./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/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_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:40:48,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:40:48,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:40:48,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:40:48,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:40:48,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:40:48,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:40:48,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:40:48,808 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:40:48,808 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:40:48,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:40:48,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:40:48,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:40:48,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:40:48,811 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:40:48,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:40:48,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:40:48,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:40:48,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:40:48,812 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:40:48,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:40:48,813 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:40:48,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:48,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:48,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:48,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:48,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:48,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:40:48,815 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:40:48,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:40:48,816 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_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/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 ! call(reach_error())) ) 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 -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2024-11-28 02:40:49,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:40:49,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:40:49,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:40:49,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:40:49,133 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:40:49,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-28 02:40:52,193 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/data/d6d46824c/113d5c581be74db6bb82c9ff15a9ed16/FLAG1a64a5ef9 [2024-11-28 02:40:52,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:40:52,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-28 02:40:52,483 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/data/d6d46824c/113d5c581be74db6bb82c9ff15a9ed16/FLAG1a64a5ef9 [2024-11-28 02:40:52,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/data/d6d46824c/113d5c581be74db6bb82c9ff15a9ed16 [2024-11-28 02:40:52,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:40:52,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:40:52,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:52,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:40:52,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:40:52,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2535995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52, skipping insertion in model container [2024-11-28 02:40:52,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:40:52,765 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c[2856,2869] [2024-11-28 02:40:52,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:52,788 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:40:52,823 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c[2856,2869] [2024-11-28 02:40:52,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:40:52,850 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:40:52,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52 WrapperNode [2024-11-28 02:40:52,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:40:52,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:52,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:40:52,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:40:52,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,917 INFO L138 Inliner]: procedures = 22, calls = 15, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 192 [2024-11-28 02:40:52,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:40:52,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:40:52,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:40:52,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:40:52,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,954 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 02:40:52,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,960 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:40:52,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:40:52,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:40:52,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:40:52,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (1/1) ... [2024-11-28 02:40:52,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:40:52,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:40:53,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:40:53,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:40:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:40:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 02:40:53,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 02:40:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 02:40:53,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 02:40:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 02:40:53,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 02:40:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:40:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:40:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:40:53,047 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 02:40:53,153 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:40:53,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:40:53,606 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:40:53,607 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:40:54,206 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:40:54,206 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:40:54,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:54 BoogieIcfgContainer [2024-11-28 02:40:54,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:40:54,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:40:54,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:40:54,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:40:54,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:40:52" (1/3) ... [2024-11-28 02:40:54,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57271440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:54, skipping insertion in model container [2024-11-28 02:40:54,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:40:52" (2/3) ... [2024-11-28 02:40:54,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57271440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:40:54, skipping insertion in model container [2024-11-28 02:40:54,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:54" (3/3) ... [2024-11-28 02:40:54,222 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2024-11-28 02:40:54,238 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:40:54,241 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-trans.wvr.c that has 4 procedures, 20 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:40:54,241 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:40:54,333 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 02:40:54,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 59 flow [2024-11-28 02:40:54,428 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-28 02:40:54,431 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 02:40:54,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-28 02:40:54,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 59 flow [2024-11-28 02:40:54,440 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 15 transitions, 48 flow [2024-11-28 02:40:54,453 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:40:54,468 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=LoopHeads, 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;@1148f923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:40:54,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 02:40:54,495 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:40:54,495 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-28 02:40:54,495 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 02:40:54,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:54,497 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:54,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:54,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1211990870, now seen corresponding path program 1 times [2024-11-28 02:40:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:54,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127069750] [2024-11-28 02:40:54,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:40:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:40:57,085 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 02:40:57,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:57,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127069750] [2024-11-28 02:40:57,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127069750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:57,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:57,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:40:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277781936] [2024-11-28 02:40:57,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:57,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:40:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:57,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:40:57,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:40:57,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:40:57,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:40:57,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:57,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:40:57,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:57,691 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-11-28 02:40:57,691 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-28 02:40:57,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 1 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-11-28 02:40:57,695 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-11-28 02:40:57,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-11-28 02:40:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:40:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:40:57,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-11-28 02:40:57,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-28 02:40:57,719 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 48 flow. Second operand 6 states and 62 transitions. [2024-11-28 02:40:57,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-11-28 02:40:57,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-28 02:40:57,731 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-11-28 02:40:57,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-11-28 02:40:57,738 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2024-11-28 02:40:57,739 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-11-28 02:40:57,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:40:57,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:57,739 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:57,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:40:57,740 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:57,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash 509559352, now seen corresponding path program 2 times [2024-11-28 02:40:57,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:57,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716108931] [2024-11-28 02:40:57,743 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:40:57,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:57,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:40:57,805 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:40:59,108 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 02:40:59,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:40:59,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716108931] [2024-11-28 02:40:59,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716108931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:40:59,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:40:59,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:40:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707972394] [2024-11-28 02:40:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:40:59,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:40:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:40:59,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:40:59,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:40:59,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:40:59,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:40:59,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:40:59,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:40:59,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:40:59,509 INFO L124 PetriNetUnfolderBase]: 32/100 cut-off events. [2024-11-28 02:40:59,510 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-28 02:40:59,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 100 events. 32/100 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 346 event pairs, 6 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 264. Up to 48 conditions per place. [2024-11-28 02:40:59,513 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 24 selfloop transitions, 9 changer transitions 3/37 dead transitions. [2024-11-28 02:40:59,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 197 flow [2024-11-28 02:40:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:40:59,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:40:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-11-28 02:40:59,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2024-11-28 02:40:59,516 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 5 states and 54 transitions. [2024-11-28 02:40:59,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 197 flow [2024-11-28 02:40:59,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 193 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-28 02:40:59,520 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 116 flow [2024-11-28 02:40:59,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2024-11-28 02:40:59,523 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2024-11-28 02:40:59,523 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 116 flow [2024-11-28 02:40:59,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:40:59,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:40:59,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:40:59,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:40:59,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:40:59,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:40:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1388989672, now seen corresponding path program 3 times [2024-11-28 02:40:59,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:40:59,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122472065] [2024-11-28 02:40:59,526 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:40:59,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:40:59,578 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:40:59,579 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:00,607 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 02:41:00,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:00,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122472065] [2024-11-28 02:41:00,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122472065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:00,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:00,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:00,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822839354] [2024-11-28 02:41:00,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:00,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:00,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:00,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:00,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:00,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:41:00,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:00,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:00,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:41:00,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:41:00,979 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2024-11-28 02:41:00,980 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-28 02:41:00,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 98 events. 32/98 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 333 event pairs, 1 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 197. Up to 44 conditions per place. [2024-11-28 02:41:00,983 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 23 selfloop transitions, 7 changer transitions 10/41 dead transitions. [2024-11-28 02:41:00,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 258 flow [2024-11-28 02:41:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:41:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:41:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-11-28 02:41:00,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-28 02:41:00,986 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 116 flow. Second operand 6 states and 62 transitions. [2024-11-28 02:41:00,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 258 flow [2024-11-28 02:41:00,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 251 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-28 02:41:00,991 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 118 flow [2024-11-28 02:41:00,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2024-11-28 02:41:00,992 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 12 predicate places. [2024-11-28 02:41:00,993 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 118 flow [2024-11-28 02:41:00,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:00,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:41:00,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:00,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:41:00,993 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:41:00,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:00,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1364866006, now seen corresponding path program 4 times [2024-11-28 02:41:00,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:00,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236795047] [2024-11-28 02:41:00,995 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:41:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:01,052 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:41:01,052 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:02,080 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 02:41:02,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:02,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236795047] [2024-11-28 02:41:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236795047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:02,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:02,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:02,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731632117] [2024-11-28 02:41:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:02,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:02,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:02,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:02,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:02,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:41:02,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:02,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:02,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:41:02,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:41:02,430 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2024-11-28 02:41:02,430 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-28 02:41:02,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 54 events. 16/54 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 125 event pairs, 1 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 208. Up to 18 conditions per place. [2024-11-28 02:41:02,431 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 5 changer transitions 11/33 dead transitions. [2024-11-28 02:41:02,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 223 flow [2024-11-28 02:41:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:41:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:41:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2024-11-28 02:41:02,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2024-11-28 02:41:02,433 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 118 flow. Second operand 6 states and 54 transitions. [2024-11-28 02:41:02,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 223 flow [2024-11-28 02:41:02,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 193 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-28 02:41:02,436 INFO L231 Difference]: Finished difference. Result has 36 places, 18 transitions, 89 flow [2024-11-28 02:41:02,436 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=36, PETRI_TRANSITIONS=18} [2024-11-28 02:41:02,437 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2024-11-28 02:41:02,437 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 89 flow [2024-11-28 02:41:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:02,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:41:02,438 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:02,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:41:02,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:41:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1413441480, now seen corresponding path program 5 times [2024-11-28 02:41:02,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:02,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307465264] [2024-11-28 02:41:02,439 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 02:41:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:02,468 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:41:02,469 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:03,356 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 02:41:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:03,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307465264] [2024-11-28 02:41:03,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307465264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:03,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:03,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865069793] [2024-11-28 02:41:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:03,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:03,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:03,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:03,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:41:03,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:03,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:03,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:41:03,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:41:03,718 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-11-28 02:41:03,719 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-28 02:41:03,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 37 events. 8/37 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 129. Up to 17 conditions per place. [2024-11-28 02:41:03,720 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 13 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2024-11-28 02:41:03,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 163 flow [2024-11-28 02:41:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:41:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:41:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2024-11-28 02:41:03,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2024-11-28 02:41:03,721 INFO L175 Difference]: Start difference. First operand has 36 places, 18 transitions, 89 flow. Second operand 6 states and 51 transitions. [2024-11-28 02:41:03,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 163 flow [2024-11-28 02:41:03,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 141 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-28 02:41:03,724 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 57 flow [2024-11-28 02:41:03,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=57, PETRI_PLACES=33, PETRI_TRANSITIONS=15} [2024-11-28 02:41:03,725 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-28 02:41:03,725 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 57 flow [2024-11-28 02:41:03,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:03,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:41:03,725 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:03,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:41:03,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-28 02:41:03,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash -558134826, now seen corresponding path program 6 times [2024-11-28 02:41:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:41:03,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397190655] [2024-11-28 02:41:03,727 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 02:41:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:03,752 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 02:41:03,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:41:04,757 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 02:41:04,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:41:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397190655] [2024-11-28 02:41:04,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397190655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:41:04,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:41:04,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:41:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346470232] [2024-11-28 02:41:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:41:04,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:41:04,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:41:04,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:41:04,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:41:04,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-28 02:41:04,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:04,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:41:04,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-28 02:41:04,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:41:05,031 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-28 02:41:05,032 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:41:05,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 19 events. 3/19 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2024-11-28 02:41:05,032 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-11-28 02:41:05,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 89 flow [2024-11-28 02:41:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:41:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:41:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2024-11-28 02:41:05,034 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35964912280701755 [2024-11-28 02:41:05,034 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 57 flow. Second operand 6 states and 41 transitions. [2024-11-28 02:41:05,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 89 flow [2024-11-28 02:41:05,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-28 02:41:05,035 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-11-28 02:41:05,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-11-28 02:41:05,036 INFO L279 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2024-11-28 02:41:05,037 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-11-28 02:41:05,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 02:41:05,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-28 02:41:05,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-28 02:41:05,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-28 02:41:05,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-28 02:41:05,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:41:05,042 INFO L422 BasicCegarLoop]: Path program histogram: [6] [2024-11-28 02:41:05,047 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:41:05,047 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:41:05,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:41:05 BasicIcfg [2024-11-28 02:41:05,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:41:05,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:41:05,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:41:05,058 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:41:05,059 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:40:54" (3/4) ... [2024-11-28 02:41:05,062 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:41:05,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 02:41:05,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 02:41:05,066 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-28 02:41:05,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-11-28 02:41:05,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-28 02:41:05,074 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 02:41:05,074 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 02:41:05,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:41:05,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:41:05,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:41:05,185 INFO L158 Benchmark]: Toolchain (without parser) took 12673.20ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 117.6MB in the beginning and 132.2MB in the end (delta: -14.6MB). Peak memory consumption was 187.3MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,186 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:05,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.75ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.99ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 103.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,187 INFO L158 Benchmark]: Boogie Preprocessor took 51.09ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:05,187 INFO L158 Benchmark]: RCFGBuilder took 1234.73ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 76.5MB in the end (delta: 24.9MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,187 INFO L158 Benchmark]: TraceAbstraction took 10845.33ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 75.9MB in the beginning and 137.3MB in the end (delta: -61.4MB). Peak memory consumption was 139.7MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,188 INFO L158 Benchmark]: Witness Printer took 126.86ms. Allocated memory is still 343.9MB. Free memory was 137.3MB in the beginning and 132.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:05,194 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.75ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.4MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.99ms. Allocated memory is still 142.6MB. Free memory was 105.4MB in the beginning and 103.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.09ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1234.73ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 76.5MB in the end (delta: 24.9MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10845.33ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 75.9MB in the beginning and 137.3MB in the end (delta: -61.4MB). Peak memory consumption was 139.7MB. Max. memory is 16.1GB. * Witness Printer took 126.86ms. Allocated memory is still 343.9MB. Free memory was 137.3MB in the beginning and 132.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 29 locations, 4 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: 10.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 0.3s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 1231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 02:41:05,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3fc8672-872d-4cc8-86f3-4bf1970eb7a5/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