./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 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_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:29:17,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:29:18,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-08 16:29:18,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:29:18,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:29:18,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:29:18,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:29:18,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:29:18,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:29:18,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:29:18,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:29:18,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:29:18,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:29:18,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:29:18,165 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:29:18,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:29:18,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:29:18,167 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:29:18,167 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:29:18,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:29:18,171 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 16:29:18,172 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 16:29:18,172 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 16:29:18,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:29:18,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:29:18,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:29:18,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:29:18,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:29:18,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:29:18,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:29:18,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:29:18,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:29:18,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:29:18,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:29:18,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:29:18,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:29:18,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:29:18,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:29:18,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:29:18,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:29:18,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:29:18,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:29:18,197 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_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-08 16:29:18,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:29:18,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:29:18,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:29:18,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:29:18,603 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:29:18,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i Unable to find full path for "g++" [2024-11-08 16:29:20,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:29:21,278 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:29:21,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-08 16:29:21,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/data/52f54721f/19d153675aaa4dcda04964f0c73cf076/FLAGb48c300c5 [2024-11-08 16:29:21,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/data/52f54721f/19d153675aaa4dcda04964f0c73cf076 [2024-11-08 16:29:21,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:29:21,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:29:21,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:29:21,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:29:21,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:29:21,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:29:21" (1/1) ... [2024-11-08 16:29:21,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db27820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:21, skipping insertion in model container [2024-11-08 16:29:21,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:29:21" (1/1) ... [2024-11-08 16:29:21,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:29:21,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:29:21,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:29:22,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:29:22,146 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:29:22,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22 WrapperNode [2024-11-08 16:29:22,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:29:22,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:29:22,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:29:22,150 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:29:22,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,188 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,227 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 117 [2024-11-08 16:29:22,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:29:22,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:29:22,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:29:22,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:29:22,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,269 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-08 16:29:22,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:29:22,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:29:22,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:29:22,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:29:22,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (1/1) ... [2024-11-08 16:29:22,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:29:22,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:29:22,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:29:22,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:29:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-08 16:29:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-08 16:29:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:29:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:29:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:29:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:29:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:29:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:29:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:29:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:29:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:29:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:29:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:29:22,389 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:29:22,584 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:29:22,586 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:29:23,137 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:29:23,138 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:29:23,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:29:23,517 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:29:23,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:29:23 BoogieIcfgContainer [2024-11-08 16:29:23,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:29:23,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:29:23,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:29:23,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:29:23,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:29:21" (1/3) ... [2024-11-08 16:29:23,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a45050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:29:23, skipping insertion in model container [2024-11-08 16:29:23,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:29:22" (2/3) ... [2024-11-08 16:29:23,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a45050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:29:23, skipping insertion in model container [2024-11-08 16:29:23,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:29:23" (3/3) ... [2024-11-08 16:29:23,538 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-08 16:29:23,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:29:23,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-11-08 16:29:23,568 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:29:23,656 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:29:23,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 202 flow [2024-11-08 16:29:23,759 INFO L124 PetriNetUnfolderBase]: 8/92 cut-off events. [2024-11-08 16:29:23,759 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:29:23,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 92 events. 8/92 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2024-11-08 16:29:23,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 202 flow [2024-11-08 16:29:23,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 194 flow [2024-11-08 16:29:23,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:29:23,793 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@46aeef8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:29:23,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 16:29:23,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:29:23,809 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-08 16:29:23,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:29:23,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:23,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:23,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:23,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1643910906, now seen corresponding path program 1 times [2024-11-08 16:29:23,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810656967] [2024-11-08 16:29:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:24,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:24,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810656967] [2024-11-08 16:29:24,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810656967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:24,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:24,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:29:24,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241558356] [2024-11-08 16:29:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:24,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:29:24,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:29:24,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:29:24,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2024-11-08 16:29:24,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:24,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:24,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2024-11-08 16:29:24,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:26,824 INFO L124 PetriNetUnfolderBase]: 5526/9846 cut-off events. [2024-11-08 16:29:26,825 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 16:29:26,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18561 conditions, 9846 events. 5526/9846 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 69860 event pairs, 1275 based on Foata normal form. 610/10136 useless extension candidates. Maximal degree in co-relation 18498. Up to 5197 conditions per place. [2024-11-08 16:29:26,918 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 101 selfloop transitions, 19 changer transitions 0/146 dead transitions. [2024-11-08 16:29:26,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 547 flow [2024-11-08 16:29:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:29:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:29:26,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2024-11-08 16:29:26,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5872340425531914 [2024-11-08 16:29:26,942 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 194 flow. Second operand 5 states and 276 transitions. [2024-11-08 16:29:26,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 547 flow [2024-11-08 16:29:26,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 146 transitions, 537 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-08 16:29:26,960 INFO L231 Difference]: Finished difference. Result has 90 places, 91 transitions, 286 flow [2024-11-08 16:29:26,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=286, PETRI_PLACES=90, PETRI_TRANSITIONS=91} [2024-11-08 16:29:26,972 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-08 16:29:26,972 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 91 transitions, 286 flow [2024-11-08 16:29:26,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:26,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:26,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:26,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:29:26,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:26,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1778297083, now seen corresponding path program 1 times [2024-11-08 16:29:26,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:26,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996842069] [2024-11-08 16:29:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:27,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996842069] [2024-11-08 16:29:27,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996842069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:27,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:27,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:29:27,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490983067] [2024-11-08 16:29:27,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:27,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:29:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:27,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:29:27,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:29:27,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2024-11-08 16:29:27,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:27,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:27,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2024-11-08 16:29:27,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:28,510 INFO L124 PetriNetUnfolderBase]: 2893/6063 cut-off events. [2024-11-08 16:29:28,511 INFO L125 PetriNetUnfolderBase]: For 1450/1558 co-relation queries the response was YES. [2024-11-08 16:29:28,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12927 conditions, 6063 events. 2893/6063 cut-off events. For 1450/1558 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 44154 event pairs, 781 based on Foata normal form. 220/6270 useless extension candidates. Maximal degree in co-relation 8399. Up to 3317 conditions per place. [2024-11-08 16:29:28,631 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 101 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-08 16:29:28,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 142 transitions, 675 flow [2024-11-08 16:29:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:29:28,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:29:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-11-08 16:29:28,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904255319148937 [2024-11-08 16:29:28,635 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 286 flow. Second operand 4 states and 222 transitions. [2024-11-08 16:29:28,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 142 transitions, 675 flow [2024-11-08 16:29:28,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:29:28,675 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 322 flow [2024-11-08 16:29:28,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-11-08 16:29:28,677 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-08 16:29:28,678 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 322 flow [2024-11-08 16:29:28,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:28,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:28,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:28,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:29:28,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:28,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2007176012, now seen corresponding path program 1 times [2024-11-08 16:29:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052528223] [2024-11-08 16:29:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:28,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:29,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:29,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052528223] [2024-11-08 16:29:29,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052528223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:29,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:29,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:29:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767346785] [2024-11-08 16:29:29,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:29,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:29:29,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:29,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:29:29,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:29:29,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2024-11-08 16:29:29,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:29,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:29,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2024-11-08 16:29:29,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:30,589 INFO L124 PetriNetUnfolderBase]: 3323/6429 cut-off events. [2024-11-08 16:29:30,589 INFO L125 PetriNetUnfolderBase]: For 2381/2381 co-relation queries the response was YES. [2024-11-08 16:29:30,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15207 conditions, 6429 events. 3323/6429 cut-off events. For 2381/2381 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 44327 event pairs, 1615 based on Foata normal form. 100/6515 useless extension candidates. Maximal degree in co-relation 9766. Up to 3061 conditions per place. [2024-11-08 16:29:30,641 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 113 selfloop transitions, 32 changer transitions 0/171 dead transitions. [2024-11-08 16:29:30,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 171 transitions, 865 flow [2024-11-08 16:29:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:29:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:29:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 297 transitions. [2024-11-08 16:29:30,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2024-11-08 16:29:30,645 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 322 flow. Second operand 6 states and 297 transitions. [2024-11-08 16:29:30,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 171 transitions, 865 flow [2024-11-08 16:29:30,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 171 transitions, 864 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:29:30,673 INFO L231 Difference]: Finished difference. Result has 100 places, 110 transitions, 526 flow [2024-11-08 16:29:30,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=100, PETRI_TRANSITIONS=110} [2024-11-08 16:29:30,677 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2024-11-08 16:29:30,678 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 110 transitions, 526 flow [2024-11-08 16:29:30,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:30,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:30,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:30,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:29:30,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:30,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash 397928239, now seen corresponding path program 1 times [2024-11-08 16:29:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:30,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090020575] [2024-11-08 16:29:30,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:30,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:30,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:30,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090020575] [2024-11-08 16:29:30,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090020575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:30,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:30,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:29:30,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135868435] [2024-11-08 16:29:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:30,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:29:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:29:30,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:29:30,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2024-11-08 16:29:30,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 110 transitions, 526 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:30,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:30,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2024-11-08 16:29:30,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:32,317 INFO L124 PetriNetUnfolderBase]: 3359/6476 cut-off events. [2024-11-08 16:29:32,318 INFO L125 PetriNetUnfolderBase]: For 6240/6240 co-relation queries the response was YES. [2024-11-08 16:29:32,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17293 conditions, 6476 events. 3359/6476 cut-off events. For 6240/6240 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 44956 event pairs, 834 based on Foata normal form. 44/6512 useless extension candidates. Maximal degree in co-relation 9821. Up to 3763 conditions per place. [2024-11-08 16:29:32,389 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 125 selfloop transitions, 48 changer transitions 0/199 dead transitions. [2024-11-08 16:29:32,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 199 transitions, 1337 flow [2024-11-08 16:29:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:29:32,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:29:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2024-11-08 16:29:32,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.551063829787234 [2024-11-08 16:29:32,392 INFO L175 Difference]: Start difference. First operand has 100 places, 110 transitions, 526 flow. Second operand 5 states and 259 transitions. [2024-11-08 16:29:32,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 199 transitions, 1337 flow [2024-11-08 16:29:32,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 199 transitions, 1299 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-08 16:29:32,429 INFO L231 Difference]: Finished difference. Result has 106 places, 132 transitions, 877 flow [2024-11-08 16:29:32,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=877, PETRI_PLACES=106, PETRI_TRANSITIONS=132} [2024-11-08 16:29:32,432 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 16 predicate places. [2024-11-08 16:29:32,435 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 132 transitions, 877 flow [2024-11-08 16:29:32,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:32,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:32,436 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:32,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:29:32,437 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:32,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:32,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1707016101, now seen corresponding path program 1 times [2024-11-08 16:29:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:32,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992734625] [2024-11-08 16:29:32,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:32,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:32,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992734625] [2024-11-08 16:29:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992734625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:32,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:32,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:29:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56281325] [2024-11-08 16:29:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:32,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:29:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:32,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:29:32,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:29:32,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2024-11-08 16:29:32,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 132 transitions, 877 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:32,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:32,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2024-11-08 16:29:32,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:33,732 INFO L124 PetriNetUnfolderBase]: 1798/3969 cut-off events. [2024-11-08 16:29:33,732 INFO L125 PetriNetUnfolderBase]: For 4502/4546 co-relation queries the response was YES. [2024-11-08 16:29:33,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11606 conditions, 3969 events. 1798/3969 cut-off events. For 4502/4546 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 27418 event pairs, 577 based on Foata normal form. 407/4307 useless extension candidates. Maximal degree in co-relation 8461. Up to 1812 conditions per place. [2024-11-08 16:29:33,768 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 96 selfloop transitions, 21 changer transitions 0/164 dead transitions. [2024-11-08 16:29:33,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 1234 flow [2024-11-08 16:29:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:29:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:29:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 220 transitions. [2024-11-08 16:29:33,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5851063829787234 [2024-11-08 16:29:33,770 INFO L175 Difference]: Start difference. First operand has 106 places, 132 transitions, 877 flow. Second operand 4 states and 220 transitions. [2024-11-08 16:29:33,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 1234 flow [2024-11-08 16:29:33,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 164 transitions, 1197 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-08 16:29:33,831 INFO L231 Difference]: Finished difference. Result has 109 places, 137 transitions, 886 flow [2024-11-08 16:29:33,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=886, PETRI_PLACES=109, PETRI_TRANSITIONS=137} [2024-11-08 16:29:33,832 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2024-11-08 16:29:33,833 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 137 transitions, 886 flow [2024-11-08 16:29:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:33,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:33,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:33,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:29:33,834 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:33,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:33,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1088780335, now seen corresponding path program 1 times [2024-11-08 16:29:33,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:33,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952822058] [2024-11-08 16:29:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:33,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:34,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:34,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952822058] [2024-11-08 16:29:34,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952822058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:34,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:34,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:29:34,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42278539] [2024-11-08 16:29:34,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:34,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:29:34,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:34,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:29:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:29:34,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2024-11-08 16:29:34,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 137 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:34,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:34,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2024-11-08 16:29:34,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:35,174 INFO L124 PetriNetUnfolderBase]: 1265/3035 cut-off events. [2024-11-08 16:29:35,175 INFO L125 PetriNetUnfolderBase]: For 3833/3854 co-relation queries the response was YES. [2024-11-08 16:29:35,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9597 conditions, 3035 events. 1265/3035 cut-off events. For 3833/3854 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 19632 event pairs, 326 based on Foata normal form. 86/3113 useless extension candidates. Maximal degree in co-relation 6872. Up to 2164 conditions per place. [2024-11-08 16:29:35,199 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 83 selfloop transitions, 8 changer transitions 0/127 dead transitions. [2024-11-08 16:29:35,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 127 transitions, 953 flow [2024-11-08 16:29:35,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:29:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:29:35,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-08 16:29:35,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5026595744680851 [2024-11-08 16:29:35,203 INFO L175 Difference]: Start difference. First operand has 109 places, 137 transitions, 886 flow. Second operand 4 states and 189 transitions. [2024-11-08 16:29:35,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 127 transitions, 953 flow [2024-11-08 16:29:35,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 828 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 16:29:35,227 INFO L231 Difference]: Finished difference. Result has 96 places, 112 transitions, 609 flow [2024-11-08 16:29:35,228 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=96, PETRI_TRANSITIONS=112} [2024-11-08 16:29:35,229 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2024-11-08 16:29:35,229 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 112 transitions, 609 flow [2024-11-08 16:29:35,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:35,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:35,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:35,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:29:35,231 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:35,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash -219360816, now seen corresponding path program 1 times [2024-11-08 16:29:35,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:35,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779091574] [2024-11-08 16:29:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:35,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779091574] [2024-11-08 16:29:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779091574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:35,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:35,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:29:35,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025047808] [2024-11-08 16:29:35,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:35,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:29:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:29:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:29:35,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 94 [2024-11-08 16:29:35,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 112 transitions, 609 flow. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 6 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:35,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:35,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 94 [2024-11-08 16:29:35,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:36,202 INFO L124 PetriNetUnfolderBase]: 808/2035 cut-off events. [2024-11-08 16:29:36,202 INFO L125 PetriNetUnfolderBase]: For 2016/2016 co-relation queries the response was YES. [2024-11-08 16:29:36,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5894 conditions, 2035 events. 808/2035 cut-off events. For 2016/2016 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11905 event pairs, 294 based on Foata normal form. 56/2085 useless extension candidates. Maximal degree in co-relation 4471. Up to 1095 conditions per place. [2024-11-08 16:29:36,217 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 99 selfloop transitions, 7 changer transitions 0/142 dead transitions. [2024-11-08 16:29:36,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 142 transitions, 999 flow [2024-11-08 16:29:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:29:36,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:29:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-08 16:29:36,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.526595744680851 [2024-11-08 16:29:36,220 INFO L175 Difference]: Start difference. First operand has 96 places, 112 transitions, 609 flow. Second operand 4 states and 198 transitions. [2024-11-08 16:29:36,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 142 transitions, 999 flow [2024-11-08 16:29:36,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 954 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 16:29:36,232 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 577 flow [2024-11-08 16:29:36,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=577, PETRI_PLACES=95, PETRI_TRANSITIONS=109} [2024-11-08 16:29:36,234 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-08 16:29:36,234 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 577 flow [2024-11-08 16:29:36,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 6 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:36,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:36,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:36,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:29:36,236 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:36,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:36,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1949243083, now seen corresponding path program 1 times [2024-11-08 16:29:36,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:36,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712084750] [2024-11-08 16:29:36,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:36,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:36,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:36,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712084750] [2024-11-08 16:29:36,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712084750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:36,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:36,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:29:36,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141448339] [2024-11-08 16:29:36,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:36,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:29:36,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:29:36,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:29:36,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 94 [2024-11-08 16:29:36,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 577 flow. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:36,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:36,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 94 [2024-11-08 16:29:36,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:37,008 INFO L124 PetriNetUnfolderBase]: 875/2032 cut-off events. [2024-11-08 16:29:37,008 INFO L125 PetriNetUnfolderBase]: For 1649/1649 co-relation queries the response was YES. [2024-11-08 16:29:37,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 2032 events. 875/2032 cut-off events. For 1649/1649 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11470 event pairs, 513 based on Foata normal form. 12/2033 useless extension candidates. Maximal degree in co-relation 3107. Up to 1275 conditions per place. [2024-11-08 16:29:37,029 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 89 selfloop transitions, 43 changer transitions 0/150 dead transitions. [2024-11-08 16:29:37,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 150 transitions, 1059 flow [2024-11-08 16:29:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:29:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:29:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 251 transitions. [2024-11-08 16:29:37,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4450354609929078 [2024-11-08 16:29:37,032 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 577 flow. Second operand 6 states and 251 transitions. [2024-11-08 16:29:37,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 150 transitions, 1059 flow [2024-11-08 16:29:37,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 150 transitions, 1033 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:29:37,090 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 696 flow [2024-11-08 16:29:37,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=696, PETRI_PLACES=94, PETRI_TRANSITIONS=115} [2024-11-08 16:29:37,093 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-08 16:29:37,094 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 696 flow [2024-11-08 16:29:37,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:37,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:29:37,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:37,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:29:37,095 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-08 16:29:37,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:29:37,099 INFO L85 PathProgramCache]: Analyzing trace with hash 725235584, now seen corresponding path program 1 times [2024-11-08 16:29:37,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:29:37,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012108699] [2024-11-08 16:29:37,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:29:37,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:29:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:29:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:29:37,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:29:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012108699] [2024-11-08 16:29:37,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012108699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:29:37,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:29:37,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:29:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830660096] [2024-11-08 16:29:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:29:37,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:29:37,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:29:37,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:29:37,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:29:37,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 94 [2024-11-08 16:29:37,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 115 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:37,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:29:37,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 94 [2024-11-08 16:29:37,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:29:37,760 INFO L124 PetriNetUnfolderBase]: 800/1946 cut-off events. [2024-11-08 16:29:37,760 INFO L125 PetriNetUnfolderBase]: For 1779/1779 co-relation queries the response was YES. [2024-11-08 16:29:37,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 1946 events. 800/1946 cut-off events. For 1779/1779 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11208 event pairs, 670 based on Foata normal form. 1/1931 useless extension candidates. Maximal degree in co-relation 988. Up to 1659 conditions per place. [2024-11-08 16:29:37,770 INFO L140 encePairwiseOnDemand]: 92/94 looper letters, 0 selfloop transitions, 0 changer transitions 114/114 dead transitions. [2024-11-08 16:29:37,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 114 transitions, 848 flow [2024-11-08 16:29:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:29:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:29:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 139 transitions. [2024-11-08 16:29:37,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4929078014184397 [2024-11-08 16:29:37,772 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 696 flow. Second operand 3 states and 139 transitions. [2024-11-08 16:29:37,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 114 transitions, 848 flow [2024-11-08 16:29:37,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 114 transitions, 847 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:29:37,782 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-08 16:29:37,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-08 16:29:37,784 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-08 16:29:37,784 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-08 16:29:37,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:29:37,788 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-08 16:29:37,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-08 16:29:37,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-08 16:29:37,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 7 remaining) [2024-11-08 16:29:37,790 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (2 of 7 remaining) [2024-11-08 16:29:37,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-08 16:29:37,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-11-08 16:29:37,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:29:37,792 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:29:37,797 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:29:37,798 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:29:37,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:29:37 BasicIcfg [2024-11-08 16:29:37,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:29:37,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:29:37,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:29:37,807 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:29:37,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:29:23" (3/4) ... [2024-11-08 16:29:37,815 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:29:37,821 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-08 16:29:37,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 16:29:37,827 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-08 16:29:37,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 16:29:37,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 16:29:37,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 16:29:37,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:29:37,941 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:29:37,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:29:37,942 INFO L158 Benchmark]: Toolchain (without parser) took 16601.79ms. Allocated memory was 132.1MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 89.5MB in the beginning and 931.4MB in the end (delta: -842.0MB). Peak memory consumption was 304.1MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,943 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:29:37,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.13ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 66.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.26ms. Allocated memory is still 132.1MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,944 INFO L158 Benchmark]: Boogie Preprocessor took 62.06ms. Allocated memory is still 132.1MB. Free memory was 63.9MB in the beginning and 61.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,945 INFO L158 Benchmark]: RCFGBuilder took 1227.58ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 107.0MB in the end (delta: -45.7MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,947 INFO L158 Benchmark]: TraceAbstraction took 14279.47ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 106.8MB in the beginning and 936.7MB in the end (delta: -829.9MB). Peak memory consumption was 277.4MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,950 INFO L158 Benchmark]: Witness Printer took 134.59ms. Allocated memory is still 1.3GB. Free memory was 935.6MB in the beginning and 931.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:29:37,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.13ms. Allocated memory is still 132.1MB. Free memory was 89.0MB in the beginning and 66.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.26ms. Allocated memory is still 132.1MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.06ms. Allocated memory is still 132.1MB. Free memory was 63.9MB in the beginning and 61.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1227.58ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 61.3MB in the beginning and 107.0MB in the end (delta: -45.7MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 14279.47ms. Allocated memory was 167.8MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 106.8MB in the beginning and 936.7MB in the end (delta: -829.9MB). Peak memory consumption was 277.4MB. Max. memory is 16.1GB. * Witness Printer took 134.59ms. Allocated memory is still 1.3GB. Free memory was 935.6MB in the beginning and 931.4MB 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: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 707]: 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 5 procedures, 117 locations, 7 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: 14.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 542 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1394 IncrementalHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 15 mSDtfsCounter, 1394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=5, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 1248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:29:38,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ac7297-3b80-400c-b74c-f28af7415a03/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE