./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU --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 ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:00,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:00,101 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:03:00,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:00,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:00,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:00,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:00,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:00,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:00,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:00,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:00,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:00,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:00,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:00,134 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:00,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:00,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:00,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:00,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:00,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:00,136 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:03:00,137 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:03:00,137 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:03:00,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:00,138 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:03:00,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:00,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:00,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:00,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:00,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:00,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:00,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:00,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:00,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:00,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:00,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:00,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:00,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:00,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:00,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:00,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:00,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:00,145 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 [2024-10-31 22:03:00,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:00,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:00,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:00,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:00,433 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:00,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:03:02,565 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:02,863 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:02,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i [2024-10-31 22:03:02,884 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/data/d941aa7a7/9dad2a93087041ccbe3e3ba7da26780f/FLAGaa8d11b99 [2024-10-31 22:03:03,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/data/d941aa7a7/9dad2a93087041ccbe3e3ba7da26780f [2024-10-31 22:03:03,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:03,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:03,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:03,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:03,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:03,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:03,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b58c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03, skipping insertion in model container [2024-10-31 22:03:03,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:03,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:03,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:03,842 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:03,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:03,954 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:03,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03 WrapperNode [2024-10-31 22:03:03,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:03,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:03,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:03,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:03,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:03,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,048 INFO L138 Inliner]: procedures = 176, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 176 [2024-10-31 22:03:04,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:04,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:04,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:04,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:04,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,113 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 9 writes are split as follows [0, 9]. [2024-10-31 22:03:04,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:04,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:04,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:04,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:04,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (1/1) ... [2024-10-31 22:03:04,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:04,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:04,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:04,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8870fdb-9882-4ade-b4e3-43b90a2cc9d0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:03:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:03:04,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:03:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:03:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:03:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:03:04,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:03:04,282 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:03:04,282 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:03:04,284 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:03:04,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:03:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:03:04,285 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:03:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:03:04,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:03:04,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:04,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:04,288 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:03:04,506 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:04,508 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:05,179 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:05,180 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:06,016 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:06,017 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:06,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:06 BoogieIcfgContainer [2024-10-31 22:03:06,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:06,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:06,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:06,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:06,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:03" (1/3) ... [2024-10-31 22:03:06,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9bcb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:06, skipping insertion in model container [2024-10-31 22:03:06,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:03" (2/3) ... [2024-10-31 22:03:06,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9bcb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:06, skipping insertion in model container [2024-10-31 22:03:06,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:06" (3/3) ... [2024-10-31 22:03:06,031 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.oepc.i [2024-10-31 22:03:06,052 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:06,052 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-10-31 22:03:06,053 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:06,208 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:03:06,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 92 transitions, 200 flow [2024-10-31 22:03:06,362 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2024-10-31 22:03:06,363 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:06,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 314 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-10-31 22:03:06,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 92 transitions, 200 flow [2024-10-31 22:03:06,378 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 88 transitions, 188 flow [2024-10-31 22:03:06,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:06,401 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;@45d5694, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:06,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-10-31 22:03:06,406 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:06,406 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:03:06,406 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:06,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:06,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:03:06,408 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:06,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 26537218, now seen corresponding path program 1 times [2024-10-31 22:03:06,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938062189] [2024-10-31 22:03:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:06,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:06,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:06,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938062189] [2024-10-31 22:03:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938062189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:06,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:06,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:06,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138234096] [2024-10-31 22:03:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:06,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:06,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:06,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:06,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 92 [2024-10-31 22:03:06,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-10-31 22:03:06,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:06,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 92 [2024-10-31 22:03:06,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:13,472 INFO L124 PetriNetUnfolderBase]: 16139/23720 cut-off events. [2024-10-31 22:03:13,473 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-31 22:03:13,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45628 conditions, 23720 events. 16139/23720 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 189823 event pairs, 16139 based on Foata normal form. 784/16090 useless extension candidates. Maximal degree in co-relation 45616. Up to 21764 conditions per place. [2024-10-31 22:03:13,723 INFO L140 encePairwiseOnDemand]: 59/92 looper letters, 36 selfloop transitions, 1 changer transitions 0/55 dead transitions. [2024-10-31 22:03:13,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 196 flow [2024-10-31 22:03:13,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-10-31 22:03:13,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2024-10-31 22:03:13,744 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 188 flow. Second operand 3 states and 135 transitions. [2024-10-31 22:03:13,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 196 flow [2024-10-31 22:03:13,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 55 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:03:13,758 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 120 flow [2024-10-31 22:03:13,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2024-10-31 22:03:13,767 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -33 predicate places. [2024-10-31 22:03:13,767 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 120 flow [2024-10-31 22:03:13,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-10-31 22:03:13,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:13,768 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:03:13,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:13,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:13,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:13,771 INFO L85 PathProgramCache]: Analyzing trace with hash 26537219, now seen corresponding path program 1 times [2024-10-31 22:03:13,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:13,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461020226] [2024-10-31 22:03:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:13,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:13,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:13,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461020226] [2024-10-31 22:03:13,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461020226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:13,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:13,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:13,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425791087] [2024-10-31 22:03:13,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:13,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:13,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:13,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:13,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 92 [2024-10-31 22:03:13,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-10-31 22:03:13,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:13,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 92 [2024-10-31 22:03:13,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:15,310 INFO L124 PetriNetUnfolderBase]: 2831/4522 cut-off events. [2024-10-31 22:03:15,311 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:15,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8548 conditions, 4522 events. 2831/4522 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 32588 event pairs, 2831 based on Foata normal form. 0/4251 useless extension candidates. Maximal degree in co-relation 8542. Up to 3954 conditions per place. [2024-10-31 22:03:15,346 INFO L140 encePairwiseOnDemand]: 81/92 looper letters, 25 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-31 22:03:15,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 154 flow [2024-10-31 22:03:15,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-10-31 22:03:15,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37318840579710144 [2024-10-31 22:03:15,350 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 120 flow. Second operand 3 states and 103 transitions. [2024-10-31 22:03:15,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 154 flow [2024-10-31 22:03:15,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 45 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:15,352 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 99 flow [2024-10-31 22:03:15,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=55, 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=99, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2024-10-31 22:03:15,353 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2024-10-31 22:03:15,353 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 99 flow [2024-10-31 22:03:15,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-10-31 22:03:15,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:15,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:15,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:15,355 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:15,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:15,355 INFO L85 PathProgramCache]: Analyzing trace with hash 465069323, now seen corresponding path program 1 times [2024-10-31 22:03:15,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:15,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937692591] [2024-10-31 22:03:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:15,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:15,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937692591] [2024-10-31 22:03:15,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937692591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:15,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:15,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:15,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997815377] [2024-10-31 22:03:15,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:15,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:15,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:15,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:15,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:15,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 92 [2024-10-31 22:03:15,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-31 22:03:15,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:15,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 92 [2024-10-31 22:03:15,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:16,883 INFO L124 PetriNetUnfolderBase]: 2383/3785 cut-off events. [2024-10-31 22:03:16,883 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:16,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7204 conditions, 3785 events. 2383/3785 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 25004 event pairs, 1171 based on Foata normal form. 0/3621 useless extension candidates. Maximal degree in co-relation 7197. Up to 2565 conditions per place. [2024-10-31 22:03:16,923 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 44 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-10-31 22:03:16,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 237 flow [2024-10-31 22:03:16,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:16,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:16,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-10-31 22:03:16,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-10-31 22:03:16,929 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 99 flow. Second operand 3 states and 114 transitions. [2024-10-31 22:03:16,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 237 flow [2024-10-31 22:03:16,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:16,932 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 108 flow [2024-10-31 22:03:16,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2024-10-31 22:03:16,933 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -41 predicate places. [2024-10-31 22:03:16,933 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 108 flow [2024-10-31 22:03:16,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-31 22:03:16,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:16,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:16,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:16,936 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:16,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash 255069214, now seen corresponding path program 1 times [2024-10-31 22:03:16,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:16,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091529889] [2024-10-31 22:03:16,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:16,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:17,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:17,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091529889] [2024-10-31 22:03:17,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091529889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:17,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:17,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:17,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613197553] [2024-10-31 22:03:17,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:17,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:17,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:17,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:17,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 92 [2024-10-31 22:03:17,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-31 22:03:17,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:17,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 92 [2024-10-31 22:03:17,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:18,203 INFO L124 PetriNetUnfolderBase]: 2223/4145 cut-off events. [2024-10-31 22:03:18,204 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-10-31 22:03:18,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7962 conditions, 4145 events. 2223/4145 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 32891 event pairs, 535 based on Foata normal form. 0/4085 useless extension candidates. Maximal degree in co-relation 7953. Up to 2340 conditions per place. [2024-10-31 22:03:18,232 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 43 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-10-31 22:03:18,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 240 flow [2024-10-31 22:03:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:18,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2024-10-31 22:03:18,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3641304347826087 [2024-10-31 22:03:18,235 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 108 flow. Second operand 4 states and 134 transitions. [2024-10-31 22:03:18,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 240 flow [2024-10-31 22:03:18,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:18,240 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 104 flow [2024-10-31 22:03:18,240 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-10-31 22:03:18,241 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -41 predicate places. [2024-10-31 22:03:18,241 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 104 flow [2024-10-31 22:03:18,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-31 22:03:18,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:18,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:18,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:18,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:18,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash 255069215, now seen corresponding path program 1 times [2024-10-31 22:03:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:18,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028458790] [2024-10-31 22:03:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:18,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:18,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:18,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028458790] [2024-10-31 22:03:18,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028458790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:18,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:18,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:18,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557132830] [2024-10-31 22:03:18,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:18,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:18,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:18,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:18,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:18,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 92 [2024-10-31 22:03:18,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-31 22:03:18,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:18,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 92 [2024-10-31 22:03:18,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:19,538 INFO L124 PetriNetUnfolderBase]: 2063/3921 cut-off events. [2024-10-31 22:03:19,538 INFO L125 PetriNetUnfolderBase]: For 310/310 co-relation queries the response was YES. [2024-10-31 22:03:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7450 conditions, 3921 events. 2063/3921 cut-off events. For 310/310 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 31176 event pairs, 503 based on Foata normal form. 64/3957 useless extension candidates. Maximal degree in co-relation 7441. Up to 2116 conditions per place. [2024-10-31 22:03:19,577 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-10-31 22:03:19,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 62 transitions, 234 flow [2024-10-31 22:03:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-10-31 22:03:19,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36141304347826086 [2024-10-31 22:03:19,579 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 104 flow. Second operand 4 states and 133 transitions. [2024-10-31 22:03:19,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 62 transitions, 234 flow [2024-10-31 22:03:19,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 229 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:03:19,581 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 99 flow [2024-10-31 22:03:19,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-10-31 22:03:19,582 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2024-10-31 22:03:19,582 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 99 flow [2024-10-31 22:03:19,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-31 22:03:19,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:19,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:19,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:19,583 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:19,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash 295642554, now seen corresponding path program 1 times [2024-10-31 22:03:19,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:19,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105996889] [2024-10-31 22:03:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:19,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105996889] [2024-10-31 22:03:19,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105996889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:19,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983065556] [2024-10-31 22:03:19,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:19,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:19,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 92 [2024-10-31 22:03:19,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-31 22:03:19,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:19,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 92 [2024-10-31 22:03:19,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:20,503 INFO L124 PetriNetUnfolderBase]: 2063/3370 cut-off events. [2024-10-31 22:03:20,504 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-31 22:03:20,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6898 conditions, 3370 events. 2063/3370 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 23619 event pairs, 2063 based on Foata normal form. 96/3387 useless extension candidates. Maximal degree in co-relation 6890. Up to 2898 conditions per place. [2024-10-31 22:03:20,527 INFO L140 encePairwiseOnDemand]: 90/92 looper letters, 22 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-31 22:03:20,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 41 transitions, 145 flow [2024-10-31 22:03:20,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:20,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-10-31 22:03:20,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3188405797101449 [2024-10-31 22:03:20,529 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 99 flow. Second operand 3 states and 88 transitions. [2024-10-31 22:03:20,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 41 transitions, 145 flow [2024-10-31 22:03:20,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 41 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:20,530 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 94 flow [2024-10-31 22:03:20,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2024-10-31 22:03:20,535 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -43 predicate places. [2024-10-31 22:03:20,535 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 94 flow [2024-10-31 22:03:20,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-10-31 22:03:20,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:20,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:20,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:03:20,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:20,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash 295641069, now seen corresponding path program 1 times [2024-10-31 22:03:20,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:20,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104725760] [2024-10-31 22:03:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:20,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:20,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:20,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104725760] [2024-10-31 22:03:20,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104725760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:20,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:20,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:03:20,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664690403] [2024-10-31 22:03:20,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:20,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:20,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:20,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 92 [2024-10-31 22:03:20,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-10-31 22:03:20,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:20,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 92 [2024-10-31 22:03:20,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:22,577 INFO L124 PetriNetUnfolderBase]: 7438/11046 cut-off events. [2024-10-31 22:03:22,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:22,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22707 conditions, 11046 events. 7438/11046 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 72715 event pairs, 770 based on Foata normal form. 300/11331 useless extension candidates. Maximal degree in co-relation 22699. Up to 6691 conditions per place. [2024-10-31 22:03:22,642 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 51 selfloop transitions, 6 changer transitions 1/70 dead transitions. [2024-10-31 22:03:22,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 70 transitions, 280 flow [2024-10-31 22:03:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:03:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2024-10-31 22:03:22,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34782608695652173 [2024-10-31 22:03:22,645 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 94 flow. Second operand 4 states and 128 transitions. [2024-10-31 22:03:22,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 70 transitions, 280 flow [2024-10-31 22:03:22,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 70 transitions, 279 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:03:22,650 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 135 flow [2024-10-31 22:03:22,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-10-31 22:03:22,651 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -40 predicate places. [2024-10-31 22:03:22,651 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 135 flow [2024-10-31 22:03:22,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-10-31 22:03:22,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:22,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:22,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:03:22,652 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:22,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash -57609745, now seen corresponding path program 1 times [2024-10-31 22:03:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:22,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950843810] [2024-10-31 22:03:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:23,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:23,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950843810] [2024-10-31 22:03:23,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950843810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:23,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:23,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:23,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538787744] [2024-10-31 22:03:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:23,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:23,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:23,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 92 [2024-10-31 22:03:23,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-10-31 22:03:23,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:23,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 92 [2024-10-31 22:03:23,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:24,405 INFO L124 PetriNetUnfolderBase]: 5806/8694 cut-off events. [2024-10-31 22:03:24,406 INFO L125 PetriNetUnfolderBase]: For 2109/2109 co-relation queries the response was YES. [2024-10-31 22:03:24,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20738 conditions, 8694 events. 5806/8694 cut-off events. For 2109/2109 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 54365 event pairs, 294 based on Foata normal form. 282/8961 useless extension candidates. Maximal degree in co-relation 20727. Up to 4585 conditions per place. [2024-10-31 22:03:24,476 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 65 selfloop transitions, 10 changer transitions 1/88 dead transitions. [2024-10-31 22:03:24,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 88 transitions, 410 flow [2024-10-31 22:03:24,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:03:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:03:24,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 163 transitions. [2024-10-31 22:03:24,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35434782608695653 [2024-10-31 22:03:24,479 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 135 flow. Second operand 5 states and 163 transitions. [2024-10-31 22:03:24,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 88 transitions, 410 flow [2024-10-31 22:03:24,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 88 transitions, 399 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:03:24,488 INFO L231 Difference]: Finished difference. Result has 63 places, 48 transitions, 187 flow [2024-10-31 22:03:24,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=63, PETRI_TRANSITIONS=48} [2024-10-31 22:03:24,491 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -36 predicate places. [2024-10-31 22:03:24,492 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 48 transitions, 187 flow [2024-10-31 22:03:24,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-10-31 22:03:24,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:24,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:24,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:03:24,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:24,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1932887687, now seen corresponding path program 1 times [2024-10-31 22:03:24,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:24,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270110192] [2024-10-31 22:03:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:25,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:25,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270110192] [2024-10-31 22:03:25,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270110192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:25,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:25,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138951062] [2024-10-31 22:03:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:25,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:25,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:25,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:25,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:25,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 92 [2024-10-31 22:03:25,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 48 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-31 22:03:25,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:25,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 92 [2024-10-31 22:03:25,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:26,319 INFO L124 PetriNetUnfolderBase]: 3561/5327 cut-off events. [2024-10-31 22:03:26,319 INFO L125 PetriNetUnfolderBase]: For 3900/3900 co-relation queries the response was YES. [2024-10-31 22:03:26,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14214 conditions, 5327 events. 3561/5327 cut-off events. For 3900/3900 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 29437 event pairs, 149 based on Foata normal form. 204/5516 useless extension candidates. Maximal degree in co-relation 14201. Up to 1801 conditions per place. [2024-10-31 22:03:26,356 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 77 selfloop transitions, 14 changer transitions 1/104 dead transitions. [2024-10-31 22:03:26,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 539 flow [2024-10-31 22:03:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:03:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 196 transitions. [2024-10-31 22:03:26,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35507246376811596 [2024-10-31 22:03:26,359 INFO L175 Difference]: Start difference. First operand has 63 places, 48 transitions, 187 flow. Second operand 6 states and 196 transitions. [2024-10-31 22:03:26,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 539 flow [2024-10-31 22:03:26,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 509 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:03:26,383 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 237 flow [2024-10-31 22:03:26,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-10-31 22:03:26,384 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -33 predicate places. [2024-10-31 22:03:26,385 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 237 flow [2024-10-31 22:03:26,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-31 22:03:26,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:26,385 INFO L204 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] [2024-10-31 22:03:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:03:26,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:26,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:26,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2008231761, now seen corresponding path program 1 times [2024-10-31 22:03:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375730201] [2024-10-31 22:03:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:27,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:27,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375730201] [2024-10-31 22:03:27,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375730201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:27,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:27,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:03:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279319306] [2024-10-31 22:03:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:27,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:27,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:27,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:27,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:27,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 92 [2024-10-31 22:03:27,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 237 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:27,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:27,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 92 [2024-10-31 22:03:27,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:28,052 INFO L124 PetriNetUnfolderBase]: 2205/3207 cut-off events. [2024-10-31 22:03:28,053 INFO L125 PetriNetUnfolderBase]: For 4072/4072 co-relation queries the response was YES. [2024-10-31 22:03:28,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9583 conditions, 3207 events. 2205/3207 cut-off events. For 4072/4072 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15634 event pairs, 103 based on Foata normal form. 88/3280 useless extension candidates. Maximal degree in co-relation 9569. Up to 1020 conditions per place. [2024-10-31 22:03:28,087 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 69 selfloop transitions, 18 changer transitions 1/100 dead transitions. [2024-10-31 22:03:28,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 100 transitions, 531 flow [2024-10-31 22:03:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:28,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:03:28,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions. [2024-10-31 22:03:28,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3245341614906832 [2024-10-31 22:03:28,090 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 237 flow. Second operand 7 states and 209 transitions. [2024-10-31 22:03:28,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 100 transitions, 531 flow [2024-10-31 22:03:28,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 100 transitions, 485 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-31 22:03:28,118 INFO L231 Difference]: Finished difference. Result has 69 places, 52 transitions, 247 flow [2024-10-31 22:03:28,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=69, PETRI_TRANSITIONS=52} [2024-10-31 22:03:28,120 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -30 predicate places. [2024-10-31 22:03:28,120 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 52 transitions, 247 flow [2024-10-31 22:03:28,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:28,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:28,121 INFO L204 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] [2024-10-31 22:03:28,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:03:28,121 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:28,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:28,122 INFO L85 PathProgramCache]: Analyzing trace with hash 556051302, now seen corresponding path program 1 times [2024-10-31 22:03:28,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:28,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122471334] [2024-10-31 22:03:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:28,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:29,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:29,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122471334] [2024-10-31 22:03:29,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122471334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:29,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:29,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:29,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987131052] [2024-10-31 22:03:29,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:29,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:29,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:29,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:29,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:29,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 92 [2024-10-31 22:03:29,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 52 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-31 22:03:29,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:29,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 92 [2024-10-31 22:03:29,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:30,250 INFO L124 PetriNetUnfolderBase]: 3864/6360 cut-off events. [2024-10-31 22:03:30,250 INFO L125 PetriNetUnfolderBase]: For 3023/3163 co-relation queries the response was YES. [2024-10-31 22:03:30,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15519 conditions, 6360 events. 3864/6360 cut-off events. For 3023/3163 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 42839 event pairs, 611 based on Foata normal form. 16/6037 useless extension candidates. Maximal degree in co-relation 15504. Up to 2484 conditions per place. [2024-10-31 22:03:30,288 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 46 selfloop transitions, 4 changer transitions 19/95 dead transitions. [2024-10-31 22:03:30,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 95 transitions, 493 flow [2024-10-31 22:03:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:03:30,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2024-10-31 22:03:30,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-10-31 22:03:30,291 INFO L175 Difference]: Start difference. First operand has 69 places, 52 transitions, 247 flow. Second operand 6 states and 184 transitions. [2024-10-31 22:03:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 95 transitions, 493 flow [2024-10-31 22:03:30,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 95 transitions, 387 flow, removed 22 selfloop flow, removed 10 redundant places. [2024-10-31 22:03:30,359 INFO L231 Difference]: Finished difference. Result has 68 places, 54 transitions, 179 flow [2024-10-31 22:03:30,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=68, PETRI_TRANSITIONS=54} [2024-10-31 22:03:30,360 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -31 predicate places. [2024-10-31 22:03:30,360 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 54 transitions, 179 flow [2024-10-31 22:03:30,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-31 22:03:30,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:30,361 INFO L204 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] [2024-10-31 22:03:30,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:03:30,361 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-10-31 22:03:30,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash 17818828, now seen corresponding path program 2 times [2024-10-31 22:03:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:30,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953455273] [2024-10-31 22:03:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:30,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat