./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe005_tso.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_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe005_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB --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 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:06,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:06,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:29:06,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:06,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:06,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:06,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:06,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:06,825 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:06,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:06,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:29:06,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:29:06,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:06,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:06,827 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:06,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:06,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:29:06,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:06,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:29:06,828 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:29:06,829 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:29:06,829 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:29:06,829 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:06,829 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:06,829 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:29:06,829 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:06,830 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:06,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:06,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:06,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:06,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:06,831 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:29:06,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:29:06,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:06,831 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:06,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:29:06,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:29:06,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:29:06,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:29:06,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:29:06,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:29:06,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:29:06,833 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_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce [2024-11-28 04:29:07,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:07,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:07,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:07,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:07,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:07,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe005_tso.i [2024-11-28 04:29:10,458 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/data/f5ee12d14/7c02615260ca42a18f0daff6b50b2891/FLAGb62c089da [2024-11-28 04:29:10,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:10,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/sv-benchmarks/c/pthread-wmm/safe005_tso.i [2024-11-28 04:29:10,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/data/f5ee12d14/7c02615260ca42a18f0daff6b50b2891/FLAGb62c089da [2024-11-28 04:29:11,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/data/f5ee12d14/7c02615260ca42a18f0daff6b50b2891 [2024-11-28 04:29:11,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:11,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:11,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:11,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:11,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:11,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577f00f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11, skipping insertion in model container [2024-11-28 04:29:11,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:11,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:11,505 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:11,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:11,618 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:11,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11 WrapperNode [2024-11-28 04:29:11,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:11,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:11,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:11,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:11,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,686 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-28 04:29:11,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:11,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:11,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:11,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:11,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,736 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:29:11,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,745 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:11,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:11,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:11,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:11,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (1/1) ... [2024-11-28 04:29:11,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:29:11,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:11,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:11,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:29:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:29:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 04:29:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 04:29:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 04:29:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 04:29:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 04:29:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 04:29:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:29:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:29:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:11,865 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:29:12,059 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:12,062 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:12,304 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:29:12,305 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:12,408 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:12,408 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:29:12,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:12 BoogieIcfgContainer [2024-11-28 04:29:12,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:12,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:29:12,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:29:12,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:29:12,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:29:11" (1/3) ... [2024-11-28 04:29:12,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309111a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:12, skipping insertion in model container [2024-11-28 04:29:12,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:11" (2/3) ... [2024-11-28 04:29:12,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309111a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:29:12, skipping insertion in model container [2024-11-28 04:29:12,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:12" (3/3) ... [2024-11-28 04:29:12,426 INFO L128 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2024-11-28 04:29:12,445 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:29:12,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe005_tso.i that has 4 procedures, 43 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 04:29:12,447 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:29:12,539 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:29:12,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-28 04:29:12,623 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-28 04:29:12,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:12,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-28 04:29:12,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-28 04:29:12,634 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-11-28 04:29:12,644 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:29:12,659 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;@363243c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:29:12,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-28 04:29:12,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:29:12,695 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-28 04:29:12,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:12,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:12,696 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:12,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:12,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash 166983522, now seen corresponding path program 1 times [2024-11-28 04:29:12,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:12,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905728896] [2024-11-28 04:29:12,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:13,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:13,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905728896] [2024-11-28 04:29:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905728896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:13,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:13,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:29:13,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208594516] [2024-11-28 04:29:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:13,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:29:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:13,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:29:13,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:29:13,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-11-28 04:29:13,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:13,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:13,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-11-28 04:29:13,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:13,273 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-11-28 04:29:13,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:13,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1211 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-11-28 04:29:13,279 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-28 04:29:13,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-11-28 04:29:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:29:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:29:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-28 04:29:13,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-28 04:29:13,297 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-11-28 04:29:13,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-11-28 04:29:13,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:29:13,305 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-11-28 04:29:13,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-11-28 04:29:13,313 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-11-28 04:29:13,313 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-11-28 04:29:13,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:13,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:13,314 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:13,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:29:13,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:13,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 166985015, now seen corresponding path program 1 times [2024-11-28 04:29:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557744192] [2024-11-28 04:29:13,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:13,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:13,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557744192] [2024-11-28 04:29:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557744192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763079382] [2024-11-28 04:29:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:13,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:13,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:13,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:13,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-28 04:29:13,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:13,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:13,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-28 04:29:13,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:14,733 INFO L124 PetriNetUnfolderBase]: 1499/2796 cut-off events. [2024-11-28 04:29:14,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:29:14,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 2796 events. 1499/2796 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 20413 event pairs, 302 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 5146. Up to 765 conditions per place. [2024-11-28 04:29:14,757 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 28 selfloop transitions, 6 changer transitions 51/100 dead transitions. [2024-11-28 04:29:14,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 100 transitions, 382 flow [2024-11-28 04:29:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:29:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:29:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 258 transitions. [2024-11-28 04:29:14,762 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-11-28 04:29:14,762 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 258 transitions. [2024-11-28 04:29:14,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 100 transitions, 382 flow [2024-11-28 04:29:14,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 100 transitions, 381 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:29:14,772 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 149 flow [2024-11-28 04:29:14,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2024-11-28 04:29:14,773 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-28 04:29:14,773 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 149 flow [2024-11-28 04:29:14,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:14,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:14,773 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:14,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:29:14,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:14,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:14,774 INFO L85 PathProgramCache]: Analyzing trace with hash 27606038, now seen corresponding path program 1 times [2024-11-28 04:29:14,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:14,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772707535] [2024-11-28 04:29:14,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:15,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:15,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772707535] [2024-11-28 04:29:15,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772707535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:15,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:15,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:15,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32120475] [2024-11-28 04:29:15,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:15,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:15,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:15,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:15,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-28 04:29:15,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) [2024-11-28 04:29:15,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:15,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-28 04:29:15,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:15,793 INFO L124 PetriNetUnfolderBase]: 847/1707 cut-off events. [2024-11-28 04:29:15,794 INFO L125 PetriNetUnfolderBase]: For 2841/2841 co-relation queries the response was YES. [2024-11-28 04:29:15,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4873 conditions, 1707 events. 847/1707 cut-off events. For 2841/2841 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11833 event pairs, 246 based on Foata normal form. 63/1738 useless extension candidates. Maximal degree in co-relation 4858. Up to 391 conditions per place. [2024-11-28 04:29:15,808 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 30 selfloop transitions, 6 changer transitions 45/96 dead transitions. [2024-11-28 04:29:15,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 96 transitions, 605 flow [2024-11-28 04:29:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:29:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:29:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-11-28 04:29:15,813 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-11-28 04:29:15,814 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 149 flow. Second operand 10 states and 262 transitions. [2024-11-28 04:29:15,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 96 transitions, 605 flow [2024-11-28 04:29:15,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 96 transitions, 531 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-28 04:29:15,836 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 183 flow [2024-11-28 04:29:15,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=183, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2024-11-28 04:29:15,839 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-28 04:29:15,839 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 183 flow [2024-11-28 04:29:15,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 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) [2024-11-28 04:29:15,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:15,840 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] [2024-11-28 04:29:15,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:29:15,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:15,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1857037482, now seen corresponding path program 1 times [2024-11-28 04:29:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373391461] [2024-11-28 04:29:15,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:16,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373391461] [2024-11-28 04:29:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373391461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:16,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:16,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:29:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327336901] [2024-11-28 04:29:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:16,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:29:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:16,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:29:16,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:16,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-28 04:29:16,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 183 flow. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:16,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:16,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-28 04:29:16,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:16,759 INFO L124 PetriNetUnfolderBase]: 916/1932 cut-off events. [2024-11-28 04:29:16,759 INFO L125 PetriNetUnfolderBase]: For 3354/3357 co-relation queries the response was YES. [2024-11-28 04:29:16,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5470 conditions, 1932 events. 916/1932 cut-off events. For 3354/3357 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 14132 event pairs, 175 based on Foata normal form. 32/1927 useless extension candidates. Maximal degree in co-relation 5448. Up to 655 conditions per place. [2024-11-28 04:29:16,776 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 34 selfloop transitions, 10 changer transitions 27/86 dead transitions. [2024-11-28 04:29:16,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 573 flow [2024-11-28 04:29:16,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:29:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:29:16,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-28 04:29:16,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6331168831168831 [2024-11-28 04:29:16,779 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 183 flow. Second operand 7 states and 195 transitions. [2024-11-28 04:29:16,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 573 flow [2024-11-28 04:29:16,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 527 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-11-28 04:29:16,806 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 221 flow [2024-11-28 04:29:16,807 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2024-11-28 04:29:16,807 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-28 04:29:16,808 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 221 flow [2024-11-28 04:29:16,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:16,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:16,808 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] [2024-11-28 04:29:16,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:29:16,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:16,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:16,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1623304601, now seen corresponding path program 1 times [2024-11-28 04:29:16,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:16,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881107622] [2024-11-28 04:29:16,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:16,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:17,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:17,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881107622] [2024-11-28 04:29:17,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881107622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:17,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:17,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:29:17,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468836100] [2024-11-28 04:29:17,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:17,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:29:17,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:17,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:29:17,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:29:17,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-28 04:29:17,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:17,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:17,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-28 04:29:17,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:17,788 INFO L124 PetriNetUnfolderBase]: 793/1721 cut-off events. [2024-11-28 04:29:17,789 INFO L125 PetriNetUnfolderBase]: For 2185/2191 co-relation queries the response was YES. [2024-11-28 04:29:17,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4613 conditions, 1721 events. 793/1721 cut-off events. For 2185/2191 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12716 event pairs, 261 based on Foata normal form. 32/1728 useless extension candidates. Maximal degree in co-relation 4590. Up to 339 conditions per place. [2024-11-28 04:29:17,802 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 35 selfloop transitions, 7 changer transitions 39/96 dead transitions. [2024-11-28 04:29:17,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 96 transitions, 576 flow [2024-11-28 04:29:17,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:29:17,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 04:29:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 288 transitions. [2024-11-28 04:29:17,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5950413223140496 [2024-11-28 04:29:17,805 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 221 flow. Second operand 11 states and 288 transitions. [2024-11-28 04:29:17,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 96 transitions, 576 flow [2024-11-28 04:29:17,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 518 flow, removed 27 selfloop flow, removed 7 redundant places. [2024-11-28 04:29:17,815 INFO L231 Difference]: Finished difference. Result has 73 places, 39 transitions, 182 flow [2024-11-28 04:29:17,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=182, PETRI_PLACES=73, PETRI_TRANSITIONS=39} [2024-11-28 04:29:17,816 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-11-28 04:29:17,817 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 39 transitions, 182 flow [2024-11-28 04:29:17,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:17,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:17,817 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] [2024-11-28 04:29:17,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:29:17,817 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:17,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2071217264, now seen corresponding path program 1 times [2024-11-28 04:29:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:17,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059488448] [2024-11-28 04:29:17,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:17,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059488448] [2024-11-28 04:29:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059488448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:29:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726754434] [2024-11-28 04:29:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:17,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:29:17,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:17,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:29:17,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:29:18,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-28 04:29:18,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 39 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:18,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-28 04:29:18,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:18,347 INFO L124 PetriNetUnfolderBase]: 930/1773 cut-off events. [2024-11-28 04:29:18,348 INFO L125 PetriNetUnfolderBase]: For 1022/1026 co-relation queries the response was YES. [2024-11-28 04:29:18,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4012 conditions, 1773 events. 930/1773 cut-off events. For 1022/1026 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 11717 event pairs, 190 based on Foata normal form. 81/1780 useless extension candidates. Maximal degree in co-relation 3987. Up to 815 conditions per place. [2024-11-28 04:29:18,361 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 25 selfloop transitions, 5 changer transitions 2/54 dead transitions. [2024-11-28 04:29:18,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 54 transitions, 280 flow [2024-11-28 04:29:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:29:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:29:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-28 04:29:18,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-28 04:29:18,363 INFO L175 Difference]: Start difference. First operand has 73 places, 39 transitions, 182 flow. Second operand 4 states and 122 transitions. [2024-11-28 04:29:18,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 54 transitions, 280 flow [2024-11-28 04:29:18,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 235 flow, removed 9 selfloop flow, removed 14 redundant places. [2024-11-28 04:29:18,372 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 175 flow [2024-11-28 04:29:18,372 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-11-28 04:29:18,373 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2024-11-28 04:29:18,373 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 175 flow [2024-11-28 04:29:18,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:18,374 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] [2024-11-28 04:29:18,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:29:18,374 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:18,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:18,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2063278423, now seen corresponding path program 1 times [2024-11-28 04:29:18,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:18,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503215737] [2024-11-28 04:29:18,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:18,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:18,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503215737] [2024-11-28 04:29:18,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503215737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:18,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:18,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:29:18,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433780957] [2024-11-28 04:29:18,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:18,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:29:18,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:18,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:29:18,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:29:18,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-28 04:29:18,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:18,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-28 04:29:18,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:18,902 INFO L124 PetriNetUnfolderBase]: 845/1628 cut-off events. [2024-11-28 04:29:18,903 INFO L125 PetriNetUnfolderBase]: For 735/1196 co-relation queries the response was YES. [2024-11-28 04:29:18,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 1628 events. 845/1628 cut-off events. For 735/1196 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 10230 event pairs, 69 based on Foata normal form. 91/1651 useless extension candidates. Maximal degree in co-relation 4066. Up to 660 conditions per place. [2024-11-28 04:29:18,913 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 29 selfloop transitions, 8 changer transitions 5/64 dead transitions. [2024-11-28 04:29:18,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 322 flow [2024-11-28 04:29:18,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:29:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:29:18,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-28 04:29:18,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-28 04:29:18,915 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 175 flow. Second operand 5 states and 154 transitions. [2024-11-28 04:29:18,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 322 flow [2024-11-28 04:29:18,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 317 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-28 04:29:18,920 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 219 flow [2024-11-28 04:29:18,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-28 04:29:18,923 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-28 04:29:18,923 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 219 flow [2024-11-28 04:29:18,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:18,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:18,924 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] [2024-11-28 04:29:18,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:29:18,925 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:18,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash -244643716, now seen corresponding path program 1 times [2024-11-28 04:29:18,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:18,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361780110] [2024-11-28 04:29:18,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:19,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:19,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361780110] [2024-11-28 04:29:19,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361780110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:19,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:19,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:29:19,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521362169] [2024-11-28 04:29:19,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:19,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:19,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:19,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:19,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:19,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-28 04:29:19,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:19,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-28 04:29:19,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:19,413 INFO L124 PetriNetUnfolderBase]: 572/1085 cut-off events. [2024-11-28 04:29:19,414 INFO L125 PetriNetUnfolderBase]: For 1600/2258 co-relation queries the response was YES. [2024-11-28 04:29:19,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 1085 events. 572/1085 cut-off events. For 1600/2258 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5769 event pairs, 18 based on Foata normal form. 86/1114 useless extension candidates. Maximal degree in co-relation 3218. Up to 348 conditions per place. [2024-11-28 04:29:19,421 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 11 changer transitions 5/65 dead transitions. [2024-11-28 04:29:19,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 354 flow [2024-11-28 04:29:19,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:29:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:29:19,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2024-11-28 04:29:19,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6704545454545454 [2024-11-28 04:29:19,423 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 219 flow. Second operand 6 states and 177 transitions. [2024-11-28 04:29:19,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 354 flow [2024-11-28 04:29:19,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 317 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-11-28 04:29:19,433 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 221 flow [2024-11-28 04:29:19,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-28 04:29:19,434 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-28 04:29:19,438 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 221 flow [2024-11-28 04:29:19,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:29:19,438 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] [2024-11-28 04:29:19,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:29:19,439 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-28 04:29:19,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:19,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1548965134, now seen corresponding path program 1 times [2024-11-28 04:29:19,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:29:19,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780832319] [2024-11-28 04:29:19,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:19,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:29:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:29:19,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:29:19,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780832319] [2024-11-28 04:29:19,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780832319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:29:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:29:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:29:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302243990] [2024-11-28 04:29:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:29:19,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:29:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:29:19,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:29:19,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:29:19,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-28 04:29:19,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:19,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:29:19,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-28 04:29:19,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:29:20,047 INFO L124 PetriNetUnfolderBase]: 508/1118 cut-off events. [2024-11-28 04:29:20,047 INFO L125 PetriNetUnfolderBase]: For 1397/1472 co-relation queries the response was YES. [2024-11-28 04:29:20,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 1118 events. 508/1118 cut-off events. For 1397/1472 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7022 event pairs, 134 based on Foata normal form. 24/1032 useless extension candidates. Maximal degree in co-relation 3048. Up to 588 conditions per place. [2024-11-28 04:29:20,053 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-11-28 04:29:20,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 405 flow [2024-11-28 04:29:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:29:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:29:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 175 transitions. [2024-11-28 04:29:20,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-28 04:29:20,055 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 221 flow. Second operand 7 states and 175 transitions. [2024-11-28 04:29:20,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 71 transitions, 405 flow [2024-11-28 04:29:20,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 355 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-11-28 04:29:20,066 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-11-28 04:29:20,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-11-28 04:29:20,067 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-28 04:29:20,067 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-11-28 04:29:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:20,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-28 04:29:20,072 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-28 04:29:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-28 04:29:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-28 04:29:20,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-28 04:29:20,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:29:20,076 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:29:20,080 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:29:20,080 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:29:20,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:29:20 BasicIcfg [2024-11-28 04:29:20,092 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:29:20,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:29:20,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:29:20,092 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:29:20,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:12" (3/4) ... [2024-11-28 04:29:20,096 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:29:20,100 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 04:29:20,100 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 04:29:20,100 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-28 04:29:20,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-28 04:29:20,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-28 04:29:20,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:29:20,108 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:29:20,194 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:29:20,194 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:29:20,195 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:29:20,196 INFO L158 Benchmark]: Toolchain (without parser) took 9174.54ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 116.9MB in the beginning and 361.4MB in the end (delta: -244.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-28 04:29:20,196 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:20,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.49ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 96.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:29:20,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.68ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:20,197 INFO L158 Benchmark]: Boogie Preprocessor took 74.85ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:20,197 INFO L158 Benchmark]: RCFGBuilder took 644.12ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 74.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:29:20,197 INFO L158 Benchmark]: TraceAbstraction took 7677.57ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 74.1MB in the beginning and 365.6MB in the end (delta: -291.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:20,198 INFO L158 Benchmark]: Witness Printer took 102.34ms. Allocated memory is still 427.8MB. Free memory was 365.6MB in the beginning and 361.4MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:20,200 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 142.6MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.49ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 96.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.68ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 94.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.85ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 93.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 644.12ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 74.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7677.57ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 74.1MB in the beginning and 365.6MB in the end (delta: -291.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 102.34ms. Allocated memory is still 427.8MB. Free memory was 365.6MB in the beginning and 361.4MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 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: 7.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 798 IncrementalHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 55 mSDtfsCounter, 798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=4, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 852 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:29:20,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_142fe96c-b50f-4fe6-8d03-39e2e5fa9555/bin/uautomizer-verify-aQ6SnzHsRB/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