 states and 137 transitions. [2024-11-28 02:37:55,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 224 flow [2024-11-28 02:37:55,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:37:55,414 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 123 flow [2024-11-28 02:37:55,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2024-11-28 02:37:55,415 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -28 predicate places. [2024-11-28 02:37:55,415 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 123 flow [2024-11-28 02:37:55,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:37:55,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:55,416 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:55,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:37:55,416 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:55,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:55,417 INFO L85 PathProgramCache]: Analyzing trace with hash 460039367, now seen corresponding path program 1 times [2024-11-28 02:37:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459649631] [2024-11-28 02:37:55,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:55,522 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 02:37:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459649631] [2024-11-28 02:37:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459649631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:37:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474614755] [2024-11-28 02:37:55,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:37:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:55,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:37:55,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:37:55,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 92 [2024-11-28 02:37:55,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:37:55,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:55,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 92 [2024-11-28 02:37:55,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:56,492 INFO L124 PetriNetUnfolderBase]: 2015/3331 cut-off events. [2024-11-28 02:37:56,492 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2024-11-28 02:37:56,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 3331 events. 2015/3331 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 25164 event pairs, 1919 based on Foata normal form. 100/3279 useless extension candidates. Maximal degree in co-relation 7049. Up to 2860 conditions per place. [2024-11-28 02:37:56,505 INFO L140 encePairwiseOnDemand]: 90/92 looper letters, 23 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 02:37:56,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 45 transitions, 171 flow [2024-11-28 02:37:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:37:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:37:56,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-28 02:37:56,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35144927536231885 [2024-11-28 02:37:56,508 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 123 flow. Second operand 3 states and 97 transitions. [2024-11-28 02:37:56,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 45 transitions, 171 flow [2024-11-28 02:37:56,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 45 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:37:56,510 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 116 flow [2024-11-28 02:37:56,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2024-11-28 02:37:56,511 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2024-11-28 02:37:56,511 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 116 flow [2024-11-28 02:37:56,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:37:56,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:56,512 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:37:56,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:37:56,512 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:56,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:56,513 INFO L85 PathProgramCache]: Analyzing trace with hash 460041582, now seen corresponding path program 1 times [2024-11-28 02:37:56,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:56,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669271644] [2024-11-28 02:37:56,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:56,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:56,785 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 02:37:56,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:56,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669271644] [2024-11-28 02:37:56,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669271644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:56,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:56,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:37:56,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172472756] [2024-11-28 02:37:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:56,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:37:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:56,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:37:56,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:37:56,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:37:56,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:37:56,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:56,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:37:56,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:37:58,215 INFO L124 PetriNetUnfolderBase]: 9108/13548 cut-off events. [2024-11-28 02:37:58,215 INFO L125 PetriNetUnfolderBase]: For 791/791 co-relation queries the response was YES. [2024-11-28 02:37:58,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28641 conditions, 13548 events. 9108/13548 cut-off events. For 791/791 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 96787 event pairs, 1042 based on Foata normal form. 369/13591 useless extension candidates. Maximal degree in co-relation 28636. Up to 8437 conditions per place. [2024-11-28 02:37:58,284 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 54 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2024-11-28 02:37:58,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 336 flow [2024-11-28 02:37:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:37:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:37:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-11-28 02:37:58,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3804347826086957 [2024-11-28 02:37:58,287 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 116 flow. Second operand 4 states and 140 transitions. [2024-11-28 02:37:58,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 336 flow [2024-11-28 02:37:58,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 76 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:37:58,288 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 157 flow [2024-11-28 02:37:58,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2024-11-28 02:37:58,292 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -26 predicate places. [2024-11-28 02:37:58,293 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 157 flow [2024-11-28 02:37:58,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:37:58,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:37:58,293 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] [2024-11-28 02:37:58,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:37:58,293 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:37:58,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:37:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1778865695, now seen corresponding path program 1 times [2024-11-28 02:37:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:37:58,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367178581] [2024-11-28 02:37:58,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:37:58,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:37:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:37:58,534 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 02:37:58,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:37:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367178581] [2024-11-28 02:37:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367178581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:37:58,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:37:58,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:37:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213841288] [2024-11-28 02:37:58,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:37:58,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:37:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:37:58,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:37:58,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:37:58,546 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:37:58,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 02:37:58,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:37:58,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:37:58,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:00,023 INFO L124 PetriNetUnfolderBase]: 7554/11333 cut-off events. [2024-11-28 02:38:00,023 INFO L125 PetriNetUnfolderBase]: For 3577/3577 co-relation queries the response was YES. [2024-11-28 02:38:00,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27940 conditions, 11333 events. 7554/11333 cut-off events. For 3577/3577 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 77885 event pairs, 380 based on Foata normal form. 356/11425 useless extension candidates. Maximal degree in co-relation 27933. Up to 6433 conditions per place. [2024-11-28 02:38:00,078 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 69 selfloop transitions, 10 changer transitions 1/95 dead transitions. [2024-11-28 02:38:00,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 95 transitions, 482 flow [2024-11-28 02:38:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:38:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:38:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-11-28 02:38:00,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3869565217391304 [2024-11-28 02:38:00,080 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 157 flow. Second operand 5 states and 178 transitions. [2024-11-28 02:38:00,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 95 transitions, 482 flow [2024-11-28 02:38:00,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 471 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:00,085 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 209 flow [2024-11-28 02:38:00,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2024-11-28 02:38:00,086 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -22 predicate places. [2024-11-28 02:38:00,086 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 209 flow [2024-11-28 02:38:00,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 02:38:00,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:00,086 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, 1, 1] [2024-11-28 02:38:00,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:38:00,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:00,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 307361236, now seen corresponding path program 1 times [2024-11-28 02:38:00,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:00,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283562088] [2024-11-28 02:38:00,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:00,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:00,314 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 02:38:00,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:00,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283562088] [2024-11-28 02:38:00,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283562088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:00,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:00,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:00,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631548991] [2024-11-28 02:38:00,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:00,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:00,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:00,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:00,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:00,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 02:38:00,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:00,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:00,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:01,366 INFO L124 PetriNetUnfolderBase]: 4816/7263 cut-off events. [2024-11-28 02:38:01,366 INFO L125 PetriNetUnfolderBase]: For 5799/5799 co-relation queries the response was YES. [2024-11-28 02:38:01,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19792 conditions, 7263 events. 4816/7263 cut-off events. For 5799/5799 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 44856 event pairs, 142 based on Foata normal form. 284/7389 useless extension candidates. Maximal degree in co-relation 19784. Up to 2977 conditions per place. [2024-11-28 02:38:01,404 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 80 selfloop transitions, 14 changer transitions 1/110 dead transitions. [2024-11-28 02:38:01,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 110 transitions, 611 flow [2024-11-28 02:38:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 214 transitions. [2024-11-28 02:38:01,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38768115942028986 [2024-11-28 02:38:01,405 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 209 flow. Second operand 6 states and 214 transitions. [2024-11-28 02:38:01,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 110 transitions, 611 flow [2024-11-28 02:38:01,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 110 transitions, 581 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 02:38:01,422 INFO L231 Difference]: Finished difference. Result has 71 places, 56 transitions, 259 flow [2024-11-28 02:38:01,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=259, PETRI_PLACES=71, PETRI_TRANSITIONS=56} [2024-11-28 02:38:01,423 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -19 predicate places. [2024-11-28 02:38:01,423 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 56 transitions, 259 flow [2024-11-28 02:38:01,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 02:38:01,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:01,423 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:01,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:38:01,424 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:01,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash 867175000, now seen corresponding path program 1 times [2024-11-28 02:38:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:01,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150739604] [2024-11-28 02:38:01,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:01,796 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 02:38:01,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:01,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150739604] [2024-11-28 02:38:01,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150739604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:01,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:01,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:38:01,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974459388] [2024-11-28 02:38:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:01,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:38:01,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:01,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:38:01,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:38:01,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:01,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 56 transitions, 259 flow. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:38:01,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:01,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:01,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:02,540 INFO L124 PetriNetUnfolderBase]: 2764/4063 cut-off events. [2024-11-28 02:38:02,540 INFO L125 PetriNetUnfolderBase]: For 5907/5907 co-relation queries the response was YES. [2024-11-28 02:38:02,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12489 conditions, 4063 events. 2764/4063 cut-off events. For 5907/5907 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 21480 event pairs, 80 based on Foata normal form. 144/4113 useless extension candidates. Maximal degree in co-relation 12480. Up to 1296 conditions per place. [2024-11-28 02:38:02,559 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 72 selfloop transitions, 18 changer transitions 1/106 dead transitions. [2024-11-28 02:38:02,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 106 transitions, 595 flow [2024-11-28 02:38:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:38:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:38:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-11-28 02:38:02,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-28 02:38:02,561 INFO L175 Difference]: Start difference. First operand has 71 places, 56 transitions, 259 flow. Second operand 7 states and 230 transitions. [2024-11-28 02:38:02,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 106 transitions, 595 flow [2024-11-28 02:38:02,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 106 transitions, 549 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 02:38:02,596 INFO L231 Difference]: Finished difference. Result has 74 places, 56 transitions, 269 flow [2024-11-28 02:38:02,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=269, PETRI_PLACES=74, PETRI_TRANSITIONS=56} [2024-11-28 02:38:02,597 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -16 predicate places. [2024-11-28 02:38:02,597 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 56 transitions, 269 flow [2024-11-28 02:38:02,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:38:02,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:02,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:02,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:38:02,598 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:02,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:02,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1528451007, now seen corresponding path program 1 times [2024-11-28 02:38:02,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:02,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242611505] [2024-11-28 02:38:02,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:02,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:03,096 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 02:38:03,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:03,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242611505] [2024-11-28 02:38:03,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242611505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:03,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:03,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:03,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637272495] [2024-11-28 02:38:03,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:03,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:03,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:03,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:03,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:03,105 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-28 02:38:03,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 56 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:03,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:03,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-28 02:38:03,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:04,196 INFO L124 PetriNetUnfolderBase]: 3730/6423 cut-off events. [2024-11-28 02:38:04,197 INFO L125 PetriNetUnfolderBase]: For 4154/4391 co-relation queries the response was YES. [2024-11-28 02:38:04,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15939 conditions, 6423 events. 3730/6423 cut-off events. For 4154/4391 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 45382 event pairs, 1058 based on Foata normal form. 32/5904 useless extension candidates. Maximal degree in co-relation 15929. Up to 2083 conditions per place. [2024-11-28 02:38:04,231 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 53 selfloop transitions, 3 changer transitions 14/100 dead transitions. [2024-11-28 02:38:04,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 100 transitions, 545 flow [2024-11-28 02:38:04,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:04,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-28 02:38:04,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37318840579710144 [2024-11-28 02:38:04,233 INFO L175 Difference]: Start difference. First operand has 74 places, 56 transitions, 269 flow. Second operand 6 states and 206 transitions. [2024-11-28 02:38:04,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 100 transitions, 545 flow [2024-11-28 02:38:04,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 100 transitions, 439 flow, removed 22 selfloop flow, removed 10 redundant places. [2024-11-28 02:38:04,263 INFO L231 Difference]: Finished difference. Result has 72 places, 57 transitions, 191 flow [2024-11-28 02:38:04,263 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=72, PETRI_TRANSITIONS=57} [2024-11-28 02:38:04,264 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -18 predicate places. [2024-11-28 02:38:04,264 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 57 transitions, 191 flow [2024-11-28 02:38:04,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:04,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:04,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:04,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:38:04,264 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:04,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash -617510941, now seen corresponding path program 2 times [2024-11-28 02:38:04,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:04,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719266110] [2024-11-28 02:38:04,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:38:04,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:04,359 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:38:04,360 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:38:04,678 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 02:38:04,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:04,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719266110] [2024-11-28 02:38:04,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719266110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:04,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:04,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:04,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492899468] [2024-11-28 02:38:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:04,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:04,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:04,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:04,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-28 02:38:04,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 57 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:04,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:04,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-28 02:38:04,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:05,654 INFO L124 PetriNetUnfolderBase]: 5183/8862 cut-off events. [2024-11-28 02:38:05,655 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2024-11-28 02:38:05,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18390 conditions, 8862 events. 5183/8862 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 68620 event pairs, 1611 based on Foata normal form. 32/7924 useless extension candidates. Maximal degree in co-relation 18382. Up to 2659 conditions per place. [2024-11-28 02:38:05,702 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 38 selfloop transitions, 3 changer transitions 12/84 dead transitions. [2024-11-28 02:38:05,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 84 transitions, 359 flow [2024-11-28 02:38:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2024-11-28 02:38:05,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34601449275362317 [2024-11-28 02:38:05,704 INFO L175 Difference]: Start difference. First operand has 72 places, 57 transitions, 191 flow. Second operand 6 states and 191 transitions. [2024-11-28 02:38:05,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 84 transitions, 359 flow [2024-11-28 02:38:05,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 349 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-28 02:38:05,713 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 201 flow [2024-11-28 02:38:05,713 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=201, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2024-11-28 02:38:05,713 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -16 predicate places. [2024-11-28 02:38:05,714 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 201 flow [2024-11-28 02:38:05,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:05,714 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:05,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:38:05,714 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1071829163, now seen corresponding path program 3 times [2024-11-28 02:38:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458017538] [2024-11-28 02:38:05,715 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:38:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:05,831 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:38:05,831 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:38:06,113 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 02:38:06,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458017538] [2024-11-28 02:38:06,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458017538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:06,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:06,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:06,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010285182] [2024-11-28 02:38:06,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:06,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:06,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:06,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:06,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:06,127 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-28 02:38:06,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:06,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:06,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-28 02:38:06,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:07,982 INFO L124 PetriNetUnfolderBase]: 9548/16219 cut-off events. [2024-11-28 02:38:07,982 INFO L125 PetriNetUnfolderBase]: For 614/614 co-relation queries the response was YES. [2024-11-28 02:38:08,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33703 conditions, 16219 events. 9548/16219 cut-off events. For 614/614 co-relation queries the response was YES. Maximal size of possible extension queue 1230. Compared 135385 event pairs, 1736 based on Foata normal form. 32/14608 useless extension candidates. Maximal degree in co-relation 33694. Up to 5916 conditions per place. [2024-11-28 02:38:08,039 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 31 selfloop transitions, 3 changer transitions 32/98 dead transitions. [2024-11-28 02:38:08,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 453 flow [2024-11-28 02:38:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-11-28 02:38:08,041 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36594202898550726 [2024-11-28 02:38:08,041 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 201 flow. Second operand 6 states and 202 transitions. [2024-11-28 02:38:08,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 453 flow [2024-11-28 02:38:08,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 98 transitions, 443 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-28 02:38:08,048 INFO L231 Difference]: Finished difference. Result has 76 places, 57 transitions, 199 flow [2024-11-28 02:38:08,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=76, PETRI_TRANSITIONS=57} [2024-11-28 02:38:08,049 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -14 predicate places. [2024-11-28 02:38:08,049 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 57 transitions, 199 flow [2024-11-28 02:38:08,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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 02:38:08,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:08,050 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:08,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:38:08,050 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:08,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1255460229, now seen corresponding path program 4 times [2024-11-28 02:38:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:08,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494162021] [2024-11-28 02:38:08,051 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:38:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:08,213 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:38:08,213 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 02:38:08,214 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:38:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:38:08,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:38:08,385 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:38:08,387 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (61 of 62 remaining) [2024-11-28 02:38:08,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (60 of 62 remaining) [2024-11-28 02:38:08,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 62 remaining) [2024-11-28 02:38:08,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 62 remaining) [2024-11-28 02:38:08,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 62 remaining) [2024-11-28 02:38:08,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 62 remaining) [2024-11-28 02:38:08,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 62 remaining) [2024-11-28 02:38:08,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (29 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 62 remaining) [2024-11-28 02:38:08,396 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 62 remaining) [2024-11-28 02:38:08,397 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 62 remaining) [2024-11-28 02:38:08,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 62 remaining) [2024-11-28 02:38:08,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 62 remaining) [2024-11-28 02:38:08,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 62 remaining) [2024-11-28 02:38:08,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:38:08,398 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:08,586 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:38:08,586 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:38:08,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:38:08 BasicIcfg [2024-11-28 02:38:08,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:38:08,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:38:08,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:38:08,598 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:38:08,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:37:36" (3/4) ... [2024-11-28 02:38:08,601 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:38:08,602 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:38:08,603 INFO L158 Benchmark]: Toolchain (without parser) took 35682.10ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 115.9MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 583.4MB. Max. memory is 16.1GB. [2024-11-28 02:38:08,604 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:08,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 837.42ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 91.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:38:08,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.33ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 88.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:08,606 INFO L158 Benchmark]: Boogie Preprocessor took 98.01ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 84.6MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:38:08,606 INFO L158 Benchmark]: RCFGBuilder took 2275.91ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 64.5MB in the end (delta: 19.8MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2024-11-28 02:38:08,607 INFO L158 Benchmark]: TraceAbstraction took 32385.05ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 63.7MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 532.2MB. Max. memory is 16.1GB. [2024-11-28 02:38:08,607 INFO L158 Benchmark]: Witness Printer took 4.54ms. Allocated memory is still 3.2GB. Free memory was 2.6GB in the beginning and 2.6GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:08,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99ms. Allocated memory is still 117.4MB. Free memory was 74.3MB in the beginning and 74.2MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 837.42ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 91.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.33ms. Allocated memory is still 142.6MB. Free memory was 91.0MB in the beginning and 88.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 98.01ms. Allocated memory is still 142.6MB. Free memory was 88.6MB in the beginning and 84.6MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2275.91ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 64.5MB in the end (delta: 19.8MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * TraceAbstraction took 32385.05ms. Allocated memory was 142.6MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 63.7MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 532.2MB. Max. memory is 16.1GB. * Witness Printer took 4.54ms. Allocated memory is still 3.2GB. Free memory was 2.6GB in the beginning and 2.6GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L719] 0 _Bool __unbuffered_p3_EAX$flush_delayed; [L720] 0 int __unbuffered_p3_EAX$mem_tmp; [L721] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd0; [L722] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd1; [L723] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd2; [L724] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd3; [L725] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd4; [L726] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd0; [L727] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd1; [L728] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd2; [L729] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd3; [L730] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd4; [L731] 0 _Bool __unbuffered_p3_EAX$read_delayed; [L732] 0 int *__unbuffered_p3_EAX$read_delayed_var; [L733] 0 int __unbuffered_p3_EAX$w_buff0; [L734] 0 _Bool __unbuffered_p3_EAX$w_buff0_used; [L735] 0 int __unbuffered_p3_EAX$w_buff1; [L736] 0 _Bool __unbuffered_p3_EAX$w_buff1_used; [L738] 0 int a = 0; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L746] 0 int z = 0; [L747] 0 _Bool z$flush_delayed; [L748] 0 int z$mem_tmp; [L749] 0 _Bool z$r_buff0_thd0; [L750] 0 _Bool z$r_buff0_thd1; [L751] 0 _Bool z$r_buff0_thd2; [L752] 0 _Bool z$r_buff0_thd3; [L753] 0 _Bool z$r_buff0_thd4; [L754] 0 _Bool z$r_buff1_thd0; [L755] 0 _Bool z$r_buff1_thd1; [L756] 0 _Bool z$r_buff1_thd2; [L757] 0 _Bool z$r_buff1_thd3; [L758] 0 _Bool z$r_buff1_thd4; [L759] 0 _Bool z$read_delayed; [L760] 0 int *z$read_delayed_var; [L761] 0 int z$w_buff0; [L762] 0 _Bool z$w_buff0_used; [L763] 0 int z$w_buff1; [L764] 0 _Bool z$w_buff1_used; [L765] 0 _Bool weak$$choice0; [L766] 0 _Bool weak$$choice1; [L767] 0 _Bool weak$$choice2; [L875] 0 pthread_t t2709; [L876] FCALL, FORK 0 pthread_create(&t2709, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L877] 0 pthread_t t2710; [L878] FCALL, FORK 0 pthread_create(&t2710, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-2, t2710=-1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L879] 0 pthread_t t2711; [L880] FCALL, FORK 0 pthread_create(&t2711, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-2, t2710=-1, t2711=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L881] 0 pthread_t t2712; [L882] FCALL, FORK 0 pthread_create(&t2712, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-2, t2710=-1, t2711=0, t2712=1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L831] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 4 z$flush_delayed = weak$$choice2 [L834] EXPR 4 \read(z) [L834] 4 z$mem_tmp = z [L835] 4 weak$$choice1 = __VERIFIER_nondet_bool() [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] EXPR 4 \read(z) [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] 4 z = !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L837] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)))) [L838] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)))) [L839] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 || !weak$$choice1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : weak$$choice0)))) [L840] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L841] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L842] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$r_buff1_thd4 : (_Bool)0) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L843] 4 __unbuffered_p3_EAX$read_delayed = (_Bool)1 [L844] 4 __unbuffered_p3_EAX$read_delayed_var = &z [L845] EXPR 4 \read(z) [L845] 4 __unbuffered_p3_EAX = z [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] EXPR 4 \read(z) [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] 4 z = z$flush_delayed ? z$mem_tmp : z [L847] 4 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L850] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L771] 1 __unbuffered_p0_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L774] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L786] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 \read(z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L854] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L855] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L856] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L857] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L789] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L801] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L804] 3 z$w_buff1 = z$w_buff0 [L805] 3 z$w_buff0 = 1 [L806] 3 z$w_buff1_used = z$w_buff0_used [L807] 3 z$w_buff0_used = (_Bool)1 [L808] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L808] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 3 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 3 z$r_buff0_thd3 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L818] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L819] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L820] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L821] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L860] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L884] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-2, t2710=-1, t2711=0, t2712=1, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L886] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L886] RET 0 assume_abort_if_not(main$tmp_guard0) [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 \read(z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L889] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L890] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L891] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L892] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-2, t2710=-1, t2711=0, t2712=1, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L895] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 \read(*__unbuffered_p3_EAX$read_delayed_var) [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] 0 __unbuffered_p3_EAX = __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L897] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p3_EAX == 1) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-2, t2710=-1, t2711=0, t2712=1, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L899] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L17] 0 __assert_fail ("0", "thin002_power.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 880]: 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: 878]: 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: 882]: 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: 876]: 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 9 procedures, 139 locations, 62 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: 31.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 26.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 687 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 651 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1229 IncrementalHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 6 mSDtfsCounter, 1229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=269occurred in iteration=12, InterpolantAutomatonStates: 65, 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: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 293 ConstructedInterpolants, 0 QuantifiedInterpolants, 1090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 02:38:08,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:38:11,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:38:11,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 02:38:11,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:38:11,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:38:11,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:38:11,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:38:11,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:38:11,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:38:11,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:38:11,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:38:11,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:38:11,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:38:11,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:38:11,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:38:11,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:38:11,842 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:38:11,843 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:38:11,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:38:11,844 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:38:11,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:38:11,844 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:38:11,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:11,845 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:38:11,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:11,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:11,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:38:11,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:11,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:38:11,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:11,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:11,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:38:11,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:38:11,847 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:38:11,847 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:38:11,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:38:11,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:38:11,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:38:11,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:38:11,848 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_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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 -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2024-11-28 02:38:12,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:38:12,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:38:12,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:38:12,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:38:12,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:38:12,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-28 02:38:15,815 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/51ff44845/1fe198ec4d5543caa4426a238a3b629d/FLAGc74bdfba0 [2024-11-28 02:38:16,294 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:38:16,297 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2024-11-28 02:38:16,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/51ff44845/1fe198ec4d5543caa4426a238a3b629d/FLAGc74bdfba0 [2024-11-28 02:38:16,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/data/51ff44845/1fe198ec4d5543caa4426a238a3b629d [2024-11-28 02:38:16,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:38:16,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:38:16,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:16,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:38:16,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:38:16,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:16" (1/1) ... [2024-11-28 02:38:16,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e61c145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:16, skipping insertion in model container [2024-11-28 02:38:16,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:16" (1/1) ... [2024-11-28 02:38:16,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:38:16,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:16,879 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:38:16,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:17,033 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:38:17,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17 WrapperNode [2024-11-28 02:38:17,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:17,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:17,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:38:17,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:38:17,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,120 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 189 [2024-11-28 02:38:17,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:17,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:38:17,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:38:17,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:38:17,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,181 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5]. [2024-11-28 02:38:17,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,231 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:38:17,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:38:17,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:38:17,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:38:17,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (1/1) ... [2024-11-28 02:38:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:17,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:17,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:38:17,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:38:17,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:38:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:38:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:38:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:38:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:38:17,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:38:17,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:38:17,337 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:38:17,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:38:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 02:38:17,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 02:38:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 02:38:17,338 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 02:38:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:38:17,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:38:17,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:38:17,342 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 02:38:17,526 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:38:17,527 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:38:18,392 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:38:18,392 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:38:19,235 WARN L170 LargeBlockEncoding]: Complex 2:9 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-28 02:38:19,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:38:19,378 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:38:19,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:19 BoogieIcfgContainer [2024-11-28 02:38:19,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:38:19,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:38:19,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:38:19,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:38:19,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:38:16" (1/3) ... [2024-11-28 02:38:19,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@803a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:19, skipping insertion in model container [2024-11-28 02:38:19,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:17" (2/3) ... [2024-11-28 02:38:19,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@803a23e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:19, skipping insertion in model container [2024-11-28 02:38:19,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:19" (3/3) ... [2024-11-28 02:38:19,393 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2024-11-28 02:38:19,411 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:38:19,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_power.opt.i that has 5 procedures, 82 locations, 1 initial locations, 0 loop locations, and 33 error locations. [2024-11-28 02:38:19,415 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:38:19,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:38:19,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 200 flow [2024-11-28 02:38:19,782 INFO L124 PetriNetUnfolderBase]: 11/88 cut-off events. [2024-11-28 02:38:19,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:19,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 88 events. 11/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 310 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-11-28 02:38:19,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 200 flow [2024-11-28 02:38:19,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 188 flow [2024-11-28 02:38:19,809 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:38:19,824 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;@3f015c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:38:19,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-28 02:38:19,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:38:19,844 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-28 02:38:19,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:19,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:19,845 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:19,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:19,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 83213166, now seen corresponding path program 1 times [2024-11-28 02:38:19,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:19,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419429908] [2024-11-28 02:38:19,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:19,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:19,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:19,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:19,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:38:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:20,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:38:20,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:20,126 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 02:38:20,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:20,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:20,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419429908] [2024-11-28 02:38:20,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419429908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:20,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:20,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:20,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090488508] [2024-11-28 02:38:20,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:20,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:38:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:20,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:38:20,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:38:20,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:20,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 02:38:20,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:20,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:20,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:25,593 INFO L124 PetriNetUnfolderBase]: 15387/22619 cut-off events. [2024-11-28 02:38:25,594 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-28 02:38:25,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43583 conditions, 22619 events. 15387/22619 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 2285. Compared 194946 event pairs, 14847 based on Foata normal form. 720/14257 useless extension candidates. Maximal degree in co-relation 43571. Up to 20873 conditions per place. [2024-11-28 02:38:25,875 INFO L140 encePairwiseOnDemand]: 68/92 looper letters, 42 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2024-11-28 02:38:25,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 63 transitions, 222 flow [2024-11-28 02:38:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:38:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-28 02:38:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2024-11-28 02:38:25,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-28 02:38:25,898 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 188 flow. Second operand 2 states and 116 transitions. [2024-11-28 02:38:25,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 63 transitions, 222 flow [2024-11-28 02:38:25,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 63 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:38:25,912 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 134 flow [2024-11-28 02:38:25,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2024-11-28 02:38:25,920 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -18 predicate places. [2024-11-28 02:38:25,921 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 134 flow [2024-11-28 02:38:25,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 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 02:38:25,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:25,922 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:25,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:38:26,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:26,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:26,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:26,125 INFO L85 PathProgramCache]: Analyzing trace with hash -135839515, now seen corresponding path program 1 times [2024-11-28 02:38:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372724495] [2024-11-28 02:38:26,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:26,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:26,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:26,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:26,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:38:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:26,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:38:26,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:26,362 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 02:38:26,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:26,362 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:26,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372724495] [2024-11-28 02:38:26,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372724495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:26,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:26,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:26,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210788716] [2024-11-28 02:38:26,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:26,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:26,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:26,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:26,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:26,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:26,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:38:26,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:26,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:26,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:31,221 INFO L124 PetriNetUnfolderBase]: 21335/30947 cut-off events. [2024-11-28 02:38:31,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:31,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60180 conditions, 30947 events. 21335/30947 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3284. Compared 270957 event pairs, 6803 based on Foata normal form. 0/18585 useless extension candidates. Maximal degree in co-relation 60177. Up to 16269 conditions per place. [2024-11-28 02:38:31,735 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 71 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-11-28 02:38:31,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 95 transitions, 348 flow [2024-11-28 02:38:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-28 02:38:31,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5471014492753623 [2024-11-28 02:38:31,743 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 134 flow. Second operand 3 states and 151 transitions. [2024-11-28 02:38:31,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 95 transitions, 348 flow [2024-11-28 02:38:31,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 95 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:38:31,747 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 150 flow [2024-11-28 02:38:31,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-11-28 02:38:31,749 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -15 predicate places. [2024-11-28 02:38:31,749 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 150 flow [2024-11-28 02:38:31,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:38:31,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:31,750 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:31,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:38:31,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:31,955 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash 83213149, now seen corresponding path program 1 times [2024-11-28 02:38:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851751738] [2024-11-28 02:38:31,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:31,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:31,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:31,964 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:31,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:38:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:32,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:38:32,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:32,313 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 02:38:32,313 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:32,313 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:32,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851751738] [2024-11-28 02:38:32,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851751738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:32,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:32,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152896342] [2024-11-28 02:38:32,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:32,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:32,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:32,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:32,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:32,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:32,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:38:32,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:32,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:32,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:34,518 INFO L124 PetriNetUnfolderBase]: 9347/14219 cut-off events. [2024-11-28 02:38:34,518 INFO L125 PetriNetUnfolderBase]: For 2200/2200 co-relation queries the response was YES. [2024-11-28 02:38:34,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28756 conditions, 14219 events. 9347/14219 cut-off events. For 2200/2200 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 121249 event pairs, 9087 based on Foata normal form. 0/10655 useless extension candidates. Maximal degree in co-relation 28751. Up to 12892 conditions per place. [2024-11-28 02:38:34,662 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 34 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2024-11-28 02:38:34,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 56 transitions, 206 flow [2024-11-28 02:38:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-28 02:38:34,665 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375 [2024-11-28 02:38:34,665 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 150 flow. Second operand 3 states and 116 transitions. [2024-11-28 02:38:34,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 56 transitions, 206 flow [2024-11-28 02:38:34,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 56 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:34,671 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 132 flow [2024-11-28 02:38:34,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-28 02:38:34,673 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -22 predicate places. [2024-11-28 02:38:34,673 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 132 flow [2024-11-28 02:38:34,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:38:34,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:34,674 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:34,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:38:34,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:34,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:34,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:34,875 INFO L85 PathProgramCache]: Analyzing trace with hash 83213150, now seen corresponding path program 1 times [2024-11-28 02:38:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:34,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555690056] [2024-11-28 02:38:34,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:34,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:34,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:34,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:34,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:38:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:35,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:38:35,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:35,172 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 02:38:35,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:35,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:35,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555690056] [2024-11-28 02:38:35,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555690056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:35,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:35,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:35,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199210636] [2024-11-28 02:38:35,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:35,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:35,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:35,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:35,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:35,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:35,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:38:35,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:35,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:35,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:35,943 INFO L124 PetriNetUnfolderBase]: 2783/4499 cut-off events. [2024-11-28 02:38:35,943 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-28 02:38:35,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8972 conditions, 4499 events. 2783/4499 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 34959 event pairs, 2651 based on Foata normal form. 168/4279 useless extension candidates. Maximal degree in co-relation 8967. Up to 3928 conditions per place. [2024-11-28 02:38:35,963 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 26 selfloop transitions, 1 changer transitions 1/49 dead transitions. [2024-11-28 02:38:35,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 49 transitions, 174 flow [2024-11-28 02:38:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-28 02:38:35,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39492753623188404 [2024-11-28 02:38:35,964 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 132 flow. Second operand 3 states and 109 transitions. [2024-11-28 02:38:35,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 49 transitions, 174 flow [2024-11-28 02:38:35,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 49 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:38:35,966 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 117 flow [2024-11-28 02:38:35,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2024-11-28 02:38:35,967 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -28 predicate places. [2024-11-28 02:38:35,968 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 117 flow [2024-11-28 02:38:35,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 02:38:35,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:35,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:35,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:38:36,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:36,169 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:36,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash 769399511, now seen corresponding path program 1 times [2024-11-28 02:38:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:36,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790509842] [2024-11-28 02:38:36,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:36,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:36,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:36,177 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:36,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:38:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:36,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:38:36,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:36,409 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 02:38:36,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:36,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790509842] [2024-11-28 02:38:36,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790509842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:36,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:36,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881497543] [2024-11-28 02:38:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:36,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:36,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:36,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:36,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:36,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:38:36,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:36,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:36,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:37,140 INFO L124 PetriNetUnfolderBase]: 2415/3999 cut-off events. [2024-11-28 02:38:37,141 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-28 02:38:37,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7865 conditions, 3999 events. 2415/3999 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 30767 event pairs, 387 based on Foata normal form. 0/3703 useless extension candidates. Maximal degree in co-relation 7860. Up to 2981 conditions per place. [2024-11-28 02:38:37,174 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 35 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2024-11-28 02:38:37,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 221 flow [2024-11-28 02:38:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-28 02:38:37,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-11-28 02:38:37,176 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 117 flow. Second operand 3 states and 115 transitions. [2024-11-28 02:38:37,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 221 flow [2024-11-28 02:38:37,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 60 transitions, 220 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:38:37,179 INFO L231 Difference]: Finished difference. Result has 63 places, 48 transitions, 132 flow [2024-11-28 02:38:37,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=63, PETRI_TRANSITIONS=48} [2024-11-28 02:38:37,180 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -27 predicate places. [2024-11-28 02:38:37,180 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 48 transitions, 132 flow [2024-11-28 02:38:37,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:38:37,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:37,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:37,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:38:37,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:37,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:37,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:37,381 INFO L85 PathProgramCache]: Analyzing trace with hash 658657382, now seen corresponding path program 1 times [2024-11-28 02:38:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:37,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112782489] [2024-11-28 02:38:37,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:37,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:37,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:37,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:37,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:38:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:37,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:38:37,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:37,697 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 02:38:37,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:37,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112782489] [2024-11-28 02:38:37,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112782489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:37,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:37,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:38:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121173634] [2024-11-28 02:38:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:37,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:38:37,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:37,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:38:37,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:38:37,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:37,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 48 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:38:37,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:37,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:37,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:38,292 INFO L124 PetriNetUnfolderBase]: 2215/3715 cut-off events. [2024-11-28 02:38:38,293 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-28 02:38:38,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7819 conditions, 3715 events. 2215/3715 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 28472 event pairs, 331 based on Foata normal form. 0/3587 useless extension candidates. Maximal degree in co-relation 7813. Up to 2696 conditions per place. [2024-11-28 02:38:38,324 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 34 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-11-28 02:38:38,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 230 flow [2024-11-28 02:38:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:38:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:38:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-11-28 02:38:38,326 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-28 02:38:38,326 INFO L175 Difference]: Start difference. First operand has 63 places, 48 transitions, 132 flow. Second operand 4 states and 138 transitions. [2024-11-28 02:38:38,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 230 flow [2024-11-28 02:38:38,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:38,329 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 128 flow [2024-11-28 02:38:38,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-11-28 02:38:38,332 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -27 predicate places. [2024-11-28 02:38:38,334 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 128 flow [2024-11-28 02:38:38,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:38:38,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:38,335 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:38,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:38:38,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:38,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:38,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash 658657383, now seen corresponding path program 1 times [2024-11-28 02:38:38,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:38,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228336369] [2024-11-28 02:38:38,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:38,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:38,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:38,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:38,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:38:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:38,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:38:38,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:38,883 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 02:38:38,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:38,884 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:38,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228336369] [2024-11-28 02:38:38,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228336369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:38,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:38,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:38:38,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916980237] [2024-11-28 02:38:38,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:38,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:38:38,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:38,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:38:38,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:38:38,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 92 [2024-11-28 02:38:38,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:38:38,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:38,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 92 [2024-11-28 02:38:38,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:39,531 INFO L124 PetriNetUnfolderBase]: 2015/3431 cut-off events. [2024-11-28 02:38:39,531 INFO L125 PetriNetUnfolderBase]: For 544/544 co-relation queries the response was YES. [2024-11-28 02:38:39,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7155 conditions, 3431 events. 2015/3431 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 25991 event pairs, 275 based on Foata normal form. 84/3387 useless extension candidates. Maximal degree in co-relation 7149. Up to 2412 conditions per place. [2024-11-28 02:38:39,548 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 33 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2024-11-28 02:38:39,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 224 flow [2024-11-28 02:38:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:38:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:38:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-28 02:38:39,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37228260869565216 [2024-11-28 02:38:39,553 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 128 flow. Second operand 4 states and 137 transitions. [2024-11-28 02:38:39,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 224 flow [2024-11-28 02:38:39,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 02:38:39,556 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 123 flow [2024-11-28 02:38:39,556 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2024-11-28 02:38:39,557 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -28 predicate places. [2024-11-28 02:38:39,557 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 123 flow [2024-11-28 02:38:39,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 02:38:39,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:39,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:39,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:38:39,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:39,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:39,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1538892489, now seen corresponding path program 1 times [2024-11-28 02:38:39,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:39,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234078060] [2024-11-28 02:38:39,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:39,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:39,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:39,761 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:39,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:38:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:39,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:38:39,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:39,944 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 02:38:39,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:39,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:39,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234078060] [2024-11-28 02:38:39,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234078060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:39,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:39,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:38:39,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599647538] [2024-11-28 02:38:39,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:39,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:38:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:39,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:38:39,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:38:39,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 92 [2024-11-28 02:38:39,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:38:39,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:39,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 92 [2024-11-28 02:38:39,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:40,441 INFO L124 PetriNetUnfolderBase]: 2015/3331 cut-off events. [2024-11-28 02:38:40,441 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2024-11-28 02:38:40,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 3331 events. 2015/3331 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 25219 event pairs, 1919 based on Foata normal form. 100/3279 useless extension candidates. Maximal degree in co-relation 7049. Up to 2860 conditions per place. [2024-11-28 02:38:40,454 INFO L140 encePairwiseOnDemand]: 90/92 looper letters, 23 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 02:38:40,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 45 transitions, 171 flow [2024-11-28 02:38:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:38:40,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:38:40,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-28 02:38:40,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35144927536231885 [2024-11-28 02:38:40,455 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 123 flow. Second operand 3 states and 97 transitions. [2024-11-28 02:38:40,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 45 transitions, 171 flow [2024-11-28 02:38:40,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 45 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:40,457 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 116 flow [2024-11-28 02:38:40,457 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2024-11-28 02:38:40,458 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2024-11-28 02:38:40,458 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 116 flow [2024-11-28 02:38:40,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 02:38:40,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:40,459 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:40,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 02:38:40,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:40,659 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:40,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1538894704, now seen corresponding path program 1 times [2024-11-28 02:38:40,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:40,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689333950] [2024-11-28 02:38:40,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:40,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:40,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:40,662 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:40,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:38:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:40,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:38:40,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:40,842 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 02:38:40,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:40,842 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:40,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689333950] [2024-11-28 02:38:40,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689333950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:40,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:40,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:38:40,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087032177] [2024-11-28 02:38:40,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:40,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:38:40,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:40,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:38:40,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:38:40,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:40,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:38:40,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:40,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:40,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:42,125 INFO L124 PetriNetUnfolderBase]: 9108/13548 cut-off events. [2024-11-28 02:38:42,125 INFO L125 PetriNetUnfolderBase]: For 791/791 co-relation queries the response was YES. [2024-11-28 02:38:42,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28641 conditions, 13548 events. 9108/13548 cut-off events. For 791/791 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 96961 event pairs, 1042 based on Foata normal form. 369/13591 useless extension candidates. Maximal degree in co-relation 28636. Up to 8437 conditions per place. [2024-11-28 02:38:42,181 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 54 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2024-11-28 02:38:42,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 76 transitions, 336 flow [2024-11-28 02:38:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:38:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:38:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2024-11-28 02:38:42,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3804347826086957 [2024-11-28 02:38:42,182 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 116 flow. Second operand 4 states and 140 transitions. [2024-11-28 02:38:42,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 76 transitions, 336 flow [2024-11-28 02:38:42,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 76 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:38:42,184 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 157 flow [2024-11-28 02:38:42,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2024-11-28 02:38:42,185 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -26 predicate places. [2024-11-28 02:38:42,187 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 157 flow [2024-11-28 02:38:42,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 02:38:42,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:42,188 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] [2024-11-28 02:38:42,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:38:42,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:42,388 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:42,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash -264225631, now seen corresponding path program 1 times [2024-11-28 02:38:42,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:42,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446008163] [2024-11-28 02:38:42,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:42,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:42,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:42,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:42,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:38:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:42,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:38:42,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:42,601 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 02:38:42,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:42,601 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:42,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446008163] [2024-11-28 02:38:42,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446008163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:42,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:42,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:38:42,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482698178] [2024-11-28 02:38:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:42,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:38:42,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:42,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:38:42,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:38:42,613 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:42,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 02:38:42,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:42,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:42,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:43,778 INFO L124 PetriNetUnfolderBase]: 7554/11333 cut-off events. [2024-11-28 02:38:43,778 INFO L125 PetriNetUnfolderBase]: For 3577/3577 co-relation queries the response was YES. [2024-11-28 02:38:43,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27940 conditions, 11333 events. 7554/11333 cut-off events. For 3577/3577 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 78216 event pairs, 380 based on Foata normal form. 356/11425 useless extension candidates. Maximal degree in co-relation 27933. Up to 6433 conditions per place. [2024-11-28 02:38:43,933 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 69 selfloop transitions, 10 changer transitions 1/95 dead transitions. [2024-11-28 02:38:43,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 95 transitions, 482 flow [2024-11-28 02:38:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:38:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:38:43,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-11-28 02:38:43,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3869565217391304 [2024-11-28 02:38:43,934 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 157 flow. Second operand 5 states and 178 transitions. [2024-11-28 02:38:43,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 95 transitions, 482 flow [2024-11-28 02:38:43,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 471 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-28 02:38:43,938 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 209 flow [2024-11-28 02:38:43,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2024-11-28 02:38:43,939 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -22 predicate places. [2024-11-28 02:38:43,939 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 209 flow [2024-11-28 02:38:43,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 02:38:43,939 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:43,939 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, 1, 1] [2024-11-28 02:38:43,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:38:44,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:44,140 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:44,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:44,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2008365718, now seen corresponding path program 1 times [2024-11-28 02:38:44,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:44,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150922658] [2024-11-28 02:38:44,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:44,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:44,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:44,143 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:44,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:38:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:44,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:38:44,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:44,377 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 02:38:44,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:44,377 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:44,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150922658] [2024-11-28 02:38:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150922658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:44,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:44,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:44,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418119424] [2024-11-28 02:38:44,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:44,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:44,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:44,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:44,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:44,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 02:38:44,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:44,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:44,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:45,829 INFO L124 PetriNetUnfolderBase]: 4816/7263 cut-off events. [2024-11-28 02:38:45,829 INFO L125 PetriNetUnfolderBase]: For 5799/5799 co-relation queries the response was YES. [2024-11-28 02:38:45,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19792 conditions, 7263 events. 4816/7263 cut-off events. For 5799/5799 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 44833 event pairs, 142 based on Foata normal form. 284/7389 useless extension candidates. Maximal degree in co-relation 19784. Up to 2977 conditions per place. [2024-11-28 02:38:45,873 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 80 selfloop transitions, 14 changer transitions 1/110 dead transitions. [2024-11-28 02:38:45,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 110 transitions, 611 flow [2024-11-28 02:38:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 214 transitions. [2024-11-28 02:38:45,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38768115942028986 [2024-11-28 02:38:45,875 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 209 flow. Second operand 6 states and 214 transitions. [2024-11-28 02:38:45,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 110 transitions, 611 flow [2024-11-28 02:38:45,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 110 transitions, 581 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 02:38:45,888 INFO L231 Difference]: Finished difference. Result has 71 places, 56 transitions, 259 flow [2024-11-28 02:38:45,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=259, PETRI_PLACES=71, PETRI_TRANSITIONS=56} [2024-11-28 02:38:45,889 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -19 predicate places. [2024-11-28 02:38:45,889 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 56 transitions, 259 flow [2024-11-28 02:38:45,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 02:38:45,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:45,889 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:45,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:38:46,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:46,090 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:46,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:46,091 INFO L85 PathProgramCache]: Analyzing trace with hash 148934232, now seen corresponding path program 1 times [2024-11-28 02:38:46,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:46,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094504418] [2024-11-28 02:38:46,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:46,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:46,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:46,095 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:46,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:38:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:46,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:38:46,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:46,370 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 02:38:46,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:46,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:46,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094504418] [2024-11-28 02:38:46,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094504418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:46,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:46,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:38:46,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894954444] [2024-11-28 02:38:46,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:46,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:38:46,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:46,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:38:46,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:38:46,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 92 [2024-11-28 02:38:46,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 56 transitions, 259 flow. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:38:46,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:46,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 92 [2024-11-28 02:38:46,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:47,371 INFO L124 PetriNetUnfolderBase]: 2764/4063 cut-off events. [2024-11-28 02:38:47,372 INFO L125 PetriNetUnfolderBase]: For 5907/5907 co-relation queries the response was YES. [2024-11-28 02:38:47,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12489 conditions, 4063 events. 2764/4063 cut-off events. For 5907/5907 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 21336 event pairs, 80 based on Foata normal form. 144/4113 useless extension candidates. Maximal degree in co-relation 12480. Up to 1296 conditions per place. [2024-11-28 02:38:47,408 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 72 selfloop transitions, 18 changer transitions 1/106 dead transitions. [2024-11-28 02:38:47,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 106 transitions, 595 flow [2024-11-28 02:38:47,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:38:47,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:38:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-11-28 02:38:47,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-28 02:38:47,410 INFO L175 Difference]: Start difference. First operand has 71 places, 56 transitions, 259 flow. Second operand 7 states and 230 transitions. [2024-11-28 02:38:47,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 106 transitions, 595 flow [2024-11-28 02:38:47,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 106 transitions, 549 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 02:38:47,435 INFO L231 Difference]: Finished difference. Result has 74 places, 56 transitions, 269 flow [2024-11-28 02:38:47,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=269, PETRI_PLACES=74, PETRI_TRANSITIONS=56} [2024-11-28 02:38:47,436 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -16 predicate places. [2024-11-28 02:38:47,436 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 56 transitions, 269 flow [2024-11-28 02:38:47,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:38:47,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:47,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:47,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:38:47,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:47,637 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:47,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1745763403, now seen corresponding path program 1 times [2024-11-28 02:38:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:47,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912803737] [2024-11-28 02:38:47,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:47,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:47,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:47,640 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:47,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:38:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:47,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:38:47,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:48,100 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 02:38:48,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:48,100 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:48,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912803737] [2024-11-28 02:38:48,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912803737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:48,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:48,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:38:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885684077] [2024-11-28 02:38:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:48,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:38:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:48,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:38:48,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:38:48,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 92 [2024-11-28 02:38:48,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 56 transitions, 269 flow. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:48,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:48,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 92 [2024-11-28 02:38:48,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:49,677 INFO L124 PetriNetUnfolderBase]: 6496/9474 cut-off events. [2024-11-28 02:38:49,677 INFO L125 PetriNetUnfolderBase]: For 11952/11952 co-relation queries the response was YES. [2024-11-28 02:38:49,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28143 conditions, 9474 events. 6496/9474 cut-off events. For 11952/11952 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 58909 event pairs, 1419 based on Foata normal form. 32/9311 useless extension candidates. Maximal degree in co-relation 28133. Up to 4460 conditions per place. [2024-11-28 02:38:49,742 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 72 selfloop transitions, 9 changer transitions 35/129 dead transitions. [2024-11-28 02:38:49,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 129 transitions, 845 flow [2024-11-28 02:38:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:38:49,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:38:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-11-28 02:38:49,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34006211180124224 [2024-11-28 02:38:49,744 INFO L175 Difference]: Start difference. First operand has 74 places, 56 transitions, 269 flow. Second operand 7 states and 219 transitions. [2024-11-28 02:38:49,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 129 transitions, 845 flow [2024-11-28 02:38:49,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 129 transitions, 644 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-28 02:38:49,888 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 248 flow [2024-11-28 02:38:49,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=248, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-11-28 02:38:49,889 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -15 predicate places. [2024-11-28 02:38:49,889 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 248 flow [2024-11-28 02:38:49,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:49,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:49,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:49,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 02:38:50,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:50,090 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:50,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:50,091 INFO L85 PathProgramCache]: Analyzing trace with hash -939090715, now seen corresponding path program 2 times [2024-11-28 02:38:50,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:50,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821434576] [2024-11-28 02:38:50,092 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:38:50,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:50,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:50,094 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:50,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:38:50,289 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:38:50,289 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:38:50,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:38:50,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:50,561 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 02:38:50,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:50,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:50,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821434576] [2024-11-28 02:38:50,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821434576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:50,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:50,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:38:50,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000799054] [2024-11-28 02:38:50,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:50,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:38:50,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:50,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:38:50,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:38:50,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 92 [2024-11-28 02:38:50,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 248 flow. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:50,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:50,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 92 [2024-11-28 02:38:50,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:52,440 INFO L124 PetriNetUnfolderBase]: 7725/11847 cut-off events. [2024-11-28 02:38:52,440 INFO L125 PetriNetUnfolderBase]: For 3430/3474 co-relation queries the response was YES. [2024-11-28 02:38:52,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28213 conditions, 11847 events. 7725/11847 cut-off events. For 3430/3474 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 76215 event pairs, 2027 based on Foata normal form. 36/11632 useless extension candidates. Maximal degree in co-relation 28203. Up to 5876 conditions per place. [2024-11-28 02:38:52,515 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 81 selfloop transitions, 13 changer transitions 29/138 dead transitions. [2024-11-28 02:38:52,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 138 transitions, 793 flow [2024-11-28 02:38:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:38:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:38:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-11-28 02:38:52,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33229813664596275 [2024-11-28 02:38:52,517 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 248 flow. Second operand 7 states and 214 transitions. [2024-11-28 02:38:52,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 138 transitions, 793 flow [2024-11-28 02:38:52,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 138 transitions, 769 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-28 02:38:52,526 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 383 flow [2024-11-28 02:38:52,526 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2024-11-28 02:38:52,527 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -9 predicate places. [2024-11-28 02:38:52,527 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 383 flow [2024-11-28 02:38:52,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:52,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:52,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:52,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 02:38:52,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:52,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:52,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:52,732 INFO L85 PathProgramCache]: Analyzing trace with hash -418765177, now seen corresponding path program 3 times [2024-11-28 02:38:52,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:52,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999707762] [2024-11-28 02:38:52,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:38:52,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:52,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:52,735 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:52,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:38:52,947 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:38:52,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:38:52,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:38:52,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:38:53,203 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 02:38:53,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:38:53,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:38:53,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999707762] [2024-11-28 02:38:53,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999707762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:53,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:53,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:38:53,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327554357] [2024-11-28 02:38:53,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:53,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:38:53,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:38:53,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:38:53,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:38:53,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 92 [2024-11-28 02:38:53,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 74 transitions, 383 flow. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:53,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:53,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 92 [2024-11-28 02:38:53,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:54,338 INFO L124 PetriNetUnfolderBase]: 6029/8896 cut-off events. [2024-11-28 02:38:54,338 INFO L125 PetriNetUnfolderBase]: For 3805/3842 co-relation queries the response was YES. [2024-11-28 02:38:54,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21652 conditions, 8896 events. 6029/8896 cut-off events. For 3805/3842 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 51801 event pairs, 2409 based on Foata normal form. 35/8720 useless extension candidates. Maximal degree in co-relation 21639. Up to 5802 conditions per place. [2024-11-28 02:38:54,402 INFO L140 encePairwiseOnDemand]: 82/92 looper letters, 62 selfloop transitions, 8 changer transitions 55/141 dead transitions. [2024-11-28 02:38:54,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 924 flow [2024-11-28 02:38:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:38:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:38:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-11-28 02:38:54,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2024-11-28 02:38:54,404 INFO L175 Difference]: Start difference. First operand has 81 places, 74 transitions, 383 flow. Second operand 7 states and 207 transitions. [2024-11-28 02:38:54,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 141 transitions, 924 flow [2024-11-28 02:38:54,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 141 transitions, 904 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-28 02:38:54,415 INFO L231 Difference]: Finished difference. Result has 87 places, 68 transitions, 370 flow [2024-11-28 02:38:54,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=87, PETRI_TRANSITIONS=68} [2024-11-28 02:38:54,416 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -3 predicate places. [2024-11-28 02:38:54,417 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 68 transitions, 370 flow [2024-11-28 02:38:54,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 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 02:38:54,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:54,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:54,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 02:38:54,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:54,618 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 59 more)] === [2024-11-28 02:38:54,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:54,619 INFO L85 PathProgramCache]: Analyzing trace with hash -971550867, now seen corresponding path program 4 times [2024-11-28 02:38:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:38:54,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536277120] [2024-11-28 02:38:54,619 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:38:54,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:54,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:54,624 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:38:54,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:38:54,885 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:38:54,885 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-28 02:38:54,886 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:38:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:38:55,040 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 02:38:55,040 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:38:55,041 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (61 of 62 remaining) [2024-11-28 02:38:55,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (60 of 62 remaining) [2024-11-28 02:38:55,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 62 remaining) [2024-11-28 02:38:55,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 62 remaining) [2024-11-28 02:38:55,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 62 remaining) [2024-11-28 02:38:55,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 62 remaining) [2024-11-28 02:38:55,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (29 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 62 remaining) [2024-11-28 02:38:55,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 62 remaining) [2024-11-28 02:38:55,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 62 remaining) [2024-11-28 02:38:55,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 62 remaining) [2024-11-28 02:38:55,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 62 remaining) [2024-11-28 02:38:55,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 62 remaining) [2024-11-28 02:38:55,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 62 remaining) [2024-11-28 02:38:55,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:38:55,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:38:55,251 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:55,423 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:38:55,425 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:38:55,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:38:55 BasicIcfg [2024-11-28 02:38:55,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:38:55,436 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:38:55,436 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:38:55,436 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:38:55,437 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:19" (3/4) ... [2024-11-28 02:38:55,439 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:38:55,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:38:55,441 INFO L158 Benchmark]: Toolchain (without parser) took 39092.28ms. Allocated memory was 83.9MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 59.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-28 02:38:55,441 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:55,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.03ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 34.6MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:38:55,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.77ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 32.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:55,442 INFO L158 Benchmark]: Boogie Preprocessor took 133.34ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 58.1MB in the end (delta: -26.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-28 02:38:55,443 INFO L158 Benchmark]: RCFGBuilder took 2124.47ms. Allocated memory was 83.9MB in the beginning and 176.2MB in the end (delta: 92.3MB). Free memory was 58.1MB in the beginning and 141.0MB in the end (delta: -82.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2024-11-28 02:38:55,444 INFO L158 Benchmark]: TraceAbstraction took 36054.48ms. Allocated memory was 176.2MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 141.0MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-28 02:38:55,444 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 4.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:55,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.03ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 34.6MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.77ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 32.1MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 133.34ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 58.1MB in the end (delta: -26.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * RCFGBuilder took 2124.47ms. Allocated memory was 83.9MB in the beginning and 176.2MB in the end (delta: 92.3MB). Free memory was 58.1MB in the beginning and 141.0MB in the end (delta: -82.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. * TraceAbstraction took 36054.48ms. Allocated memory was 176.2MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 141.0MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 4.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L719] 0 _Bool __unbuffered_p3_EAX$flush_delayed; [L720] 0 int __unbuffered_p3_EAX$mem_tmp; [L721] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd0; [L722] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd1; [L723] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd2; [L724] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd3; [L725] 0 _Bool __unbuffered_p3_EAX$r_buff0_thd4; [L726] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd0; [L727] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd1; [L728] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd2; [L729] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd3; [L730] 0 _Bool __unbuffered_p3_EAX$r_buff1_thd4; [L731] 0 _Bool __unbuffered_p3_EAX$read_delayed; [L732] 0 int *__unbuffered_p3_EAX$read_delayed_var; [L733] 0 int __unbuffered_p3_EAX$w_buff0; [L734] 0 _Bool __unbuffered_p3_EAX$w_buff0_used; [L735] 0 int __unbuffered_p3_EAX$w_buff1; [L736] 0 _Bool __unbuffered_p3_EAX$w_buff1_used; [L738] 0 int a = 0; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L746] 0 int z = 0; [L747] 0 _Bool z$flush_delayed; [L748] 0 int z$mem_tmp; [L749] 0 _Bool z$r_buff0_thd0; [L750] 0 _Bool z$r_buff0_thd1; [L751] 0 _Bool z$r_buff0_thd2; [L752] 0 _Bool z$r_buff0_thd3; [L753] 0 _Bool z$r_buff0_thd4; [L754] 0 _Bool z$r_buff1_thd0; [L755] 0 _Bool z$r_buff1_thd1; [L756] 0 _Bool z$r_buff1_thd2; [L757] 0 _Bool z$r_buff1_thd3; [L758] 0 _Bool z$r_buff1_thd4; [L759] 0 _Bool z$read_delayed; [L760] 0 int *z$read_delayed_var; [L761] 0 int z$w_buff0; [L762] 0 _Bool z$w_buff0_used; [L763] 0 int z$w_buff1; [L764] 0 _Bool z$w_buff1_used; [L765] 0 _Bool weak$$choice0; [L766] 0 _Bool weak$$choice1; [L767] 0 _Bool weak$$choice2; [L875] 0 pthread_t t2709; [L876] FCALL, FORK 0 pthread_create(&t2709, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L877] 0 pthread_t t2710; [L878] FCALL, FORK 0 pthread_create(&t2710, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-1, t2710=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L879] 0 pthread_t t2711; [L880] FCALL, FORK 0 pthread_create(&t2711, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-1, t2710=0, t2711=1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L881] 0 pthread_t t2712; [L882] FCALL, FORK 0 pthread_create(&t2712, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=0, __unbuffered_p3_EAX$read_delayed_var={0:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t2709=-1, t2710=0, t2711=1, t2712=2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L831] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 4 z$flush_delayed = weak$$choice2 [L834] EXPR 4 \read(z) [L834] 4 z$mem_tmp = z [L835] 4 weak$$choice1 = __VERIFIER_nondet_bool() [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] EXPR 4 \read(z) [L836] EXPR 4 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L836] 4 z = !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L837] 4 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff0 : z$w_buff0)))) [L838] 4 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$w_buff1 : z$w_buff1)))) [L839] 4 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 || !weak$$choice1 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : weak$$choice0)))) [L840] 4 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? weak$$choice0 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L841] 4 z$r_buff0_thd4 = weak$$choice2 ? z$r_buff0_thd4 : (!z$w_buff0_used ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? z$r_buff0_thd4 : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L842] 4 z$r_buff1_thd4 = weak$$choice2 ? z$r_buff1_thd4 : (!z$w_buff0_used ? z$r_buff1_thd4 : (z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (weak$$choice0 ? z$r_buff1_thd4 : (_Bool)0) : (z$w_buff0_used && z$r_buff1_thd4 && z$w_buff1_used && !z$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)))) [L843] 4 __unbuffered_p3_EAX$read_delayed = (_Bool)1 [L844] 4 __unbuffered_p3_EAX$read_delayed_var = &z [L845] EXPR 4 \read(z) [L845] 4 __unbuffered_p3_EAX = z [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] EXPR 4 \read(z) [L846] EXPR 4 z$flush_delayed ? z$mem_tmp : z [L846] 4 z = z$flush_delayed ? z$mem_tmp : z [L847] 4 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L850] 4 a = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 \read(z) [L853] EXPR 4 z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z [L853] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L853] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L854] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L855] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L856] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L857] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L771] 1 __unbuffered_p0_EAX = a VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L774] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L786] 2 __unbuffered_p1_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L789] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L801] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L804] 3 z$w_buff1 = z$w_buff0 [L805] 3 z$w_buff0 = 1 [L806] 3 z$w_buff1_used = z$w_buff0_used [L807] 3 z$w_buff0_used = (_Bool)1 [L808] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L808] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 3 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 3 z$r_buff0_thd3 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L817] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L818] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L819] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L820] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L821] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L779] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L794] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L860] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L824] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L884] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-1, t2710=0, t2711=1, t2712=2, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L886] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L886] RET 0 assume_abort_if_not(main$tmp_guard0) [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 \read(z) [L888] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L888] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L888] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L889] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L890] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L891] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L892] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-1, t2710=0, t2711=1, t2712=2, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L895] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 \read(*__unbuffered_p3_EAX$read_delayed_var) [L896] EXPR 0 weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX [L896] EXPR 0 __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L896] 0 __unbuffered_p3_EAX = __unbuffered_p3_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p3_EAX$read_delayed_var : __unbuffered_p3_EAX) : __unbuffered_p3_EAX [L897] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p3_EAX == 1) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2709=-1, t2710=0, t2711=1, t2712=2, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L899] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L17] 0 __assert_fail ("0", "thin002_power.opt.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX$flush_delayed=0, __unbuffered_p3_EAX$mem_tmp=0, __unbuffered_p3_EAX$r_buff0_thd0=0, __unbuffered_p3_EAX$r_buff0_thd1=0, __unbuffered_p3_EAX$r_buff0_thd2=0, __unbuffered_p3_EAX$r_buff0_thd3=0, __unbuffered_p3_EAX$r_buff0_thd4=0, __unbuffered_p3_EAX$r_buff1_thd0=0, __unbuffered_p3_EAX$r_buff1_thd1=0, __unbuffered_p3_EAX$r_buff1_thd2=0, __unbuffered_p3_EAX$r_buff1_thd3=0, __unbuffered_p3_EAX$r_buff1_thd4=0, __unbuffered_p3_EAX$read_delayed=1, __unbuffered_p3_EAX$read_delayed_var={3:0}, __unbuffered_p3_EAX$w_buff0=0, __unbuffered_p3_EAX$w_buff0_used=0, __unbuffered_p3_EAX$w_buff1=0, __unbuffered_p3_EAX$w_buff1_used=0, __unbuffered_p3_EAX=1, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 873]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 876]: 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: 880]: 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: 878]: 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: 882]: 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 9 procedures, 139 locations, 62 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: 35.6s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 27.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 810 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 788 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1795 IncrementalHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 10 mSDtfsCounter, 1795 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=14, InterpolantAutomatonStates: 68, 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: 0.5s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 293 ConstructedInterpolants, 0 QuantifiedInterpolants, 1468 SizeOfPredicates, 31 NumberOfNonLiveVariables, 2170 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 02:38:55,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d04ce0-84f5-44a6-bc86-730e5c27f345/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