./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU --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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:09,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:09,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:18:09,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:09,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:09,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:09,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:09,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:09,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:18:09,846 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:18:09,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:09,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:09,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:09,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:09,855 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:09,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:09,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:09,856 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:09,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:09,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:09,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:09,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:09,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:09,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:09,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:09,862 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:09,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:09,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:09,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:09,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:09,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:18:09,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:09,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:09,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:09,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:09,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:09,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:09,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:09,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:09,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:09,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:09,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:09,869 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_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2024-10-31 22:18:10,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:10,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:10,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:10,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:10,182 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:10,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i Unable to find full path for "g++" [2024-10-31 22:18:12,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:12,540 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:12,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-10-31 22:18:12,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/data/7468e3f53/518097f0162a4351a2e8b995f815c8b8/FLAGfd717fefe [2024-10-31 22:18:12,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/data/7468e3f53/518097f0162a4351a2e8b995f815c8b8 [2024-10-31 22:18:12,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:12,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:12,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:12,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:12,858 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:12,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f0988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:12, skipping insertion in model container [2024-10-31 22:18:12,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:12" (1/1) ... [2024-10-31 22:18:12,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:13,151 WARN L251 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_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2024-10-31 22:18:13,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:13,577 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:13,595 WARN L251 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_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2024-10-31 22:18:13,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:13,739 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:13,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13 WrapperNode [2024-10-31 22:18:13,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:13,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:13,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:13,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:13,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,777 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,821 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2024-10-31 22:18:13,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:13,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:13,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:13,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:13,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,894 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:18:13,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:13,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:13,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:13,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:13,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (1/1) ... [2024-10-31 22:18:13,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:13,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:13,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:18:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:18:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:18:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:18:14,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:18:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:18:14,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:18:14,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:14,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:14,045 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:18:14,255 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:14,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:14,762 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:18:14,762 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:15,126 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:15,127 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:18:15,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:15 BoogieIcfgContainer [2024-10-31 22:18:15,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:15,133 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:15,134 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:15,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:15,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:12" (1/3) ... [2024-10-31 22:18:15,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c98490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:15, skipping insertion in model container [2024-10-31 22:18:15,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:13" (2/3) ... [2024-10-31 22:18:15,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c98490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:15, skipping insertion in model container [2024-10-31 22:18:15,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:15" (3/3) ... [2024-10-31 22:18:15,146 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-10-31 22:18:15,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:15,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:18:15,171 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:18:15,235 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:18:15,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 72 flow [2024-10-31 22:18:15,343 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-10-31 22:18:15,343 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:15,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-10-31 22:18:15,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 72 flow [2024-10-31 22:18:15,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 30 transitions, 66 flow [2024-10-31 22:18:15,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:15,383 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;@628312a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:15,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:18:15,396 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:15,396 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-31 22:18:15,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:15,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:15,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:15,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:15,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash -710585529, now seen corresponding path program 1 times [2024-10-31 22:18:15,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:15,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239384267] [2024-10-31 22:18:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:15,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:16,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:16,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239384267] [2024-10-31 22:18:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239384267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:16,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:16,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:18:16,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759747451] [2024-10-31 22:18:16,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:16,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:16,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:16,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-10-31 22:18:16,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-31 22:18:16,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:16,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-10-31 22:18:16,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:16,548 INFO L124 PetriNetUnfolderBase]: 176/352 cut-off events. [2024-10-31 22:18:16,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:16,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 352 events. 176/352 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1764 event pairs, 16 based on Foata normal form. 18/361 useless extension candidates. Maximal degree in co-relation 663. Up to 266 conditions per place. [2024-10-31 22:18:16,554 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 21 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2024-10-31 22:18:16,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 128 flow [2024-10-31 22:18:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:16,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-31 22:18:16,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2024-10-31 22:18:16,574 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 67 transitions. [2024-10-31 22:18:16,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 128 flow [2024-10-31 22:18:16,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:16,581 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 62 flow [2024-10-31 22:18:16,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-10-31 22:18:16,592 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-10-31 22:18:16,592 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 62 flow [2024-10-31 22:18:16,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-10-31 22:18:16,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:16,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:16,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:16,595 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:16,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1753067114, now seen corresponding path program 1 times [2024-10-31 22:18:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:16,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365626972] [2024-10-31 22:18:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:16,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:17,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365626972] [2024-10-31 22:18:17,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365626972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:17,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:17,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:17,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057234121] [2024-10-31 22:18:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:17,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:18:17,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:17,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:18:17,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:18:17,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-10-31 22:18:17,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:17,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:17,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-10-31 22:18:17,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:17,401 INFO L124 PetriNetUnfolderBase]: 221/465 cut-off events. [2024-10-31 22:18:17,401 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-31 22:18:17,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 465 events. 221/465 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2249 event pairs, 38 based on Foata normal form. 28/471 useless extension candidates. Maximal degree in co-relation 895. Up to 216 conditions per place. [2024-10-31 22:18:17,410 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 34 selfloop transitions, 4 changer transitions 1/47 dead transitions. [2024-10-31 22:18:17,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 186 flow [2024-10-31 22:18:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:18:17,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:18:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-10-31 22:18:17,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6328125 [2024-10-31 22:18:17,416 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 62 flow. Second operand 4 states and 81 transitions. [2024-10-31 22:18:17,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 186 flow [2024-10-31 22:18:17,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:17,419 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 84 flow [2024-10-31 22:18:17,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-10-31 22:18:17,421 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-10-31 22:18:17,421 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 84 flow [2024-10-31 22:18:17,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:17,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:17,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:17,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:17,423 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:17,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1039214016, now seen corresponding path program 1 times [2024-10-31 22:18:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:17,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006320514] [2024-10-31 22:18:17,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:17,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:17,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006320514] [2024-10-31 22:18:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006320514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:18:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250601578] [2024-10-31 22:18:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:17,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:18:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:17,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:18:17,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:18:17,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-10-31 22:18:17,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-10-31 22:18:17,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:17,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-10-31 22:18:17,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:18,235 INFO L124 PetriNetUnfolderBase]: 110/232 cut-off events. [2024-10-31 22:18:18,236 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-31 22:18:18,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 232 events. 110/232 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 809 event pairs, 26 based on Foata normal form. 18/242 useless extension candidates. Maximal degree in co-relation 537. Up to 101 conditions per place. [2024-10-31 22:18:18,238 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 28 selfloop transitions, 6 changer transitions 1/43 dead transitions. [2024-10-31 22:18:18,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 187 flow [2024-10-31 22:18:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:18:18,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:18:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-10-31 22:18:18,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-10-31 22:18:18,242 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 84 flow. Second operand 5 states and 87 transitions. [2024-10-31 22:18:18,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 187 flow [2024-10-31 22:18:18,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 178 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:18,248 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 100 flow [2024-10-31 22:18:18,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2024-10-31 22:18:18,250 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-10-31 22:18:18,250 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 100 flow [2024-10-31 22:18:18,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-10-31 22:18:18,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:18,251 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] [2024-10-31 22:18:18,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:18,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:18,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:18,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1541160680, now seen corresponding path program 1 times [2024-10-31 22:18:18,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:18,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209203675] [2024-10-31 22:18:18,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:18,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209203675] [2024-10-31 22:18:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209203675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:23,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:23,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-31 22:18:23,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809956575] [2024-10-31 22:18:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:23,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:18:23,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:18:23,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:18:24,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-10-31 22:18:24,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:24,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:24,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-10-31 22:18:24,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:24,703 INFO L124 PetriNetUnfolderBase]: 130/308 cut-off events. [2024-10-31 22:18:24,703 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-10-31 22:18:24,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 308 events. 130/308 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1236 event pairs, 38 based on Foata normal form. 4/307 useless extension candidates. Maximal degree in co-relation 681. Up to 135 conditions per place. [2024-10-31 22:18:24,706 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 25 selfloop transitions, 13 changer transitions 14/63 dead transitions. [2024-10-31 22:18:24,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 280 flow [2024-10-31 22:18:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:18:24,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:18:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 163 transitions. [2024-10-31 22:18:24,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509375 [2024-10-31 22:18:24,709 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 100 flow. Second operand 10 states and 163 transitions. [2024-10-31 22:18:24,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 280 flow [2024-10-31 22:18:24,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 246 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-31 22:18:24,712 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 147 flow [2024-10-31 22:18:24,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=147, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-10-31 22:18:24,713 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2024-10-31 22:18:24,713 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 147 flow [2024-10-31 22:18:24,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:24,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:24,714 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] [2024-10-31 22:18:24,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:18:24,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:24,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1589133984, now seen corresponding path program 2 times [2024-10-31 22:18:24,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:24,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028612314] [2024-10-31 22:18:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:25,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:25,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:25,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028612314] [2024-10-31 22:18:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028612314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:25,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:25,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:18:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571848514] [2024-10-31 22:18:25,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:25,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:18:25,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:18:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:18:25,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2024-10-31 22:18:25,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-10-31 22:18:25,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:25,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2024-10-31 22:18:25,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:26,211 INFO L124 PetriNetUnfolderBase]: 174/380 cut-off events. [2024-10-31 22:18:26,211 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-31 22:18:26,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 380 events. 174/380 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1585 event pairs, 36 based on Foata normal form. 4/376 useless extension candidates. Maximal degree in co-relation 911. Up to 176 conditions per place. [2024-10-31 22:18:26,214 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 28 selfloop transitions, 4 changer transitions 29/70 dead transitions. [2024-10-31 22:18:26,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 70 transitions, 369 flow [2024-10-31 22:18:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:18:26,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:18:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-31 22:18:26,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-10-31 22:18:26,217 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 147 flow. Second operand 6 states and 99 transitions. [2024-10-31 22:18:26,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 70 transitions, 369 flow [2024-10-31 22:18:26,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 70 transitions, 352 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-10-31 22:18:26,221 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 132 flow [2024-10-31 22:18:26,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2024-10-31 22:18:26,222 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-10-31 22:18:26,222 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 132 flow [2024-10-31 22:18:26,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-10-31 22:18:26,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:26,223 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] [2024-10-31 22:18:26,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:18:26,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:26,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1239153712, now seen corresponding path program 3 times [2024-10-31 22:18:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284924823] [2024-10-31 22:18:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:26,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:29,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:29,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284924823] [2024-10-31 22:18:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284924823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:29,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:18:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833527575] [2024-10-31 22:18:29,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:29,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:18:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:18:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:18:29,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-10-31 22:18:29,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 132 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 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) [2024-10-31 22:18:29,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:29,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-10-31 22:18:29,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:30,282 INFO L124 PetriNetUnfolderBase]: 84/216 cut-off events. [2024-10-31 22:18:30,282 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-31 22:18:30,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 216 events. 84/216 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 754 event pairs, 31 based on Foata normal form. 4/215 useless extension candidates. Maximal degree in co-relation 484. Up to 66 conditions per place. [2024-10-31 22:18:30,284 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 17 selfloop transitions, 5 changer transitions 21/54 dead transitions. [2024-10-31 22:18:30,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 262 flow [2024-10-31 22:18:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:18:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:18:30,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-10-31 22:18:30,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-10-31 22:18:30,286 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 132 flow. Second operand 9 states and 140 transitions. [2024-10-31 22:18:30,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 262 flow [2024-10-31 22:18:30,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 235 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-10-31 22:18:30,288 INFO L231 Difference]: Finished difference. Result has 54 places, 29 transitions, 106 flow [2024-10-31 22:18:30,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=29} [2024-10-31 22:18:30,289 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2024-10-31 22:18:30,290 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 29 transitions, 106 flow [2024-10-31 22:18:30,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 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) [2024-10-31 22:18:30,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:30,290 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] [2024-10-31 22:18:30,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:18:30,291 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-31 22:18:30,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:30,291 INFO L85 PathProgramCache]: Analyzing trace with hash -473308276, now seen corresponding path program 4 times [2024-10-31 22:18:30,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:30,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657439494] [2024-10-31 22:18:30,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:30,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:36,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:36,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657439494] [2024-10-31 22:18:36,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657439494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:36,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:36,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-31 22:18:36,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086336201] [2024-10-31 22:18:36,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:36,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:18:36,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:36,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:18:36,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:18:36,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-10-31 22:18:36,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 29 transitions, 106 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:36,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-10-31 22:18:36,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:36,882 INFO L124 PetriNetUnfolderBase]: 35/99 cut-off events. [2024-10-31 22:18:36,882 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 22:18:36,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 99 events. 35/99 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 10 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 231. Up to 35 conditions per place. [2024-10-31 22:18:36,883 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-10-31 22:18:36,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 39 transitions, 184 flow [2024-10-31 22:18:36,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:18:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:18:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 140 transitions. [2024-10-31 22:18:36,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-10-31 22:18:36,885 INFO L175 Difference]: Start difference. First operand has 54 places, 29 transitions, 106 flow. Second operand 10 states and 140 transitions. [2024-10-31 22:18:36,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 39 transitions, 184 flow [2024-10-31 22:18:36,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 158 flow, removed 3 selfloop flow, removed 12 redundant places. [2024-10-31 22:18:36,887 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-10-31 22:18:36,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-10-31 22:18:36,887 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2024-10-31 22:18:36,888 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-10-31 22:18:36,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:36,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-31 22:18:36,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-10-31 22:18:36,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-31 22:18:36,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-31 22:18:36,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-10-31 22:18:36,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:18:36,892 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-10-31 22:18:36,898 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:18:36,898 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:18:36,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:18:36 BasicIcfg [2024-10-31 22:18:36,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:18:36,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:18:36,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:18:36,904 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:18:36,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:15" (3/4) ... [2024-10-31 22:18:36,907 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:18:36,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-31 22:18:36,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-31 22:18:36,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-10-31 22:18:36,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-31 22:18:36,915 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 22:18:36,916 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:18:37,084 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:18:37,085 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:18:37,085 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:18:37,085 INFO L158 Benchmark]: Toolchain (without parser) took 24236.60ms. Allocated memory was 146.8MB in the beginning and 559.9MB in the end (delta: 413.1MB). Free memory was 106.8MB in the beginning and 373.1MB in the end (delta: -266.3MB). Peak memory consumption was 147.3MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,086 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:18:37,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.87ms. Allocated memory is still 146.8MB. Free memory was 106.4MB in the beginning and 78.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.16ms. Allocated memory is still 146.8MB. Free memory was 78.6MB in the beginning and 74.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,087 INFO L158 Benchmark]: Boogie Preprocessor took 117.80ms. Allocated memory is still 146.8MB. Free memory was 74.9MB in the beginning and 70.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,087 INFO L158 Benchmark]: RCFGBuilder took 1188.24ms. Allocated memory is still 146.8MB. Free memory was 70.7MB in the beginning and 65.3MB in the end (delta: 5.4MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,087 INFO L158 Benchmark]: TraceAbstraction took 21770.21ms. Allocated memory was 146.8MB in the beginning and 559.9MB in the end (delta: 413.1MB). Free memory was 64.1MB in the beginning and 382.6MB in the end (delta: -318.4MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,088 INFO L158 Benchmark]: Witness Printer took 180.73ms. Allocated memory is still 559.9MB. Free memory was 382.6MB in the beginning and 373.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:18:37,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.87ms. Allocated memory is still 146.8MB. Free memory was 106.4MB in the beginning and 78.6MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.16ms. Allocated memory is still 146.8MB. Free memory was 78.6MB in the beginning and 74.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.80ms. Allocated memory is still 146.8MB. Free memory was 74.9MB in the beginning and 70.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.24ms. Allocated memory is still 146.8MB. Free memory was 70.7MB in the beginning and 65.3MB in the end (delta: 5.4MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21770.21ms. Allocated memory was 146.8MB in the beginning and 559.9MB in the end (delta: 413.1MB). Free memory was 64.1MB in the beginning and 382.6MB in the end (delta: -318.4MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. * Witness Printer took 180.73ms. Allocated memory is still 559.9MB. Free memory was 382.6MB in the beginning and 373.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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 5 procedures, 51 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 905 IncrementalHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 6 mSDtfsCounter, 905 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=4, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 16.5s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 1882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:18:37,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1696a4b-2d18-412f-83f9-0aafa2ca0c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE