./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme --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 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:05,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:05,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 10:49:05,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:05,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:05,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:05,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:05,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:05,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:49:05,615 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:49:05,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:05,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:05,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:05,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:05,620 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:05,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:05,621 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:05,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:05,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:05,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:05,623 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 10:49:05,624 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 10:49:05,624 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 10:49:05,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:05,625 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:49:05,626 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:05,626 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:05,627 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:05,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:05,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:05,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:49:05,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:05,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:05,631 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:05,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:05,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:05,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:05,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:05,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:05,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:05,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:05,633 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_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d [2023-11-26 10:49:05,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:05,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:05,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:05,979 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:05,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:05,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2023-11-26 10:49:09,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:09,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:09,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2023-11-26 10:49:09,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/data/d7fc875ad/ebda612a252c4be2ba93f543c735ffb8/FLAGe5708a83a [2023-11-26 10:49:09,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/data/d7fc875ad/ebda612a252c4be2ba93f543c735ffb8 [2023-11-26 10:49:09,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:09,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:09,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:09,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:09,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:09,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2154e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:09, skipping insertion in model container [2023-11-26 10:49:09,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:09" (1/1) ... [2023-11-26 10:49:09,441 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:09,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:09,869 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:09,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:10,017 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:10,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10 WrapperNode [2023-11-26 10:49:10,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:10,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:10,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:10,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:10,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,118 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-11-26 10:49:10,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:10,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:10,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:10,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:10,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,167 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 1, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0]. [2023-11-26 10:49:10,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:10,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:10,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:10,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:10,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (1/1) ... [2023-11-26 10:49:10,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:10,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:10,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:10,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:10,316 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-11-26 10:49:10,316 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-11-26 10:49:10,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:49:10,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:49:10,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:49:10,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:49:10,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:49:10,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:10,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:49:10,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:49:10,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:49:10,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:49:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:49:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:49:10,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:49:10,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:10,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:10,324 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:49:10,488 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:10,491 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:10,821 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:11,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:11,019 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:49:11,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:11 BoogieIcfgContainer [2023-11-26 10:49:11,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:11,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:11,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:11,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:11,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:09" (1/3) ... [2023-11-26 10:49:11,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e1c83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:11, skipping insertion in model container [2023-11-26 10:49:11,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:10" (2/3) ... [2023-11-26 10:49:11,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e1c83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:11, skipping insertion in model container [2023-11-26 10:49:11,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:11" (3/3) ... [2023-11-26 10:49:11,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2023-11-26 10:49:11,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:11,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 10:49:11,055 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:49:11,103 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:49:11,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 60 flow [2023-11-26 10:49:11,180 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2023-11-26 10:49:11,180 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:11,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 3/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-11-26 10:49:11,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 60 flow [2023-11-26 10:49:11,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 57 flow [2023-11-26 10:49:11,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:11,229 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b9d5b0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:11,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-26 10:49:11,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:49:11,234 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-26 10:49:11,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:11,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:11,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 10:49:11,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2023-11-26 10:49:11,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash 7263, now seen corresponding path program 1 times [2023-11-26 10:49:11,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:11,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292141824] [2023-11-26 10:49:11,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:11,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:11,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292141824] [2023-11-26 10:49:11,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292141824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:11,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:11,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:49:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356800413] [2023-11-26 10:49:11,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:11,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:11,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:11,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:11,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:11,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2023-11-26 10:49:11,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:11,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:11,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2023-11-26 10:49:11,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:11,691 INFO L124 PetriNetUnfolderBase]: 15/57 cut-off events. [2023-11-26 10:49:11,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:11,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 57 events. 15/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 9/65 useless extension candidates. Maximal degree in co-relation 90. Up to 31 conditions per place. [2023-11-26 10:49:11,693 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 17 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-11-26 10:49:11,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 99 flow [2023-11-26 10:49:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2023-11-26 10:49:11,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2023-11-26 10:49:11,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 59 transitions. [2023-11-26 10:49:11,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 59 transitions. [2023-11-26 10:49:11,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:11,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 59 transitions. [2023-11-26 10:49:11,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:11,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:11,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:11,724 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 57 flow. Second operand 3 states and 59 transitions. [2023-11-26 10:49:11,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 99 flow [2023-11-26 10:49:11,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:49:11,731 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2023-11-26 10:49:11,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2023-11-26 10:49:11,741 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2023-11-26 10:49:11,741 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2023-11-26 10:49:11,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:11,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:11,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-26 10:49:11,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:11,743 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2023-11-26 10:49:11,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 7264, now seen corresponding path program 1 times [2023-11-26 10:49:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:11,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579515477] [2023-11-26 10:49:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:11,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:11,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579515477] [2023-11-26 10:49:11,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579515477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:11,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:11,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:49:11,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974339859] [2023-11-26 10:49:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:11,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:11,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:11,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:11,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:11,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 28 [2023-11-26 10:49:12,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:12,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 28 [2023-11-26 10:49:12,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:12,054 INFO L124 PetriNetUnfolderBase]: 15/56 cut-off events. [2023-11-26 10:49:12,057 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:49:12,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 56 events. 15/56 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 1/56 useless extension candidates. Maximal degree in co-relation 98. Up to 31 conditions per place. [2023-11-26 10:49:12,059 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 16 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-11-26 10:49:12,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 28 transitions, 98 flow [2023-11-26 10:49:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:12,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2023-11-26 10:49:12,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2023-11-26 10:49:12,064 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 55 transitions. [2023-11-26 10:49:12,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 55 transitions. [2023-11-26 10:49:12,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:12,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 55 transitions. [2023-11-26 10:49:12,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,071 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 55 transitions. [2023-11-26 10:49:12,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 28 transitions, 98 flow [2023-11-26 10:49:12,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:12,074 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 48 flow [2023-11-26 10:49:12,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2023-11-26 10:49:12,075 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-26 10:49:12,076 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 48 flow [2023-11-26 10:49:12,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:12,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 10:49:12,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:49:12,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2023-11-26 10:49:12,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:12,078 INFO L85 PathProgramCache]: Analyzing trace with hash 216559493, now seen corresponding path program 1 times [2023-11-26 10:49:12,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:12,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189103899] [2023-11-26 10:49:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:12,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:12,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:12,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189103899] [2023-11-26 10:49:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189103899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:12,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:12,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:12,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105731871] [2023-11-26 10:49:12,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:49:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:12,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:49:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:49:12,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 28 [2023-11-26 10:49:12,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:12,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 28 [2023-11-26 10:49:12,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:12,420 INFO L124 PetriNetUnfolderBase]: 15/48 cut-off events. [2023-11-26 10:49:12,420 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:49:12,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 48 events. 15/48 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 90. Up to 30 conditions per place. [2023-11-26 10:49:12,423 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 16 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2023-11-26 10:49:12,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 96 flow [2023-11-26 10:49:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:49:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:49:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2023-11-26 10:49:12,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5982142857142857 [2023-11-26 10:49:12,428 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 67 transitions. [2023-11-26 10:49:12,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 67 transitions. [2023-11-26 10:49:12,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:12,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 67 transitions. [2023-11-26 10:49:12,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 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) [2023-11-26 10:49:12,433 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 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) [2023-11-26 10:49:12,433 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 48 flow. Second operand 4 states and 67 transitions. [2023-11-26 10:49:12,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 96 flow [2023-11-26 10:49:12,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:12,437 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 46 flow [2023-11-26 10:49:12,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2023-11-26 10:49:12,439 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -3 predicate places. [2023-11-26 10:49:12,439 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 46 flow [2023-11-26 10:49:12,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:12,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:12,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:49:12,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2023-11-26 10:49:12,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash -382710767, now seen corresponding path program 1 times [2023-11-26 10:49:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:12,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679424746] [2023-11-26 10:49:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:12,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:12,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679424746] [2023-11-26 10:49:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679424746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857664061] [2023-11-26 10:49:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:12,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:12,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 28 [2023-11-26 10:49:12,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:12,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 28 [2023-11-26 10:49:12,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:12,648 INFO L124 PetriNetUnfolderBase]: 17/55 cut-off events. [2023-11-26 10:49:12,649 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:49:12,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 55 events. 17/55 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 10 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 99. Up to 32 conditions per place. [2023-11-26 10:49:12,650 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2023-11-26 10:49:12,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 72 flow [2023-11-26 10:49:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:12,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2023-11-26 10:49:12,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2023-11-26 10:49:12,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 50 transitions. [2023-11-26 10:49:12,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 50 transitions. [2023-11-26 10:49:12,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:12,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 50 transitions. [2023-11-26 10:49:12,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,655 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 46 flow. Second operand 3 states and 50 transitions. [2023-11-26 10:49:12,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 72 flow [2023-11-26 10:49:12,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:12,657 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-11-26 10:49:12,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-11-26 10:49:12,658 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-11-26 10:49:12,659 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-11-26 10:49:12,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:12,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2023-11-26 10:49:12,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-11-26 10:49:12,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2023-11-26 10:49:12,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-11-26 10:49:12,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2023-11-26 10:49:12,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2023-11-26 10:49:12,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:49:12,665 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:49:12,672 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:49:12,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:49:12,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:49:12 BasicIcfg [2023-11-26 10:49:12,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:49:12,680 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:49:12,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:49:12,681 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:49:12,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:11" (3/4) ... [2023-11-26 10:49:12,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:49:12,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2023-11-26 10:49:12,693 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2023-11-26 10:49:12,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-26 10:49:12,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-26 10:49:12,694 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:49:12,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:49:12,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:49:12,786 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:49:12,786 INFO L158 Benchmark]: Toolchain (without parser) took 3428.31ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 100.6MB in the end (delta: 23.6MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,787 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:49:12,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.98ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 104.1MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.87ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 102.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,789 INFO L158 Benchmark]: Boogie Preprocessor took 69.27ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 99.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,789 INFO L158 Benchmark]: RCFGBuilder took 830.82ms. Allocated memory is still 161.5MB. Free memory was 99.9MB in the beginning and 114.3MB in the end (delta: -14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,790 INFO L158 Benchmark]: TraceAbstraction took 1655.17ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 104.8MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,790 INFO L158 Benchmark]: Witness Printer took 105.34ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 100.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:49:12,793 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.98ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 104.1MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.87ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 102.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.27ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 99.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 830.82ms. Allocated memory is still 161.5MB. Free memory was 99.9MB in the beginning and 114.3MB in the end (delta: -14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1655.17ms. Allocated memory is still 161.5MB. Free memory was 113.2MB in the beginning and 104.8MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 105.34ms. Allocated memory is still 161.5MB. Free memory was 104.8MB in the beginning and 100.6MB 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 699]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 125 IncrementalHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 125 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:49:12,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba167a1e-42b8-4408-b516-7858f6b0bce2/bin/uautomizer-verify-VRDe98Ueme/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