./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1 --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 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:18:06,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:18:06,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-01 13:18:06,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:18:06,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:18:06,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:18:06,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:18:06,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:18:06,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:18:06,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:18:06,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:18:06,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:18:06,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:18:06,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:18:06,836 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:18:06,837 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:18:06,837 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:18:06,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:18:06,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:18:06,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:18:06,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:18:06,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:18:06,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:18:06,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:18:06,839 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1 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 -> 5a41a1715a056c3cefb9e5b0430ae444adde5aa2f4e6078578085bf381d921cf [2024-12-01 13:18:07,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:18:07,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:18:07,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:18:07,046 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:18:07,046 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:18:07,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-12-01 13:18:09,673 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/data/be51ebaf3/c9ef181558944b03b744c8eabdf8b750/FLAG52bed503d [2024-12-01 13:18:09,889 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:18:09,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/sv-benchmarks/c/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-12-01 13:18:09,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/data/be51ebaf3/c9ef181558944b03b744c8eabdf8b750/FLAG52bed503d [2024-12-01 13:18:09,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/data/be51ebaf3/c9ef181558944b03b744c8eabdf8b750 [2024-12-01 13:18:09,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:18:09,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:18:09,922 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:18:09,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:18:09,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:18:09,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:18:09" (1/1) ... [2024-12-01 13:18:09,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3be502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:09, skipping insertion in model container [2024-12-01 13:18:09,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:18:09" (1/1) ... [2024-12-01 13:18:09,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:18:10,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:18:10,228 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:18:10,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:18:10,296 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:18:10,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10 WrapperNode [2024-12-01 13:18:10,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:18:10,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:18:10,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:18:10,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:18:10,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,333 INFO L138 Inliner]: procedures = 162, calls = 54, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 109 [2024-12-01 13:18:10,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:18:10,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:18:10,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:18:10,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:18:10,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,356 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]. [2024-12-01 13:18:10,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,362 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,366 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:18:10,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:18:10,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:18:10,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:18:10,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (1/1) ... [2024-12-01 13:18:10,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:18:10,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:10,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:18:10,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:18:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-01 13:18:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:18:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-01 13:18:10,416 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-01 13:18:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:18:10,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-01 13:18:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-01 13:18:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-01 13:18:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-01 13:18:10,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:18:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:18:10,418 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 13:18:10,514 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:18:10,515 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:18:10,757 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 13:18:10,757 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:18:10,902 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:18:10,902 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 13:18:10,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:18:10 BoogieIcfgContainer [2024-12-01 13:18:10,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:18:10,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:18:10,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:18:10,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:18:10,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:18:09" (1/3) ... [2024-12-01 13:18:10,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1182955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:18:10, skipping insertion in model container [2024-12-01 13:18:10,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:18:10" (2/3) ... [2024-12-01 13:18:10,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1182955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:18:10, skipping insertion in model container [2024-12-01 13:18:10,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:18:10" (3/3) ... [2024-12-01 13:18:10,911 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-12-01 13:18:10,926 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:18:10,927 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_24-multiple-protecting_true.i that has 2 procedures, 82 locations, 1 initial locations, 0 loop locations, and 5 error locations. [2024-12-01 13:18:10,927 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 13:18:10,968 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-01 13:18:11,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 89 transitions, 185 flow [2024-12-01 13:18:11,041 INFO L124 PetriNetUnfolderBase]: 8/88 cut-off events. [2024-12-01 13:18:11,043 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-01 13:18:11,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 8/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-12-01 13:18:11,047 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 89 transitions, 185 flow [2024-12-01 13:18:11,051 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 87 transitions, 180 flow [2024-12-01 13:18:11,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:18:11,067 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;@544058c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:18:11,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-12-01 13:18:11,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 13:18:11,075 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-12-01 13:18:11,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 13:18:11,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:11,076 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:11,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:11,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:11,082 INFO L85 PathProgramCache]: Analyzing trace with hash 618006096, now seen corresponding path program 1 times [2024-12-01 13:18:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:11,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881291600] [2024-12-01 13:18:11,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:11,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:11,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881291600] [2024-12-01 13:18:11,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881291600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:11,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:11,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:18:11,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028393382] [2024-12-01 13:18:11,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:11,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:18:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:11,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:18:11,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:18:11,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-12-01 13:18:11,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 87 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2024-12-01 13:18:11,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:11,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-12-01 13:18:11,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:11,828 INFO L124 PetriNetUnfolderBase]: 526/1354 cut-off events. [2024-12-01 13:18:11,829 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-01 13:18:11,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 1354 events. 526/1354 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7754 event pairs, 122 based on Foata normal form. 126/1412 useless extension candidates. Maximal degree in co-relation 2450. Up to 761 conditions per place. [2024-12-01 13:18:11,839 INFO L140 encePairwiseOnDemand]: 65/89 looper letters, 76 selfloop transitions, 19 changer transitions 0/121 dead transitions. [2024-12-01 13:18:11,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 121 transitions, 438 flow [2024-12-01 13:18:11,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:18:11,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 13:18:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 246 transitions. [2024-12-01 13:18:11,850 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5528089887640449 [2024-12-01 13:18:11,852 INFO L175 Difference]: Start difference. First operand has 83 places, 87 transitions, 180 flow. Second operand 5 states and 246 transitions. [2024-12-01 13:18:11,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 121 transitions, 438 flow [2024-12-01 13:18:11,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 121 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 13:18:11,861 INFO L231 Difference]: Finished difference. Result has 85 places, 87 transitions, 276 flow [2024-12-01 13:18:11,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=276, PETRI_PLACES=85, PETRI_TRANSITIONS=87} [2024-12-01 13:18:11,867 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2024-12-01 13:18:11,867 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 87 transitions, 276 flow [2024-12-01 13:18:11,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2024-12-01 13:18:11,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:11,867 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:11,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:18:11,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:11,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:11,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1964711094, now seen corresponding path program 1 times [2024-12-01 13:18:11,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:11,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657052674] [2024-12-01 13:18:11,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:12,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657052674] [2024-12-01 13:18:12,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657052674] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:12,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:12,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:18:12,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826331062] [2024-12-01 13:18:12,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:12,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:18:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:12,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:18:12,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:18:12,040 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-12-01 13:18:12,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 87 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2024-12-01 13:18:12,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:12,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-12-01 13:18:12,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:12,314 INFO L124 PetriNetUnfolderBase]: 310/965 cut-off events. [2024-12-01 13:18:12,314 INFO L125 PetriNetUnfolderBase]: For 262/277 co-relation queries the response was YES. [2024-12-01 13:18:12,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 965 events. 310/965 cut-off events. For 262/277 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5582 event pairs, 48 based on Foata normal form. 22/985 useless extension candidates. Maximal degree in co-relation 1069. Up to 430 conditions per place. [2024-12-01 13:18:12,319 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 88 selfloop transitions, 7 changer transitions 0/129 dead transitions. [2024-12-01 13:18:12,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 129 transitions, 596 flow [2024-12-01 13:18:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:18:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 13:18:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-12-01 13:18:12,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5926966292134831 [2024-12-01 13:18:12,322 INFO L175 Difference]: Start difference. First operand has 85 places, 87 transitions, 276 flow. Second operand 4 states and 211 transitions. [2024-12-01 13:18:12,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 129 transitions, 596 flow [2024-12-01 13:18:12,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 588 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-12-01 13:18:12,329 INFO L231 Difference]: Finished difference. Result has 89 places, 91 transitions, 308 flow [2024-12-01 13:18:12,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=89, PETRI_TRANSITIONS=91} [2024-12-01 13:18:12,330 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2024-12-01 13:18:12,330 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 91 transitions, 308 flow [2024-12-01 13:18:12,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2024-12-01 13:18:12,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:12,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:12,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:18:12,331 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:12,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:12,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1256597674, now seen corresponding path program 1 times [2024-12-01 13:18:12,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:12,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618614611] [2024-12-01 13:18:12,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:12,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:12,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:12,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618614611] [2024-12-01 13:18:12,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618614611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:12,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:12,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:18:12,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090848238] [2024-12-01 13:18:12,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:12,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:18:12,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:12,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:18:12,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:18:12,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-12-01 13:18:12,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 91 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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) [2024-12-01 13:18:12,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:12,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-12-01 13:18:12,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:12,799 INFO L124 PetriNetUnfolderBase]: 348/962 cut-off events. [2024-12-01 13:18:12,799 INFO L125 PetriNetUnfolderBase]: For 341/341 co-relation queries the response was YES. [2024-12-01 13:18:12,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 962 events. 348/962 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5208 event pairs, 189 based on Foata normal form. 36/995 useless extension candidates. Maximal degree in co-relation 1258. Up to 526 conditions per place. [2024-12-01 13:18:12,803 INFO L140 encePairwiseOnDemand]: 74/89 looper letters, 66 selfloop transitions, 24 changer transitions 0/112 dead transitions. [2024-12-01 13:18:12,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 112 transitions, 560 flow [2024-12-01 13:18:12,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:18:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:18:12,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-12-01 13:18:12,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44756554307116103 [2024-12-01 13:18:12,805 INFO L175 Difference]: Start difference. First operand has 89 places, 91 transitions, 308 flow. Second operand 6 states and 239 transitions. [2024-12-01 13:18:12,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 112 transitions, 560 flow [2024-12-01 13:18:12,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 112 transitions, 559 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:18:12,811 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 408 flow [2024-12-01 13:18:12,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2024-12-01 13:18:12,812 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2024-12-01 13:18:12,812 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 408 flow [2024-12-01 13:18:12,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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) [2024-12-01 13:18:12,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:12,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:12,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:18:12,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:12,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:12,813 INFO L85 PathProgramCache]: Analyzing trace with hash -964637551, now seen corresponding path program 1 times [2024-12-01 13:18:12,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:12,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524915602] [2024-12-01 13:18:12,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:12,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:12,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:12,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524915602] [2024-12-01 13:18:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524915602] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:12,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:12,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:18:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016466446] [2024-12-01 13:18:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:12,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:18:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:12,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:18:12,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:18:12,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-12-01 13:18:12,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-12-01 13:18:12,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:12,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-12-01 13:18:12,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:13,192 INFO L124 PetriNetUnfolderBase]: 351/971 cut-off events. [2024-12-01 13:18:13,192 INFO L125 PetriNetUnfolderBase]: For 933/933 co-relation queries the response was YES. [2024-12-01 13:18:13,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2628 conditions, 971 events. 351/971 cut-off events. For 933/933 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5313 event pairs, 109 based on Foata normal form. 11/979 useless extension candidates. Maximal degree in co-relation 1455. Up to 388 conditions per place. [2024-12-01 13:18:13,198 INFO L140 encePairwiseOnDemand]: 77/89 looper letters, 84 selfloop transitions, 31 changer transitions 0/137 dead transitions. [2024-12-01 13:18:13,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 137 transitions, 857 flow [2024-12-01 13:18:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 13:18:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 13:18:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 228 transitions. [2024-12-01 13:18:13,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5123595505617977 [2024-12-01 13:18:13,200 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 408 flow. Second operand 5 states and 228 transitions. [2024-12-01 13:18:13,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 137 transitions, 857 flow [2024-12-01 13:18:13,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 137 transitions, 840 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-12-01 13:18:13,207 INFO L231 Difference]: Finished difference. Result has 95 places, 102 transitions, 614 flow [2024-12-01 13:18:13,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=614, PETRI_PLACES=95, PETRI_TRANSITIONS=102} [2024-12-01 13:18:13,208 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 12 predicate places. [2024-12-01 13:18:13,208 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 102 transitions, 614 flow [2024-12-01 13:18:13,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-12-01 13:18:13,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:13,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:13,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 13:18:13,209 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:13,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:13,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1719452295, now seen corresponding path program 1 times [2024-12-01 13:18:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:13,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848105138] [2024-12-01 13:18:13,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:13,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848105138] [2024-12-01 13:18:13,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848105138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:13,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:13,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:18:13,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477122758] [2024-12-01 13:18:13,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:13,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:18:13,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:13,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:18:13,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:18:13,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-12-01 13:18:13,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 102 transitions, 614 flow. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-12-01 13:18:13,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:13,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-12-01 13:18:13,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:13,569 INFO L124 PetriNetUnfolderBase]: 185/663 cut-off events. [2024-12-01 13:18:13,569 INFO L125 PetriNetUnfolderBase]: For 891/893 co-relation queries the response was YES. [2024-12-01 13:18:13,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 663 events. 185/663 cut-off events. For 891/893 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3426 event pairs, 40 based on Foata normal form. 52/708 useless extension candidates. Maximal degree in co-relation 1392. Up to 269 conditions per place. [2024-12-01 13:18:13,571 INFO L140 encePairwiseOnDemand]: 70/89 looper letters, 71 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2024-12-01 13:18:13,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 126 transitions, 903 flow [2024-12-01 13:18:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:18:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 13:18:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-12-01 13:18:13,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5674157303370787 [2024-12-01 13:18:13,573 INFO L175 Difference]: Start difference. First operand has 95 places, 102 transitions, 614 flow. Second operand 4 states and 202 transitions. [2024-12-01 13:18:13,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 126 transitions, 903 flow [2024-12-01 13:18:13,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 862 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-12-01 13:18:13,580 INFO L231 Difference]: Finished difference. Result has 97 places, 106 transitions, 637 flow [2024-12-01 13:18:13,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=637, PETRI_PLACES=97, PETRI_TRANSITIONS=106} [2024-12-01 13:18:13,581 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 14 predicate places. [2024-12-01 13:18:13,581 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 106 transitions, 637 flow [2024-12-01 13:18:13,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 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) [2024-12-01 13:18:13,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:13,582 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:13,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:18:13,582 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:13,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -945283396, now seen corresponding path program 1 times [2024-12-01 13:18:13,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:13,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905887764] [2024-12-01 13:18:13,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:13,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:13,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905887764] [2024-12-01 13:18:13,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905887764] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:13,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:13,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:18:13,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134558818] [2024-12-01 13:18:13,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:13,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:18:13,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:13,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:18:13,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:18:13,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-12-01 13:18:13,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 106 transitions, 637 flow. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2024-12-01 13:18:13,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:13,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-12-01 13:18:13,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:14,036 INFO L124 PetriNetUnfolderBase]: 167/619 cut-off events. [2024-12-01 13:18:14,036 INFO L125 PetriNetUnfolderBase]: For 872/876 co-relation queries the response was YES. [2024-12-01 13:18:14,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2067 conditions, 619 events. 167/619 cut-off events. For 872/876 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3037 event pairs, 62 based on Foata normal form. 7/623 useless extension candidates. Maximal degree in co-relation 1361. Up to 411 conditions per place. [2024-12-01 13:18:14,038 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 73 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2024-12-01 13:18:14,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 110 transitions, 798 flow [2024-12-01 13:18:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:18:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 13:18:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 177 transitions. [2024-12-01 13:18:14,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49719101123595505 [2024-12-01 13:18:14,039 INFO L175 Difference]: Start difference. First operand has 97 places, 106 transitions, 637 flow. Second operand 4 states and 177 transitions. [2024-12-01 13:18:14,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 110 transitions, 798 flow [2024-12-01 13:18:14,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 701 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-12-01 13:18:14,044 INFO L231 Difference]: Finished difference. Result has 90 places, 98 transitions, 507 flow [2024-12-01 13:18:14,044 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=507, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2024-12-01 13:18:14,045 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 7 predicate places. [2024-12-01 13:18:14,045 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 507 flow [2024-12-01 13:18:14,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2024-12-01 13:18:14,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:14,045 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:14,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 13:18:14,045 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:14,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:14,046 INFO L85 PathProgramCache]: Analyzing trace with hash 518019640, now seen corresponding path program 1 times [2024-12-01 13:18:14,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:14,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140229525] [2024-12-01 13:18:14,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:14,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:14,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:14,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140229525] [2024-12-01 13:18:14,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140229525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:14,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:14,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:18:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275394273] [2024-12-01 13:18:14,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:14,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:18:14,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:14,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:18:14,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:18:14,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-12-01 13:18:14,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 98 transitions, 507 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) [2024-12-01 13:18:14,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:14,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-12-01 13:18:14,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:14,406 INFO L124 PetriNetUnfolderBase]: 97/424 cut-off events. [2024-12-01 13:18:14,406 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-12-01 13:18:14,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 424 events. 97/424 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1696 event pairs, 25 based on Foata normal form. 16/438 useless extension candidates. Maximal degree in co-relation 650. Up to 178 conditions per place. [2024-12-01 13:18:14,408 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 65 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-12-01 13:18:14,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 106 transitions, 705 flow [2024-12-01 13:18:14,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:18:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 13:18:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2024-12-01 13:18:14,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5056179775280899 [2024-12-01 13:18:14,409 INFO L175 Difference]: Start difference. First operand has 90 places, 98 transitions, 507 flow. Second operand 4 states and 180 transitions. [2024-12-01 13:18:14,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 106 transitions, 705 flow [2024-12-01 13:18:14,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 106 transitions, 688 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-12-01 13:18:14,413 INFO L231 Difference]: Finished difference. Result has 90 places, 92 transitions, 482 flow [2024-12-01 13:18:14,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=482, PETRI_PLACES=90, PETRI_TRANSITIONS=92} [2024-12-01 13:18:14,414 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 7 predicate places. [2024-12-01 13:18:14,414 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 92 transitions, 482 flow [2024-12-01 13:18:14,414 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) [2024-12-01 13:18:14,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:14,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:14,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:18:14,414 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:14,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:14,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1591076919, now seen corresponding path program 1 times [2024-12-01 13:18:14,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:14,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59442027] [2024-12-01 13:18:14,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:14,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:14,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:14,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:14,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59442027] [2024-12-01 13:18:14,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59442027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:14,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:14,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 13:18:14,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590519063] [2024-12-01 13:18:14,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:14,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 13:18:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:14,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 13:18:14,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 13:18:14,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 89 [2024-12-01 13:18:14,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 92 transitions, 482 flow. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:14,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:14,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 89 [2024-12-01 13:18:14,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:14,767 INFO L124 PetriNetUnfolderBase]: 108/424 cut-off events. [2024-12-01 13:18:14,767 INFO L125 PetriNetUnfolderBase]: For 378/378 co-relation queries the response was YES. [2024-12-01 13:18:14,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1329 conditions, 424 events. 108/424 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1628 event pairs, 61 based on Foata normal form. 4/425 useless extension candidates. Maximal degree in co-relation 599. Up to 267 conditions per place. [2024-12-01 13:18:14,769 INFO L140 encePairwiseOnDemand]: 77/89 looper letters, 58 selfloop transitions, 30 changer transitions 0/106 dead transitions. [2024-12-01 13:18:14,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 106 transitions, 746 flow [2024-12-01 13:18:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:18:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:18:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 224 transitions. [2024-12-01 13:18:14,771 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41947565543071164 [2024-12-01 13:18:14,771 INFO L175 Difference]: Start difference. First operand has 90 places, 92 transitions, 482 flow. Second operand 6 states and 224 transitions. [2024-12-01 13:18:14,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 106 transitions, 746 flow [2024-12-01 13:18:14,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 106 transitions, 719 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 13:18:14,775 INFO L231 Difference]: Finished difference. Result has 89 places, 93 transitions, 542 flow [2024-12-01 13:18:14,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=89, PETRI_TRANSITIONS=93} [2024-12-01 13:18:14,776 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2024-12-01 13:18:14,776 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 93 transitions, 542 flow [2024-12-01 13:18:14,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:14,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:14,776 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-12-01 13:18:14,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:18:14,776 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-12-01 13:18:14,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:14,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1707736401, now seen corresponding path program 1 times [2024-12-01 13:18:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:14,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195386378] [2024-12-01 13:18:14,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:18:14,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:18:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195386378] [2024-12-01 13:18:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195386378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:14,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-01 13:18:14,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500876711] [2024-12-01 13:18:14,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:14,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:18:14,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:14,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:18:14,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:18:14,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 89 [2024-12-01 13:18:14,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 93 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 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) [2024-12-01 13:18:14,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:14,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 89 [2024-12-01 13:18:14,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:14,939 INFO L124 PetriNetUnfolderBase]: 95/398 cut-off events. [2024-12-01 13:18:14,939 INFO L125 PetriNetUnfolderBase]: For 423/423 co-relation queries the response was YES. [2024-12-01 13:18:14,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 398 events. 95/398 cut-off events. For 423/423 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1541 event pairs, 69 based on Foata normal form. 1/392 useless extension candidates. Maximal degree in co-relation 345. Up to 313 conditions per place. [2024-12-01 13:18:14,940 INFO L140 encePairwiseOnDemand]: 87/89 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2024-12-01 13:18:14,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 662 flow [2024-12-01 13:18:14,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:18:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 13:18:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-12-01 13:18:14,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4943820224719101 [2024-12-01 13:18:14,942 INFO L175 Difference]: Start difference. First operand has 89 places, 93 transitions, 542 flow. Second operand 3 states and 132 transitions. [2024-12-01 13:18:14,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 662 flow [2024-12-01 13:18:14,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 92 transitions, 661 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:18:14,945 INFO L231 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2024-12-01 13:18:14,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2024-12-01 13:18:14,946 INFO L279 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2024-12-01 13:18:14,946 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2024-12-01 13:18:14,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 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) [2024-12-01 13:18:14,948 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-12-01 13:18:14,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-12-01 13:18:14,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-12-01 13:18:14,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (2 of 6 remaining) [2024-12-01 13:18:14,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2024-12-01 13:18:14,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-12-01 13:18:14,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:18:14,950 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:14,953 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-01 13:18:14,953 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 13:18:14,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 01:18:14 BasicIcfg [2024-12-01 13:18:14,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 13:18:14,959 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 13:18:14,959 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 13:18:14,959 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 13:18:14,960 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:18:10" (3/4) ... [2024-12-01 13:18:14,962 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-01 13:18:14,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-12-01 13:18:14,969 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2024-12-01 13:18:14,969 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-01 13:18:14,969 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-01 13:18:14,969 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-01 13:18:15,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 13:18:15,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 13:18:15,041 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 13:18:15,042 INFO L158 Benchmark]: Toolchain (without parser) took 5121.57ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 91.2MB in the beginning and 62.4MB in the end (delta: 28.8MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2024-12-01 13:18:15,042 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:18:15,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.49ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 71.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 13:18:15,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.98ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:18:15,043 INFO L158 Benchmark]: Boogie Preprocessor took 34.79ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:18:15,043 INFO L158 Benchmark]: RCFGBuilder took 532.89ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 81.0MB in the end (delta: -13.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-12-01 13:18:15,043 INFO L158 Benchmark]: TraceAbstraction took 4053.76ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 66.6MB in the end (delta: 13.9MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2024-12-01 13:18:15,043 INFO L158 Benchmark]: Witness Printer took 82.24ms. Allocated memory is still 201.3MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 13:18:15,045 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 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.49ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 71.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.98ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.79ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 67.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 532.89ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 81.0MB in the end (delta: -13.8MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4053.76ms. Allocated memory was 117.4MB in the beginning and 201.3MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 66.6MB in the end (delta: 13.9MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. * Witness Printer took 82.24ms. Allocated memory is still 201.3MB. Free memory was 66.6MB in the beginning and 62.4MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 704]: 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, 109 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: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1083 IncrementalHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 15 mSDtfsCounter, 1083 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=637occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 1416 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-01 13:18:15,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22084c1a-9a91-4a52-87ad-d291601a8926/bin/uautomizer-verify-84ZbGMXZE1/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