./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX --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 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:59:22,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:59:22,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:59:22,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:59:22,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:59:22,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:59:22,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:59:22,735 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:59:22,737 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:59:22,739 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:59:22,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:59:22,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:59:22,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:59:22,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:59:22,745 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:59:22,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:59:22,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:59:22,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:59:22,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:59:22,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:59:22,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:59:22,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:59:22,755 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:59:22,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:59:22,756 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:59:22,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:59:22,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:59:22,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:59:22,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:59:22,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:59:22,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:59:22,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:59:22,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:59:22,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:59:22,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:59:22,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:59:22,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:59:22,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:59:22,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:59:22,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:59:22,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:59:22,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:59:22,767 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 [2024-11-08 16:59:23,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:59:23,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:59:23,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:59:23,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:59:23,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:59:23,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c Unable to find full path for "g++" [2024-11-08 16:59:25,760 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:59:26,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:59:26,153 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2024-11-08 16:59:26,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/data/72b07bb2d/6a1342dd0f994a7dbfdc5474d7bb88b5/FLAG35e52ca3f [2024-11-08 16:59:26,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/data/72b07bb2d/6a1342dd0f994a7dbfdc5474d7bb88b5 [2024-11-08 16:59:26,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:59:26,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:59:26,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:26,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:59:26,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:59:26,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24743bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26, skipping insertion in model container [2024-11-08 16:59:26,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:59:26,672 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_b83f224a-de69-4867-be67-be95fb0ab9c4/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-08 16:59:26,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:26,711 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:59:26,782 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_b83f224a-de69-4867-be67-be95fb0ab9c4/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c[4124,4137] [2024-11-08 16:59:26,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:59:26,821 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:59:26,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26 WrapperNode [2024-11-08 16:59:26,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:59:26,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:59:26,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:59:26,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:59:26,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,880 INFO L138 Inliner]: procedures = 24, calls = 48, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 309 [2024-11-08 16:59:26,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:59:26,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:59:26,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:59:26,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:59:26,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,927 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-08 16:59:26,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:59:26,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:59:26,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:59:26,967 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:59:26,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (1/1) ... [2024-11-08 16:59:26,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:59:26,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:27,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:59:27,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:59:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:59:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 16:59:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 16:59:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 16:59:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 16:59:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 16:59:27,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:59:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:59:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:59:27,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:59:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:59:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:59:27,066 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:59:27,268 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:59:27,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:59:28,145 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:59:28,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:59:28,757 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:59:28,757 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:59:28,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:59:28 BoogieIcfgContainer [2024-11-08 16:59:28,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:59:28,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:59:28,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:59:28,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:59:28,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:59:26" (1/3) ... [2024-11-08 16:59:28,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb7d525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:59:28, skipping insertion in model container [2024-11-08 16:59:28,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:59:26" (2/3) ... [2024-11-08 16:59:28,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb7d525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:59:28, skipping insertion in model container [2024-11-08 16:59:28,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:59:28" (3/3) ... [2024-11-08 16:59:28,777 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2024-11-08 16:59:28,803 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:59:28,804 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:59:28,804 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:59:28,932 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:59:28,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 65 transitions, 151 flow [2024-11-08 16:59:29,098 INFO L124 PetriNetUnfolderBase]: 14/62 cut-off events. [2024-11-08 16:59:29,099 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:59:29,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 62 events. 14/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 129 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2024-11-08 16:59:29,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 65 transitions, 151 flow [2024-11-08 16:59:29,112 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 61 transitions, 140 flow [2024-11-08 16:59:29,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:59:29,147 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;@2f180795, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:59:29,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-08 16:59:29,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:59:29,189 INFO L124 PetriNetUnfolderBase]: 14/60 cut-off events. [2024-11-08 16:59:29,189 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:59:29,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:29,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:29,191 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)] === [2024-11-08 16:59:29,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:29,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1507944187, now seen corresponding path program 1 times [2024-11-08 16:59:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:29,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156752415] [2024-11-08 16:59:29,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:29,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:29,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:29,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156752415] [2024-11-08 16:59:29,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156752415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:29,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:29,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:59:29,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194895226] [2024-11-08 16:59:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:29,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:59:29,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:59:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:59:29,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:59:29,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 140 flow. Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:29,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:29,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:59:29,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:30,289 INFO L124 PetriNetUnfolderBase]: 1231/2101 cut-off events. [2024-11-08 16:59:30,290 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2024-11-08 16:59:30,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3815 conditions, 2101 events. 1231/2101 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 11908 event pairs, 983 based on Foata normal form. 187/2040 useless extension candidates. Maximal degree in co-relation 3599. Up to 1581 conditions per place. [2024-11-08 16:59:30,327 INFO L140 encePairwiseOnDemand]: 63/65 looper letters, 33 selfloop transitions, 0 changer transitions 0/59 dead transitions. [2024-11-08 16:59:30,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 202 flow [2024-11-08 16:59:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:59:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 16:59:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 93 transitions. [2024-11-08 16:59:30,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2024-11-08 16:59:30,350 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 140 flow. Second operand 2 states and 93 transitions. [2024-11-08 16:59:30,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 202 flow [2024-11-08 16:59:30,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 190 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-08 16:59:30,365 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 124 flow [2024-11-08 16:59:30,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2024-11-08 16:59:30,376 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -5 predicate places. [2024-11-08 16:59:30,377 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 124 flow [2024-11-08 16:59:30,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:30,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:30,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:30,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:59:30,379 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)] === [2024-11-08 16:59:30,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:30,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1926198787, now seen corresponding path program 1 times [2024-11-08 16:59:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261460110] [2024-11-08 16:59:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:30,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261460110] [2024-11-08 16:59:30,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261460110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:30,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:30,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:30,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441101643] [2024-11-08 16:59:30,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:30,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:30,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:30,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:30,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:30,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:59:30,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:30,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:30,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:59:30,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:31,445 INFO L124 PetriNetUnfolderBase]: 1072/1920 cut-off events. [2024-11-08 16:59:31,445 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 16:59:31,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3456 conditions, 1920 events. 1072/1920 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 11179 event pairs, 349 based on Foata normal form. 51/1761 useless extension candidates. Maximal degree in co-relation 3453. Up to 1040 conditions per place. [2024-11-08 16:59:31,465 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 46 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-08 16:59:31,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 252 flow [2024-11-08 16:59:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:59:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-08 16:59:31,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6974358974358974 [2024-11-08 16:59:31,469 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 124 flow. Second operand 3 states and 136 transitions. [2024-11-08 16:59:31,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 252 flow [2024-11-08 16:59:31,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 74 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:59:31,474 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 136 flow [2024-11-08 16:59:31,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2024-11-08 16:59:31,475 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2024-11-08 16:59:31,476 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 136 flow [2024-11-08 16:59:31,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:31,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:31,477 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:31,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:59:31,478 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)] === [2024-11-08 16:59:31,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1214786215, now seen corresponding path program 2 times [2024-11-08 16:59:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026026860] [2024-11-08 16:59:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:31,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:31,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026026860] [2024-11-08 16:59:31,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026026860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:31,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:31,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:31,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594282202] [2024-11-08 16:59:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:31,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:31,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:31,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:31,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:59:31,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:31,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:31,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:59:31,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:32,363 INFO L124 PetriNetUnfolderBase]: 2012/3527 cut-off events. [2024-11-08 16:59:32,363 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-08 16:59:32,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6727 conditions, 3527 events. 2012/3527 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 22004 event pairs, 836 based on Foata normal form. 1/3148 useless extension candidates. Maximal degree in co-relation 6722. Up to 1419 conditions per place. [2024-11-08 16:59:32,393 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 52 selfloop transitions, 2 changer transitions 4/84 dead transitions. [2024-11-08 16:59:32,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 312 flow [2024-11-08 16:59:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:59:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2024-11-08 16:59:32,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7384615384615385 [2024-11-08 16:59:32,397 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 136 flow. Second operand 3 states and 144 transitions. [2024-11-08 16:59:32,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 312 flow [2024-11-08 16:59:32,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 309 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:59:32,403 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 146 flow [2024-11-08 16:59:32,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2024-11-08 16:59:32,405 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 0 predicate places. [2024-11-08 16:59:32,406 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 146 flow [2024-11-08 16:59:32,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:32,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:32,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:32,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:59:32,407 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)] === [2024-11-08 16:59:32,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash -949269362, now seen corresponding path program 1 times [2024-11-08 16:59:32,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628528392] [2024-11-08 16:59:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:32,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:32,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628528392] [2024-11-08 16:59:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628528392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:32,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654486788] [2024-11-08 16:59:32,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:32,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:32,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:32,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:32,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:32,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-08 16:59:32,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:32,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:32,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-08 16:59:32,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:33,258 INFO L124 PetriNetUnfolderBase]: 2001/3543 cut-off events. [2024-11-08 16:59:33,259 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-08 16:59:33,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6901 conditions, 3543 events. 2001/3543 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 21115 event pairs, 699 based on Foata normal form. 45/3165 useless extension candidates. Maximal degree in co-relation 6895. Up to 2404 conditions per place. [2024-11-08 16:59:33,292 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 46 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-08 16:59:33,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 75 transitions, 279 flow [2024-11-08 16:59:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:59:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-08 16:59:33,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6871794871794872 [2024-11-08 16:59:33,296 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 146 flow. Second operand 3 states and 134 transitions. [2024-11-08 16:59:33,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 75 transitions, 279 flow [2024-11-08 16:59:33,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:59:33,304 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 163 flow [2024-11-08 16:59:33,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=59, PETRI_TRANSITIONS=63} [2024-11-08 16:59:33,305 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2024-11-08 16:59:33,306 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 163 flow [2024-11-08 16:59:33,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:33,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:33,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:33,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:59:33,308 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)] === [2024-11-08 16:59:33,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:33,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1150426358, now seen corresponding path program 2 times [2024-11-08 16:59:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:33,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022182770] [2024-11-08 16:59:33,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:33,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:33,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:33,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022182770] [2024-11-08 16:59:33,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022182770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:33,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:33,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:59:33,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903045217] [2024-11-08 16:59:33,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:33,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:59:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:59:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:59:33,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 65 [2024-11-08 16:59:33,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 63 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:33,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:33,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 65 [2024-11-08 16:59:33,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:34,335 INFO L124 PetriNetUnfolderBase]: 2698/4834 cut-off events. [2024-11-08 16:59:34,336 INFO L125 PetriNetUnfolderBase]: For 945/967 co-relation queries the response was YES. [2024-11-08 16:59:34,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9949 conditions, 4834 events. 2698/4834 cut-off events. For 945/967 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 31032 event pairs, 903 based on Foata normal form. 0/4264 useless extension candidates. Maximal degree in co-relation 9942. Up to 2077 conditions per place. [2024-11-08 16:59:34,376 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 50 selfloop transitions, 3 changer transitions 1/77 dead transitions. [2024-11-08 16:59:34,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 309 flow [2024-11-08 16:59:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:59:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:59:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-11-08 16:59:34,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6615384615384615 [2024-11-08 16:59:34,379 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 163 flow. Second operand 3 states and 129 transitions. [2024-11-08 16:59:34,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 309 flow [2024-11-08 16:59:34,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 77 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:59:34,382 INFO L231 Difference]: Finished difference. Result has 62 places, 62 transitions, 172 flow [2024-11-08 16:59:34,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=62, PETRI_TRANSITIONS=62} [2024-11-08 16:59:34,384 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2024-11-08 16:59:34,384 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 62 transitions, 172 flow [2024-11-08 16:59:34,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:34,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:34,385 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:34,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:59:34,386 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)] === [2024-11-08 16:59:34,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash -436737154, now seen corresponding path program 1 times [2024-11-08 16:59:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224731298] [2024-11-08 16:59:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:59:34,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:34,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224731298] [2024-11-08 16:59:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224731298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:34,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671324920] [2024-11-08 16:59:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:34,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:34,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:34,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:34,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:59:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:34,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:59:34,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:59:34,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671324920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:34,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:59:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-08 16:59:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479075485] [2024-11-08 16:59:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:34,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:34,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:34,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:59:34,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 65 [2024-11-08 16:59:34,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 62 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:34,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:34,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 65 [2024-11-08 16:59:34,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:35,791 INFO L124 PetriNetUnfolderBase]: 2062/3796 cut-off events. [2024-11-08 16:59:35,791 INFO L125 PetriNetUnfolderBase]: For 1324/1324 co-relation queries the response was YES. [2024-11-08 16:59:35,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8197 conditions, 3796 events. 2062/3796 cut-off events. For 1324/1324 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 23825 event pairs, 1585 based on Foata normal form. 13/3381 useless extension candidates. Maximal degree in co-relation 8189. Up to 2815 conditions per place. [2024-11-08 16:59:35,829 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 41 selfloop transitions, 2 changer transitions 28/91 dead transitions. [2024-11-08 16:59:35,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 375 flow [2024-11-08 16:59:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:35,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:59:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-11-08 16:59:35,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5661538461538461 [2024-11-08 16:59:35,832 INFO L175 Difference]: Start difference. First operand has 62 places, 62 transitions, 172 flow. Second operand 5 states and 184 transitions. [2024-11-08 16:59:35,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 375 flow [2024-11-08 16:59:35,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 369 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:59:35,838 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 190 flow [2024-11-08 16:59:35,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2024-11-08 16:59:35,839 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-08 16:59:35,839 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 190 flow [2024-11-08 16:59:35,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:35,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:35,840 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:35,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:59:36,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:36,042 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 16:59:36,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash -727042897, now seen corresponding path program 1 times [2024-11-08 16:59:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685036111] [2024-11-08 16:59:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:59:36,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:36,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685036111] [2024-11-08 16:59:36,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685036111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:36,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197116991] [2024-11-08 16:59:36,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:36,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:36,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:36,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:36,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:59:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:36,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:59:36,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:59:36,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197116991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:36,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:59:36,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-08 16:59:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437722967] [2024-11-08 16:59:36,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:36,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:36,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:36,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:36,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:59:36,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 65 [2024-11-08 16:59:36,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:36,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:36,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 65 [2024-11-08 16:59:36,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:37,591 INFO L124 PetriNetUnfolderBase]: 2703/5030 cut-off events. [2024-11-08 16:59:37,592 INFO L125 PetriNetUnfolderBase]: For 1466/1466 co-relation queries the response was YES. [2024-11-08 16:59:37,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10889 conditions, 5030 events. 2703/5030 cut-off events. For 1466/1466 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 34183 event pairs, 2124 based on Foata normal form. 97/4534 useless extension candidates. Maximal degree in co-relation 10878. Up to 2816 conditions per place. [2024-11-08 16:59:37,649 INFO L140 encePairwiseOnDemand]: 58/65 looper letters, 42 selfloop transitions, 2 changer transitions 26/90 dead transitions. [2024-11-08 16:59:37,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 413 flow [2024-11-08 16:59:37,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:59:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-11-08 16:59:37,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.556923076923077 [2024-11-08 16:59:37,652 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 190 flow. Second operand 5 states and 181 transitions. [2024-11-08 16:59:37,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 413 flow [2024-11-08 16:59:37,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 395 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-08 16:59:37,660 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 198 flow [2024-11-08 16:59:37,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2024-11-08 16:59:37,664 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places. [2024-11-08 16:59:37,664 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 198 flow [2024-11-08 16:59:37,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:37,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:37,666 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:37,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:37,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:37,868 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 16:59:37,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:37,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1708173902, now seen corresponding path program 1 times [2024-11-08 16:59:37,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:37,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923046320] [2024-11-08 16:59:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:37,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:59:38,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923046320] [2024-11-08 16:59:38,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923046320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:38,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904874609] [2024-11-08 16:59:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:38,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:38,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:38,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:38,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:59:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:38,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:59:38,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:59:38,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:59:38,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904874609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:38,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:59:38,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-08 16:59:38,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605256306] [2024-11-08 16:59:38,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:38,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:59:38,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:59:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:59:38,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 65 [2024-11-08 16:59:38,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:38,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:38,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 65 [2024-11-08 16:59:38,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:39,520 INFO L124 PetriNetUnfolderBase]: 2732/5095 cut-off events. [2024-11-08 16:59:39,520 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES. [2024-11-08 16:59:39,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11017 conditions, 5095 events. 2732/5095 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 34392 event pairs, 2157 based on Foata normal form. 82/4593 useless extension candidates. Maximal degree in co-relation 11005. Up to 2817 conditions per place. [2024-11-08 16:59:39,569 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 43 selfloop transitions, 2 changer transitions 28/93 dead transitions. [2024-11-08 16:59:39,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 93 transitions, 438 flow [2024-11-08 16:59:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:59:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-11-08 16:59:39,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.56 [2024-11-08 16:59:39,572 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 198 flow. Second operand 5 states and 182 transitions. [2024-11-08 16:59:39,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 93 transitions, 438 flow [2024-11-08 16:59:39,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 93 transitions, 430 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-08 16:59:39,578 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 212 flow [2024-11-08 16:59:39,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-11-08 16:59:39,579 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2024-11-08 16:59:39,579 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 212 flow [2024-11-08 16:59:39,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:39,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:59:39,580 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:39,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:59:39,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:39,782 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-08 16:59:39,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:39,782 INFO L85 PathProgramCache]: Analyzing trace with hash -963941823, now seen corresponding path program 1 times [2024-11-08 16:59:39,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:39,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526855688] [2024-11-08 16:59:39,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:39,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:59:39,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:39,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526855688] [2024-11-08 16:59:39,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526855688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:59:39,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823898960] [2024-11-08 16:59:39,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:39,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:39,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:59:39,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:59:39,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:59:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:40,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:59:40,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:59:40,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2024-11-08 16:59:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:59:40,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:59:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:59:40,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823898960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:59:40,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:59:40,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-08 16:59:40,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226982986] [2024-11-08 16:59:40,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:59:40,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:59:40,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:40,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:59:40,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:40,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-08 16:59:40,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:40,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:59:40,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-08 16:59:40,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:59:41,271 INFO L124 PetriNetUnfolderBase]: 2077/3915 cut-off events. [2024-11-08 16:59:41,271 INFO L125 PetriNetUnfolderBase]: For 1166/1166 co-relation queries the response was YES. [2024-11-08 16:59:41,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8280 conditions, 3915 events. 2077/3915 cut-off events. For 1166/1166 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 25416 event pairs, 595 based on Foata normal form. 0/3600 useless extension candidates. Maximal degree in co-relation 8266. Up to 1185 conditions per place. [2024-11-08 16:59:41,302 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2024-11-08 16:59:41,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 108 transitions, 506 flow [2024-11-08 16:59:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:59:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 216 transitions. [2024-11-08 16:59:41,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646153846153846 [2024-11-08 16:59:41,304 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 212 flow. Second operand 5 states and 216 transitions. [2024-11-08 16:59:41,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 108 transitions, 506 flow [2024-11-08 16:59:41,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 108 transitions, 494 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-08 16:59:41,310 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-08 16:59:41,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-08 16:59:41,311 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places. [2024-11-08 16:59:41,312 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-08 16:59:41,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:59:41,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-08 16:59:41,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-08 16:59:41,319 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-08 16:59:41,320 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-08 16:59:41,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:59:41,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:59:41,522 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2024-11-08 16:59:41,527 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:59:41,528 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:59:41,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:59:41 BasicIcfg [2024-11-08 16:59:41,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:59:41,539 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:59:41,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:59:41,539 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:59:41,540 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:59:28" (3/4) ... [2024-11-08 16:59:41,544 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:59:41,549 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-08 16:59:41,549 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-08 16:59:41,549 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-08 16:59:41,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 183 nodes and edges [2024-11-08 16:59:41,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-08 16:59:41,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-08 16:59:41,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 16:59:41,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:59:41,722 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:59:41,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:59:41,723 INFO L158 Benchmark]: Toolchain (without parser) took 15528.12ms. Allocated memory was 182.5MB in the beginning and 371.2MB in the end (delta: 188.7MB). Free memory was 145.4MB in the beginning and 117.8MB in the end (delta: 27.7MB). Peak memory consumption was 218.8MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,727 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:59:41,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.22ms. Allocated memory is still 182.5MB. Free memory was 145.4MB in the beginning and 130.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.38ms. Allocated memory is still 182.5MB. Free memory was 130.3MB in the beginning and 128.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,729 INFO L158 Benchmark]: Boogie Preprocessor took 84.00ms. Allocated memory is still 182.5MB. Free memory was 128.0MB in the beginning and 124.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,729 INFO L158 Benchmark]: RCFGBuilder took 1791.56ms. Allocated memory is still 182.5MB. Free memory was 124.5MB in the beginning and 95.4MB in the end (delta: 29.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,730 INFO L158 Benchmark]: TraceAbstraction took 12774.50ms. Allocated memory was 182.5MB in the beginning and 371.2MB in the end (delta: 188.7MB). Free memory was 94.6MB in the beginning and 125.2MB in the end (delta: -30.6MB). Peak memory consumption was 157.7MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,732 INFO L158 Benchmark]: Witness Printer took 183.42ms. Allocated memory is still 371.2MB. Free memory was 125.2MB in the beginning and 117.8MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 16:59:41,735 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.22ms. Allocated memory is still 182.5MB. Free memory was 145.4MB in the beginning and 130.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.38ms. Allocated memory is still 182.5MB. Free memory was 130.3MB in the beginning and 128.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.00ms. Allocated memory is still 182.5MB. Free memory was 128.0MB in the beginning and 124.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1791.56ms. Allocated memory is still 182.5MB. Free memory was 124.5MB in the beginning and 95.4MB in the end (delta: 29.1MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 12774.50ms. Allocated memory was 182.5MB in the beginning and 371.2MB in the end (delta: 188.7MB). Free memory was 94.6MB in the beginning and 125.2MB in the end (delta: -30.6MB). Peak memory consumption was 157.7MB. Max. memory is 16.1GB. * Witness Printer took 183.42ms. Allocated memory is still 371.2MB. Free memory was 125.2MB in the beginning and 117.8MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 156]: 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, 84 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: 12.5s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 865 IncrementalHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 7 mSDtfsCounter, 865 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=8, InterpolantAutomatonStates: 34, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 620 NumberOfCodeBlocks, 620 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 663 ConstructedInterpolants, 0 QuantifiedInterpolants, 1486 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1296 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 83/89 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:59:41,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b83f224a-de69-4867-be67-be95fb0ab9c4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE