./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:01,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:01,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:57:01,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:01,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:01,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:01,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:01,318 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:01,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:01,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:01,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:01,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:01,321 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:01,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:01,322 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:01,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:01,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:01,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:01,325 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:57:01,325 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:57:01,326 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:57:01,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:01,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:57:01,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:01,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:01,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:01,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:01,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:01,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:01,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:01,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:01,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:01,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:01,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:01,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:01,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:01,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:01,334 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:01,335 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_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2023-11-19 07:57:01,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:01,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:01,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:01,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:01,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:01,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-19 07:57:04,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:05,246 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:05,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-19 07:57:05,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/data/29c13e254/2a0336d98d494c4bbd975874d18e6462/FLAG91f22e975 [2023-11-19 07:57:05,292 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/data/29c13e254/2a0336d98d494c4bbd975874d18e6462 [2023-11-19 07:57:05,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:05,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:05,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:05,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:05,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:05,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:05,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245e89ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05, skipping insertion in model container [2023-11-19 07:57:05,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:05,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:05,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:05,813 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:05,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:05,939 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:05,939 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:05,948 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:05,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05 WrapperNode [2023-11-19 07:57:05,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:05,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:05,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:05,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:05,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:05,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,029 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2023-11-19 07:57:06,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:06,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:06,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:06,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:06,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:06,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:06,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:06,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:06,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (1/1) ... [2023-11-19 07:57:06,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:06,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:06,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:06,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:57:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:06,216 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:57:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:57:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:57:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:57:06,217 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:57:06,217 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:57:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:57:06,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:06,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:06,221 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:57:06,413 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:06,418 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:06,643 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:06,653 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:06,653 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:57:06,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:06 BoogieIcfgContainer [2023-11-19 07:57:06,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:06,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:06,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:06,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:06,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:05" (1/3) ... [2023-11-19 07:57:06,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab4ff93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:06, skipping insertion in model container [2023-11-19 07:57:06,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:05" (2/3) ... [2023-11-19 07:57:06,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab4ff93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:06, skipping insertion in model container [2023-11-19 07:57:06,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:06" (3/3) ... [2023-11-19 07:57:06,677 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-19 07:57:06,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:06,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:57:06,700 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:57:06,765 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:57:06,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 107 transitions, 226 flow [2023-11-19 07:57:06,858 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-19 07:57:06,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:06,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2023-11-19 07:57:06,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 107 transitions, 226 flow [2023-11-19 07:57:06,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 99 transitions, 207 flow [2023-11-19 07:57:06,873 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:06,884 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 07:57:06,887 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 07:57:06,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 99 transitions, 207 flow [2023-11-19 07:57:06,915 INFO L124 PetriNetUnfolderBase]: 3/99 cut-off events. [2023-11-19 07:57:06,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:06,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 3/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-19 07:57:06,919 INFO L119 LiptonReduction]: Number of co-enabled transitions 2320 [2023-11-19 07:57:10,145 INFO L134 LiptonReduction]: Checked pairs total: 3497 [2023-11-19 07:57:10,145 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-11-19 07:57:10,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:10,170 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fc09ed9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:10,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:57:10,172 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:10,173 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:57:10,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:10,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:10,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:57:10,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:10,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 385, now seen corresponding path program 1 times [2023-11-19 07:57:10,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:10,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000542893] [2023-11-19 07:57:10,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:10,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:10,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:10,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000542893] [2023-11-19 07:57:10,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000542893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:10,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:10,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:57:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789323820] [2023-11-19 07:57:10,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:10,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:10,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:10,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:10,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 213 [2023-11-19 07:57:10,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:10,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:10,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 213 [2023-11-19 07:57:10,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:10,704 INFO L124 PetriNetUnfolderBase]: 513/792 cut-off events. [2023-11-19 07:57:10,704 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-19 07:57:10,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1617 conditions, 792 events. 513/792 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3193 event pairs, 513 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 1606. Up to 787 conditions per place. [2023-11-19 07:57:10,716 INFO L140 encePairwiseOnDemand]: 206/213 looper letters, 18 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-11-19 07:57:10,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 83 flow [2023-11-19 07:57:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:57:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 225 transitions. [2023-11-19 07:57:10,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.528169014084507 [2023-11-19 07:57:10,740 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 225 transitions. [2023-11-19 07:57:10,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 225 transitions. [2023-11-19 07:57:10,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:10,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 225 transitions. [2023-11-19 07:57:10,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:10,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:10,766 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 225 transitions. [2023-11-19 07:57:10,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 83 flow [2023-11-19 07:57:10,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:10,772 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-11-19 07:57:10,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-11-19 07:57:10,780 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-11-19 07:57:10,781 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-11-19 07:57:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:10,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:10,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:10,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:10,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:10,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2038951268, now seen corresponding path program 1 times [2023-11-19 07:57:10,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:10,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400463173] [2023-11-19 07:57:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:10,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:11,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:11,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400463173] [2023-11-19 07:57:11,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400463173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:11,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:11,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:11,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294858289] [2023-11-19 07:57:11,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:11,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:11,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:11,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:11,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 213 [2023-11-19 07:57:11,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:11,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:11,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 213 [2023-11-19 07:57:11,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:12,009 INFO L124 PetriNetUnfolderBase]: 409/638 cut-off events. [2023-11-19 07:57:12,009 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:12,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 638 events. 409/638 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2459 event pairs, 172 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 1306. Up to 601 conditions per place. [2023-11-19 07:57:12,016 INFO L140 encePairwiseOnDemand]: 209/213 looper letters, 22 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-11-19 07:57:12,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 26 transitions, 108 flow [2023-11-19 07:57:12,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 446 transitions. [2023-11-19 07:57:12,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4187793427230047 [2023-11-19 07:57:12,027 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 446 transitions. [2023-11-19 07:57:12,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 446 transitions. [2023-11-19 07:57:12,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:12,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 446 transitions. [2023-11-19 07:57:12,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.2) internal successors, (446), 5 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,037 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,038 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 446 transitions. [2023-11-19 07:57:12,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 26 transitions, 108 flow [2023-11-19 07:57:12,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:12,042 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 48 flow [2023-11-19 07:57:12,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-11-19 07:57:12,043 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2023-11-19 07:57:12,044 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 48 flow [2023-11-19 07:57:12,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:12,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:12,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:12,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2038951294, now seen corresponding path program 1 times [2023-11-19 07:57:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256214416] [2023-11-19 07:57:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256214416] [2023-11-19 07:57:12,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256214416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:12,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:12,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:12,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743389303] [2023-11-19 07:57:12,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:12,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:12,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:12,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 213 [2023-11-19 07:57:12,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:12,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 213 [2023-11-19 07:57:12,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:12,533 INFO L124 PetriNetUnfolderBase]: 944/1486 cut-off events. [2023-11-19 07:57:12,533 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-19 07:57:12,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1486 events. 944/1486 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7043 event pairs, 318 based on Foata normal form. 99/1585 useless extension candidates. Maximal degree in co-relation 3050. Up to 630 conditions per place. [2023-11-19 07:57:12,545 INFO L140 encePairwiseOnDemand]: 204/213 looper letters, 26 selfloop transitions, 7 changer transitions 19/52 dead transitions. [2023-11-19 07:57:12,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 52 transitions, 228 flow [2023-11-19 07:57:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2023-11-19 07:57:12,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463849765258216 [2023-11-19 07:57:12,548 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 494 transitions. [2023-11-19 07:57:12,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 494 transitions. [2023-11-19 07:57:12,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:12,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 494 transitions. [2023-11-19 07:57:12,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,555 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,555 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 48 flow. Second operand 5 states and 494 transitions. [2023-11-19 07:57:12,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 52 transitions, 228 flow [2023-11-19 07:57:12,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 52 transitions, 220 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:12,558 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 113 flow [2023-11-19 07:57:12,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2023-11-19 07:57:12,559 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-11-19 07:57:12,559 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 113 flow [2023-11-19 07:57:12,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:12,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:12,560 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:12,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1216965066, now seen corresponding path program 1 times [2023-11-19 07:57:12,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38299504] [2023-11-19 07:57:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:12,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:12,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38299504] [2023-11-19 07:57:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38299504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623947452] [2023-11-19 07:57:12,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:12,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:12,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:12,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:12,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 213 [2023-11-19 07:57:12,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:12,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 213 [2023-11-19 07:57:12,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:12,918 INFO L124 PetriNetUnfolderBase]: 748/1217 cut-off events. [2023-11-19 07:57:12,918 INFO L125 PetriNetUnfolderBase]: For 1289/1293 co-relation queries the response was YES. [2023-11-19 07:57:12,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3802 conditions, 1217 events. 748/1217 cut-off events. For 1289/1293 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5661 event pairs, 186 based on Foata normal form. 77/1283 useless extension candidates. Maximal degree in co-relation 3795. Up to 816 conditions per place. [2023-11-19 07:57:12,932 INFO L140 encePairwiseOnDemand]: 209/213 looper letters, 28 selfloop transitions, 3 changer transitions 21/54 dead transitions. [2023-11-19 07:57:12,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 54 transitions, 363 flow [2023-11-19 07:57:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 519 transitions. [2023-11-19 07:57:12,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48732394366197185 [2023-11-19 07:57:12,935 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 519 transitions. [2023-11-19 07:57:12,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 519 transitions. [2023-11-19 07:57:12,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:12,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 519 transitions. [2023-11-19 07:57:12,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,942 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,942 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 113 flow. Second operand 5 states and 519 transitions. [2023-11-19 07:57:12,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 54 transitions, 363 flow [2023-11-19 07:57:12,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 54 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:12,954 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 114 flow [2023-11-19 07:57:12,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-11-19 07:57:12,956 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-11-19 07:57:12,956 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 114 flow [2023-11-19 07:57:12,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:12,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:12,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:12,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:12,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:12,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1216979481, now seen corresponding path program 1 times [2023-11-19 07:57:12,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:12,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543492697] [2023-11-19 07:57:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:12,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:13,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543492697] [2023-11-19 07:57:13,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543492697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:13,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314634878] [2023-11-19 07:57:13,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:13,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:13,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:13,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 213 [2023-11-19 07:57:13,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:13,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 213 [2023-11-19 07:57:13,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:13,421 INFO L124 PetriNetUnfolderBase]: 703/1147 cut-off events. [2023-11-19 07:57:13,422 INFO L125 PetriNetUnfolderBase]: For 1774/1774 co-relation queries the response was YES. [2023-11-19 07:57:13,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 1147 events. 703/1147 cut-off events. For 1774/1774 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5306 event pairs, 69 based on Foata normal form. 75/1222 useless extension candidates. Maximal degree in co-relation 3517. Up to 442 conditions per place. [2023-11-19 07:57:13,432 INFO L140 encePairwiseOnDemand]: 204/213 looper letters, 36 selfloop transitions, 8 changer transitions 25/69 dead transitions. [2023-11-19 07:57:13,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 69 transitions, 438 flow [2023-11-19 07:57:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:57:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 679 transitions. [2023-11-19 07:57:13,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45539906103286387 [2023-11-19 07:57:13,436 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 679 transitions. [2023-11-19 07:57:13,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 679 transitions. [2023-11-19 07:57:13,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:13,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 679 transitions. [2023-11-19 07:57:13,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,444 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,445 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 114 flow. Second operand 7 states and 679 transitions. [2023-11-19 07:57:13,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 69 transitions, 438 flow [2023-11-19 07:57:13,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 69 transitions, 420 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:13,450 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 175 flow [2023-11-19 07:57:13,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=175, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2023-11-19 07:57:13,452 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2023-11-19 07:57:13,452 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 175 flow [2023-11-19 07:57:13,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:13,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:13,453 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:13,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash -928619926, now seen corresponding path program 1 times [2023-11-19 07:57:13,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123341480] [2023-11-19 07:57:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:13,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123341480] [2023-11-19 07:57:13,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123341480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:13,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936964118] [2023-11-19 07:57:13,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:13,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:13,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:13,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-11-19 07:57:13,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:13,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-11-19 07:57:13,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:13,755 INFO L124 PetriNetUnfolderBase]: 584/981 cut-off events. [2023-11-19 07:57:13,755 INFO L125 PetriNetUnfolderBase]: For 2654/2664 co-relation queries the response was YES. [2023-11-19 07:57:13,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3544 conditions, 981 events. 584/981 cut-off events. For 2654/2664 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4470 event pairs, 211 based on Foata normal form. 58/1037 useless extension candidates. Maximal degree in co-relation 3531. Up to 776 conditions per place. [2023-11-19 07:57:13,765 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 36 selfloop transitions, 7 changer transitions 13/58 dead transitions. [2023-11-19 07:57:13,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 461 flow [2023-11-19 07:57:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 514 transitions. [2023-11-19 07:57:13,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48262910798122066 [2023-11-19 07:57:13,768 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 514 transitions. [2023-11-19 07:57:13,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 514 transitions. [2023-11-19 07:57:13,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:13,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 514 transitions. [2023-11-19 07:57:13,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,774 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,774 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 175 flow. Second operand 5 states and 514 transitions. [2023-11-19 07:57:13,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 461 flow [2023-11-19 07:57:13,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 450 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:13,784 INFO L231 Difference]: Finished difference. Result has 46 places, 34 transitions, 253 flow [2023-11-19 07:57:13,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2023-11-19 07:57:13,785 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2023-11-19 07:57:13,785 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 253 flow [2023-11-19 07:57:13,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:13,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:13,786 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:13,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1270810546, now seen corresponding path program 1 times [2023-11-19 07:57:13,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974465086] [2023-11-19 07:57:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:13,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974465086] [2023-11-19 07:57:13,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974465086] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739717135] [2023-11-19 07:57:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:13,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 213 [2023-11-19 07:57:13,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 253 flow. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:13,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:13,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 213 [2023-11-19 07:57:13,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:14,243 INFO L124 PetriNetUnfolderBase]: 574/946 cut-off events. [2023-11-19 07:57:14,243 INFO L125 PetriNetUnfolderBase]: For 2113/2113 co-relation queries the response was YES. [2023-11-19 07:57:14,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3624 conditions, 946 events. 574/946 cut-off events. For 2113/2113 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4207 event pairs, 108 based on Foata normal form. 47/993 useless extension candidates. Maximal degree in co-relation 3608. Up to 370 conditions per place. [2023-11-19 07:57:14,254 INFO L140 encePairwiseOnDemand]: 204/213 looper letters, 41 selfloop transitions, 16 changer transitions 19/76 dead transitions. [2023-11-19 07:57:14,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 76 transitions, 637 flow [2023-11-19 07:57:14,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:57:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:57:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 676 transitions. [2023-11-19 07:57:14,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4533869885982562 [2023-11-19 07:57:14,258 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 676 transitions. [2023-11-19 07:57:14,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 676 transitions. [2023-11-19 07:57:14,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:14,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 676 transitions. [2023-11-19 07:57:14,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.57142857142857) internal successors, (676), 7 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 213.0) internal successors, (1704), 8 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,267 INFO L175 Difference]: Start difference. First operand has 46 places, 34 transitions, 253 flow. Second operand 7 states and 676 transitions. [2023-11-19 07:57:14,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 76 transitions, 637 flow [2023-11-19 07:57:14,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 614 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:14,279 INFO L231 Difference]: Finished difference. Result has 52 places, 39 transitions, 369 flow [2023-11-19 07:57:14,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=369, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2023-11-19 07:57:14,280 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 17 predicate places. [2023-11-19 07:57:14,280 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 369 flow [2023-11-19 07:57:14,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:14,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:57:14,281 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:14,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash 738564166, now seen corresponding path program 1 times [2023-11-19 07:57:14,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808741335] [2023-11-19 07:57:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:14,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:14,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808741335] [2023-11-19 07:57:14,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808741335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:14,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:14,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:14,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887895671] [2023-11-19 07:57:14,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:14,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:14,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:14,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 213 [2023-11-19 07:57:14,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:14,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 213 [2023-11-19 07:57:14,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:14,559 INFO L124 PetriNetUnfolderBase]: 330/580 cut-off events. [2023-11-19 07:57:14,559 INFO L125 PetriNetUnfolderBase]: For 2894/2900 co-relation queries the response was YES. [2023-11-19 07:57:14,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2619 conditions, 580 events. 330/580 cut-off events. For 2894/2900 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2443 event pairs, 73 based on Foata normal form. 40/617 useless extension candidates. Maximal degree in co-relation 2601. Up to 454 conditions per place. [2023-11-19 07:57:14,566 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 59 selfloop transitions, 4 changer transitions 1/66 dead transitions. [2023-11-19 07:57:14,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 66 transitions, 744 flow [2023-11-19 07:57:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:57:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2023-11-19 07:57:14,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49765258215962443 [2023-11-19 07:57:14,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2023-11-19 07:57:14,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2023-11-19 07:57:14,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:14,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2023-11-19 07:57:14,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,574 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 369 flow. Second operand 3 states and 318 transitions. [2023-11-19 07:57:14,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 66 transitions, 744 flow [2023-11-19 07:57:14,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 66 transitions, 732 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:14,601 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 385 flow [2023-11-19 07:57:14,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2023-11-19 07:57:14,605 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 14 predicate places. [2023-11-19 07:57:14,605 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 385 flow [2023-11-19 07:57:14,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:14,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:57:14,607 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:14,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash 117202455, now seen corresponding path program 1 times [2023-11-19 07:57:14,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870062779] [2023-11-19 07:57:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:14,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:14,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870062779] [2023-11-19 07:57:14,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870062779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:14,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:14,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:14,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449829313] [2023-11-19 07:57:14,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:14,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:14,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:14,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:14,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:14,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 213 [2023-11-19 07:57:14,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:14,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 213 [2023-11-19 07:57:14,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:14,888 INFO L124 PetriNetUnfolderBase]: 195/371 cut-off events. [2023-11-19 07:57:14,889 INFO L125 PetriNetUnfolderBase]: For 1611/1620 co-relation queries the response was YES. [2023-11-19 07:57:14,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1849 conditions, 371 events. 195/371 cut-off events. For 1611/1620 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1484 event pairs, 27 based on Foata normal form. 46/414 useless extension candidates. Maximal degree in co-relation 1831. Up to 133 conditions per place. [2023-11-19 07:57:14,894 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 67 selfloop transitions, 7 changer transitions 4/80 dead transitions. [2023-11-19 07:57:14,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 80 transitions, 897 flow [2023-11-19 07:57:14,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:57:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2023-11-19 07:57:14,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49765258215962443 [2023-11-19 07:57:14,897 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 424 transitions. [2023-11-19 07:57:14,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 424 transitions. [2023-11-19 07:57:14,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:14,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 424 transitions. [2023-11-19 07:57:14,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,902 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,903 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 385 flow. Second operand 4 states and 424 transitions. [2023-11-19 07:57:14,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 80 transitions, 897 flow [2023-11-19 07:57:14,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 80 transitions, 883 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:14,910 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 415 flow [2023-11-19 07:57:14,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=415, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-11-19 07:57:14,911 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2023-11-19 07:57:14,912 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 415 flow [2023-11-19 07:57:14,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:14,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:14,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:14,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:57:14,913 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:14,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1449235078, now seen corresponding path program 1 times [2023-11-19 07:57:14,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:14,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256819017] [2023-11-19 07:57:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:14,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:15,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256819017] [2023-11-19 07:57:15,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256819017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:15,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586350675] [2023-11-19 07:57:15,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:15,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:15,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 213 [2023-11-19 07:57:15,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 415 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:15,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 213 [2023-11-19 07:57:15,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:15,188 INFO L124 PetriNetUnfolderBase]: 223/448 cut-off events. [2023-11-19 07:57:15,188 INFO L125 PetriNetUnfolderBase]: For 1931/1945 co-relation queries the response was YES. [2023-11-19 07:57:15,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 448 events. 223/448 cut-off events. For 1931/1945 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1970 event pairs, 69 based on Foata normal form. 17/462 useless extension candidates. Maximal degree in co-relation 2311. Up to 290 conditions per place. [2023-11-19 07:57:15,194 INFO L140 encePairwiseOnDemand]: 209/213 looper letters, 39 selfloop transitions, 9 changer transitions 17/67 dead transitions. [2023-11-19 07:57:15,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 67 transitions, 717 flow [2023-11-19 07:57:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2023-11-19 07:57:15,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788732394366197 [2023-11-19 07:57:15,197 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 510 transitions. [2023-11-19 07:57:15,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 510 transitions. [2023-11-19 07:57:15,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:15,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 510 transitions. [2023-11-19 07:57:15,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,205 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,205 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 415 flow. Second operand 5 states and 510 transitions. [2023-11-19 07:57:15,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 67 transitions, 717 flow [2023-11-19 07:57:15,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 675 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-19 07:57:15,218 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 392 flow [2023-11-19 07:57:15,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2023-11-19 07:57:15,220 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2023-11-19 07:57:15,221 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 392 flow [2023-11-19 07:57:15,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:57:15,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:15,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1879627221, now seen corresponding path program 1 times [2023-11-19 07:57:15,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790875269] [2023-11-19 07:57:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:15,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790875269] [2023-11-19 07:57:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790875269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797367671] [2023-11-19 07:57:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:15,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:15,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:15,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 213 [2023-11-19 07:57:15,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:15,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 213 [2023-11-19 07:57:15,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:15,541 INFO L124 PetriNetUnfolderBase]: 153/305 cut-off events. [2023-11-19 07:57:15,541 INFO L125 PetriNetUnfolderBase]: For 1376/1394 co-relation queries the response was YES. [2023-11-19 07:57:15,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 305 events. 153/305 cut-off events. For 1376/1394 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1232 event pairs, 20 based on Foata normal form. 31/331 useless extension candidates. Maximal degree in co-relation 1493. Up to 115 conditions per place. [2023-11-19 07:57:15,544 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 28 selfloop transitions, 10 changer transitions 34/73 dead transitions. [2023-11-19 07:57:15,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 73 transitions, 847 flow [2023-11-19 07:57:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:15,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:57:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 520 transitions. [2023-11-19 07:57:15,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48826291079812206 [2023-11-19 07:57:15,548 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 520 transitions. [2023-11-19 07:57:15,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 520 transitions. [2023-11-19 07:57:15,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:15,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 520 transitions. [2023-11-19 07:57:15,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,555 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,555 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 392 flow. Second operand 5 states and 520 transitions. [2023-11-19 07:57:15,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 73 transitions, 847 flow [2023-11-19 07:57:15,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 73 transitions, 757 flow, removed 24 selfloop flow, removed 7 redundant places. [2023-11-19 07:57:15,569 INFO L231 Difference]: Finished difference. Result has 51 places, 31 transitions, 251 flow [2023-11-19 07:57:15,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2023-11-19 07:57:15,570 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2023-11-19 07:57:15,570 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 251 flow [2023-11-19 07:57:15,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.0) internal successors, (495), 5 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:57:15,572 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:15,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -957632980, now seen corresponding path program 1 times [2023-11-19 07:57:15,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859790951] [2023-11-19 07:57:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:15,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:15,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:15,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859790951] [2023-11-19 07:57:15,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859790951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:15,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:15,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:15,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570107439] [2023-11-19 07:57:15,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:15,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:15,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:15,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:15,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:15,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 213 [2023-11-19 07:57:15,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:15,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 213 [2023-11-19 07:57:15,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:15,903 INFO L124 PetriNetUnfolderBase]: 46/125 cut-off events. [2023-11-19 07:57:15,903 INFO L125 PetriNetUnfolderBase]: For 364/364 co-relation queries the response was YES. [2023-11-19 07:57:15,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 125 events. 46/125 cut-off events. For 364/364 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 439 event pairs, 3 based on Foata normal form. 1/126 useless extension candidates. Maximal degree in co-relation 629. Up to 69 conditions per place. [2023-11-19 07:57:15,905 INFO L140 encePairwiseOnDemand]: 204/213 looper letters, 23 selfloop transitions, 7 changer transitions 25/55 dead transitions. [2023-11-19 07:57:15,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 546 flow [2023-11-19 07:57:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2023-11-19 07:57:15,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4428794992175274 [2023-11-19 07:57:15,909 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2023-11-19 07:57:15,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2023-11-19 07:57:15,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:15,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2023-11-19 07:57:15,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,917 INFO L175 Difference]: Start difference. First operand has 51 places, 31 transitions, 251 flow. Second operand 6 states and 566 transitions. [2023-11-19 07:57:15,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 546 flow [2023-11-19 07:57:15,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 426 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-11-19 07:57:15,922 INFO L231 Difference]: Finished difference. Result has 48 places, 24 transitions, 151 flow [2023-11-19 07:57:15,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=151, PETRI_PLACES=48, PETRI_TRANSITIONS=24} [2023-11-19 07:57:15,923 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2023-11-19 07:57:15,923 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 24 transitions, 151 flow [2023-11-19 07:57:15,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.0) internal successors, (546), 6 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:15,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:57:15,925 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:57:15,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash -65602948, now seen corresponding path program 2 times [2023-11-19 07:57:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450047563] [2023-11-19 07:57:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:16,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450047563] [2023-11-19 07:57:16,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450047563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:16,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155456962] [2023-11-19 07:57:16,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:16,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 213 [2023-11-19 07:57:16,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 24 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:16,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:16,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 213 [2023-11-19 07:57:16,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:16,149 INFO L124 PetriNetUnfolderBase]: 15/47 cut-off events. [2023-11-19 07:57:16,153 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-11-19 07:57:16,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 47 events. 15/47 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 1 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 207. Up to 17 conditions per place. [2023-11-19 07:57:16,154 INFO L140 encePairwiseOnDemand]: 208/213 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-11-19 07:57:16,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 288 flow [2023-11-19 07:57:16,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2023-11-19 07:57:16,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4569640062597809 [2023-11-19 07:57:16,157 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2023-11-19 07:57:16,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2023-11-19 07:57:16,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:16,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2023-11-19 07:57:16,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:16,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:16,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 213.0) internal successors, (1491), 7 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:16,164 INFO L175 Difference]: Start difference. First operand has 48 places, 24 transitions, 151 flow. Second operand 6 states and 584 transitions. [2023-11-19 07:57:16,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 288 flow [2023-11-19 07:57:16,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 228 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-11-19 07:57:16,167 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-11-19 07:57:16,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=213, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-11-19 07:57:16,168 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2023-11-19 07:57:16,168 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-11-19 07:57:16,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.6) internal successors, (483), 5 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:16,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-11-19 07:57:16,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-11-19 07:57:16,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-11-19 07:57:16,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-11-19 07:57:16,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-11-19 07:57:16,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-11-19 07:57:16,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-11-19 07:57:16,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-11-19 07:57:16,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-11-19 07:57:16,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-11-19 07:57:16,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-11-19 07:57:16,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:57:16,174 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:16,178 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:57:16,178 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:57:16,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:57:16 BasicIcfg [2023-11-19 07:57:16,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:57:16,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:57:16,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:57:16,184 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:57:16,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:06" (3/4) ... [2023-11-19 07:57:16,186 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:57:16,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:57:16,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:57:16,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:57:16,196 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:57:16,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:57:16,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:57:16,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:57:16,301 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:57:16,302 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:57:16,302 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:57:16,303 INFO L158 Benchmark]: Toolchain (without parser) took 11006.32ms. Allocated memory was 163.6MB in the beginning and 243.3MB in the end (delta: 79.7MB). Free memory was 119.0MB in the beginning and 82.1MB in the end (delta: 36.9MB). Peak memory consumption was 118.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,303 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:57:16,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.11ms. Allocated memory is still 163.6MB. Free memory was 118.6MB in the beginning and 98.5MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.53ms. Allocated memory is still 163.6MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,304 INFO L158 Benchmark]: Boogie Preprocessor took 67.23ms. Allocated memory is still 163.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,305 INFO L158 Benchmark]: RCFGBuilder took 566.03ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 121.7MB in the end (delta: -27.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,305 INFO L158 Benchmark]: TraceAbstraction took 9515.77ms. Allocated memory was 163.6MB in the beginning and 243.3MB in the end (delta: 79.7MB). Free memory was 121.7MB in the beginning and 86.3MB in the end (delta: 35.4MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,306 INFO L158 Benchmark]: Witness Printer took 118.81ms. Allocated memory is still 243.3MB. Free memory was 86.3MB in the beginning and 82.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:57:16,308 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.11ms. Allocated memory is still 163.6MB. Free memory was 118.6MB in the beginning and 98.5MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.53ms. Allocated memory is still 163.6MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.23ms. Allocated memory is still 163.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 566.03ms. Allocated memory is still 163.6MB. Free memory was 94.5MB in the beginning and 121.7MB in the end (delta: -27.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9515.77ms. Allocated memory was 163.6MB in the beginning and 243.3MB in the end (delta: 79.7MB). Free memory was 121.7MB in the beginning and 86.3MB in the end (delta: 35.4MB). Peak memory consumption was 114.9MB. Max. memory is 16.1GB. * Witness Printer took 118.81ms. Allocated memory is still 243.3MB. Free memory was 86.3MB in the beginning and 82.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 106 PlacesBefore, 35 PlacesAfterwards, 99 TransitionsBefore, 26 TransitionsAfterwards, 2320 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 106 TotalNumberOfCompositions, 3497 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2012, independent: 1928, independent conditional: 0, independent unconditional: 1928, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1233, independent: 1217, independent conditional: 0, independent unconditional: 1217, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2012, independent: 711, independent conditional: 0, independent unconditional: 711, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 1233, unknown conditional: 0, unknown unconditional: 1233] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 133 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 507 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 183 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1174 IncrementalHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 79 mSDtfsCounter, 1174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=9, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:57:16,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfbe2c18-ba10-4e01-a61a-5531f117d5f9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE