./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya --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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:52:54,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:52:54,975 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:52:54,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:52:54,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:52:55,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:52:55,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:52:55,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:52:55,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:52:55,005 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:52:55,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:52:55,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:52:55,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:52:55,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:52:55,008 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:52:55,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:52:55,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:52:55,010 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:52:55,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:52:55,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:52:55,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:52:55,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:52:55,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:52:55,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:52:55,013 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:52:55,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:52:55,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:52:55,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:52:55,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:52:55,015 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:52:55,016 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:52:55,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:52:55,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:52:55,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:52:55,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:52:55,017 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:52:55,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:52:55,018 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:52:55,018 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:52:55,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:52:55,018 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:52:55,019 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:52:55,019 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_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2023-11-29 05:52:55,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:52:55,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:52:55,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:52:55,265 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:52:55,266 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:52:55,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-29 05:52:57,986 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:52:58,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:52:58,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-29 05:52:58,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/data/d0d63b18c/650027dbc512450c883348dfad1a5361/FLAG5dc76bf70 [2023-11-29 05:52:58,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/data/d0d63b18c/650027dbc512450c883348dfad1a5361 [2023-11-29 05:52:58,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:52:58,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:52:58,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:52:58,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:52:58,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:52:58,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:52:58" (1/1) ... [2023-11-29 05:52:58,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37cfaea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:58, skipping insertion in model container [2023-11-29 05:52:58,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:52:58" (1/1) ... [2023-11-29 05:52:58,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:52:58,768 WARN L240 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_063427d2-c07f-42d8-b49c-d2dc80769348/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-29 05:52:58,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:52:58,936 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:52:58,948 WARN L240 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_063427d2-c07f-42d8-b49c-d2dc80769348/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-11-29 05:52:58,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:52:59,009 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:52:59,010 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:52:59,017 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:52:59,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59 WrapperNode [2023-11-29 05:52:59,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:52:59,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:52:59,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:52:59,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:52:59,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,063 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-11-29 05:52:59,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:52:59,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:52:59,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:52:59,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:52:59,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,094 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2023-11-29 05:52:59,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:52:59,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:52:59,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:52:59,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:52:59,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (1/1) ... [2023-11-29 05:52:59,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:52:59,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:52:59,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:52:59,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:52:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:52:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:52:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:52:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:52:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:52:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 05:52:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:52:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:52:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:52:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 05:52:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 05:52:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 05:52:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 05:52:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 05:52:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 05:52:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-29 05:52:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-29 05:52:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:52:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:52:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:52:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:52:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:52:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 05:52:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:52:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:52:59,184 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 05:52:59,334 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:52:59,336 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:52:59,500 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:52:59,605 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:52:59,606 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:52:59,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:52:59 BoogieIcfgContainer [2023-11-29 05:52:59,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:52:59,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:52:59,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:52:59,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:52:59,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:52:58" (1/3) ... [2023-11-29 05:52:59,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fbbe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:52:59, skipping insertion in model container [2023-11-29 05:52:59,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:52:59" (2/3) ... [2023-11-29 05:52:59,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fbbe35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:52:59, skipping insertion in model container [2023-11-29 05:52:59,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:52:59" (3/3) ... [2023-11-29 05:52:59,614 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-29 05:52:59,621 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:52:59,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:52:59,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:52:59,630 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:52:59,677 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:52:59,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2023-11-29 05:52:59,738 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2023-11-29 05:52:59,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:52:59,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-11-29 05:52:59,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2023-11-29 05:52:59,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2023-11-29 05:52:59,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:52:59,758 INFO L357 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, mHoare=true, 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;@7000df7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:52:59,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-29 05:52:59,772 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:52:59,772 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-29 05:52:59,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:52:59,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:52:59,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:52:59,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:52:59,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:52:59,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1502492618, now seen corresponding path program 1 times [2023-11-29 05:52:59,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:52:59,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315200700] [2023-11-29 05:52:59,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:52:59,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:52:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:00,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:00,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:00,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315200700] [2023-11-29 05:53:00,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315200700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:00,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:00,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:53:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222386713] [2023-11-29 05:53:00,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:00,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:53:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:00,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:53:00,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:53:00,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2023-11-29 05:53:00,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-11-29 05:53:00,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:00,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2023-11-29 05:53:00,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:00,731 INFO L124 PetriNetUnfolderBase]: 1260/2156 cut-off events. [2023-11-29 05:53:00,731 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-29 05:53:00,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4064 conditions, 2156 events. 1260/2156 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 13296 event pairs, 340 based on Foata normal form. 81/2226 useless extension candidates. Maximal degree in co-relation 4052. Up to 936 conditions per place. [2023-11-29 05:53:00,758 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 33 selfloop transitions, 6 changer transitions 1/58 dead transitions. [2023-11-29 05:53:00,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 217 flow [2023-11-29 05:53:00,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:53:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:53:00,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2023-11-29 05:53:00,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2023-11-29 05:53:00,771 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 134 transitions. [2023-11-29 05:53:00,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 134 transitions. [2023-11-29 05:53:00,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:00,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 134 transitions. [2023-11-29 05:53:00,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:53:00,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2023-11-29 05:53:00,782 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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) [2023-11-29 05:53:00,784 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 4 states and 134 transitions. [2023-11-29 05:53:00,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 217 flow [2023-11-29 05:53:00,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 58 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:53:00,791 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 126 flow [2023-11-29 05:53:00,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2023-11-29 05:53:00,796 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2023-11-29 05:53:00,796 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 126 flow [2023-11-29 05:53:00,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2023-11-29 05:53:00,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:00,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:53:00,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:53:00,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:00,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:00,798 INFO L85 PathProgramCache]: Analyzing trace with hash 664129426, now seen corresponding path program 1 times [2023-11-29 05:53:00,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:00,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775996933] [2023-11-29 05:53:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:01,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:01,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775996933] [2023-11-29 05:53:01,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775996933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:01,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:01,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:53:01,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142397183] [2023-11-29 05:53:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:01,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:53:01,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:01,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:53:01,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:53:01,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2023-11-29 05:53:01,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2023-11-29 05:53:01,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:01,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2023-11-29 05:53:01,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:01,375 INFO L124 PetriNetUnfolderBase]: 1180/2019 cut-off events. [2023-11-29 05:53:01,376 INFO L125 PetriNetUnfolderBase]: For 638/643 co-relation queries the response was YES. [2023-11-29 05:53:01,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4774 conditions, 2019 events. 1180/2019 cut-off events. For 638/643 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 12044 event pairs, 132 based on Foata normal form. 82/2092 useless extension candidates. Maximal degree in co-relation 4762. Up to 856 conditions per place. [2023-11-29 05:53:01,395 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 42 selfloop transitions, 10 changer transitions 1/71 dead transitions. [2023-11-29 05:53:01,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 71 transitions, 319 flow [2023-11-29 05:53:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:53:01,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:53:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2023-11-29 05:53:01,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2023-11-29 05:53:01,399 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 170 transitions. [2023-11-29 05:53:01,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 170 transitions. [2023-11-29 05:53:01,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:01,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 170 transitions. [2023-11-29 05:53:01,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 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) [2023-11-29 05:53:01,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-29 05:53:01,403 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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) [2023-11-29 05:53:01,403 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 126 flow. Second operand 5 states and 170 transitions. [2023-11-29 05:53:01,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 71 transitions, 319 flow [2023-11-29 05:53:01,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 71 transitions, 308 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-29 05:53:01,408 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 178 flow [2023-11-29 05:53:01,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2023-11-29 05:53:01,409 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2023-11-29 05:53:01,409 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 178 flow [2023-11-29 05:53:01,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2023-11-29 05:53:01,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:01,410 INFO L208 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] [2023-11-29 05:53:01,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:53:01,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:01,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1962740102, now seen corresponding path program 1 times [2023-11-29 05:53:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028611782] [2023-11-29 05:53:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:01,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:01,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028611782] [2023-11-29 05:53:01,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028611782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:01,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:01,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:53:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609985961] [2023-11-29 05:53:01,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:01,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:53:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:01,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:53:01,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:53:01,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2023-11-29 05:53:01,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2023-11-29 05:53:01,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:01,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2023-11-29 05:53:01,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:01,903 INFO L124 PetriNetUnfolderBase]: 960/1623 cut-off events. [2023-11-29 05:53:01,903 INFO L125 PetriNetUnfolderBase]: For 1501/1511 co-relation queries the response was YES. [2023-11-29 05:53:01,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4436 conditions, 1623 events. 960/1623 cut-off events. For 1501/1511 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8654 event pairs, 36 based on Foata normal form. 76/1690 useless extension candidates. Maximal degree in co-relation 4422. Up to 592 conditions per place. [2023-11-29 05:53:01,913 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 49 selfloop transitions, 14 changer transitions 1/82 dead transitions. [2023-11-29 05:53:01,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 82 transitions, 426 flow [2023-11-29 05:53:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:53:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:53:01,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2023-11-29 05:53:01,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2023-11-29 05:53:01,916 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 204 transitions. [2023-11-29 05:53:01,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 204 transitions. [2023-11-29 05:53:01,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:01,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 204 transitions. [2023-11-29 05:53:01,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 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) [2023-11-29 05:53:01,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:01,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:01,920 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 178 flow. Second operand 6 states and 204 transitions. [2023-11-29 05:53:01,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 82 transitions, 426 flow [2023-11-29 05:53:01,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 396 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 05:53:01,926 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 228 flow [2023-11-29 05:53:01,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=59, PETRI_TRANSITIONS=50} [2023-11-29 05:53:01,927 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2023-11-29 05:53:01,927 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 228 flow [2023-11-29 05:53:01,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2023-11-29 05:53:01,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:01,928 INFO L208 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] [2023-11-29 05:53:01,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:53:01,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:01,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1672710086, now seen corresponding path program 1 times [2023-11-29 05:53:01,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:01,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94014286] [2023-11-29 05:53:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:01,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:02,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:02,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94014286] [2023-11-29 05:53:02,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94014286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:02,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:02,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:53:02,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960019346] [2023-11-29 05:53:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:02,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:53:02,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:53:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:53:02,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2023-11-29 05:53:02,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 50 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2023-11-29 05:53:02,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:02,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2023-11-29 05:53:02,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:02,342 INFO L124 PetriNetUnfolderBase]: 680/1095 cut-off events. [2023-11-29 05:53:02,342 INFO L125 PetriNetUnfolderBase]: For 1930/1940 co-relation queries the response was YES. [2023-11-29 05:53:02,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3429 conditions, 1095 events. 680/1095 cut-off events. For 1930/1940 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4719 event pairs, 16 based on Foata normal form. 52/1138 useless extension candidates. Maximal degree in co-relation 3414. Up to 368 conditions per place. [2023-11-29 05:53:02,350 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 46 selfloop transitions, 18 changer transitions 1/83 dead transitions. [2023-11-29 05:53:02,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 83 transitions, 440 flow [2023-11-29 05:53:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:53:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 05:53:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2023-11-29 05:53:02,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2023-11-29 05:53:02,353 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 228 transitions. [2023-11-29 05:53:02,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 228 transitions. [2023-11-29 05:53:02,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:02,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 228 transitions. [2023-11-29 05:53:02,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 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) [2023-11-29 05:53:02,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 05:53:02,356 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 05:53:02,356 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 228 flow. Second operand 7 states and 228 transitions. [2023-11-29 05:53:02,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 83 transitions, 440 flow [2023-11-29 05:53:02,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 83 transitions, 394 flow, removed 9 selfloop flow, removed 5 redundant places. [2023-11-29 05:53:02,363 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 238 flow [2023-11-29 05:53:02,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=238, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2023-11-29 05:53:02,364 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2023-11-29 05:53:02,364 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 238 flow [2023-11-29 05:53:02,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2023-11-29 05:53:02,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:02,365 INFO L208 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] [2023-11-29 05:53:02,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:53:02,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:02,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1403372769, now seen corresponding path program 1 times [2023-11-29 05:53:02,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:02,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389384164] [2023-11-29 05:53:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:02,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:02,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389384164] [2023-11-29 05:53:02,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389384164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:02,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:02,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:53:02,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63651565] [2023-11-29 05:53:02,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:02,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:53:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:02,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:53:02,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:53:02,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 45 [2023-11-29 05:53:02,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 238 flow. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 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) [2023-11-29 05:53:02,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:02,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 45 [2023-11-29 05:53:02,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:02,922 INFO L124 PetriNetUnfolderBase]: 1625/2866 cut-off events. [2023-11-29 05:53:02,922 INFO L125 PetriNetUnfolderBase]: For 1921/2000 co-relation queries the response was YES. [2023-11-29 05:53:02,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6936 conditions, 2866 events. 1625/2866 cut-off events. For 1921/2000 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 18310 event pairs, 555 based on Foata normal form. 16/2718 useless extension candidates. Maximal degree in co-relation 6920. Up to 802 conditions per place. [2023-11-29 05:53:02,938 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 31 selfloop transitions, 3 changer transitions 15/77 dead transitions. [2023-11-29 05:53:02,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 77 transitions, 400 flow [2023-11-29 05:53:02,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:53:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:53:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions. [2023-11-29 05:53:02,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2023-11-29 05:53:02,940 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 176 transitions. [2023-11-29 05:53:02,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 176 transitions. [2023-11-29 05:53:02,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:02,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 176 transitions. [2023-11-29 05:53:02,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2023-11-29 05:53:02,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:02,942 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:02,942 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 238 flow. Second operand 6 states and 176 transitions. [2023-11-29 05:53:02,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 77 transitions, 400 flow [2023-11-29 05:53:02,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 294 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-11-29 05:53:02,960 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 160 flow [2023-11-29 05:53:02,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2023-11-29 05:53:02,961 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2023-11-29 05:53:02,961 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 160 flow [2023-11-29 05:53:02,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 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) [2023-11-29 05:53:02,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:02,962 INFO L208 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] [2023-11-29 05:53:02,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:53:02,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:02,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:02,963 INFO L85 PathProgramCache]: Analyzing trace with hash 178696385, now seen corresponding path program 2 times [2023-11-29 05:53:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:02,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538476913] [2023-11-29 05:53:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:02,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:03,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:03,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:03,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538476913] [2023-11-29 05:53:03,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538476913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:03,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:03,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:53:03,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814425356] [2023-11-29 05:53:03,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:03,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:53:03,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:03,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:53:03,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:53:03,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2023-11-29 05:53:03,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2023-11-29 05:53:03,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:03,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2023-11-29 05:53:03,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:03,538 INFO L124 PetriNetUnfolderBase]: 1536/2684 cut-off events. [2023-11-29 05:53:03,538 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2023-11-29 05:53:03,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5371 conditions, 2684 events. 1536/2684 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 17088 event pairs, 516 based on Foata normal form. 16/2267 useless extension candidates. Maximal degree in co-relation 5357. Up to 978 conditions per place. [2023-11-29 05:53:03,558 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 35 selfloop transitions, 2 changer transitions 11/80 dead transitions. [2023-11-29 05:53:03,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 80 transitions, 326 flow [2023-11-29 05:53:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:53:03,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:53:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 193 transitions. [2023-11-29 05:53:03,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7148148148148148 [2023-11-29 05:53:03,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 193 transitions. [2023-11-29 05:53:03,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 193 transitions. [2023-11-29 05:53:03,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:03,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 193 transitions. [2023-11-29 05:53:03,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 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) [2023-11-29 05:53:03,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:03,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:03,565 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 160 flow. Second operand 6 states and 193 transitions. [2023-11-29 05:53:03,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 80 transitions, 326 flow [2023-11-29 05:53:03,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 316 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-29 05:53:03,569 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 169 flow [2023-11-29 05:53:03,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2023-11-29 05:53:03,570 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 12 predicate places. [2023-11-29 05:53:03,570 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 169 flow [2023-11-29 05:53:03,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2023-11-29 05:53:03,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:03,571 INFO L208 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] [2023-11-29 05:53:03,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:53:03,571 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:03,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2042693327, now seen corresponding path program 3 times [2023-11-29 05:53:03,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:03,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491488677] [2023-11-29 05:53:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:03,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:03,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:03,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491488677] [2023-11-29 05:53:03,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491488677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:03,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:03,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:53:03,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697252477] [2023-11-29 05:53:03,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:53:03,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:03,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:53:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:53:03,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 45 [2023-11-29 05:53:03,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2023-11-29 05:53:03,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:03,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 45 [2023-11-29 05:53:03,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:04,337 INFO L124 PetriNetUnfolderBase]: 3525/6260 cut-off events. [2023-11-29 05:53:04,337 INFO L125 PetriNetUnfolderBase]: For 886/888 co-relation queries the response was YES. [2023-11-29 05:53:04,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13093 conditions, 6260 events. 3525/6260 cut-off events. For 886/888 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 47100 event pairs, 827 based on Foata normal form. 17/5788 useless extension candidates. Maximal degree in co-relation 13078. Up to 2390 conditions per place. [2023-11-29 05:53:04,364 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 9 changer transitions 20/91 dead transitions. [2023-11-29 05:53:04,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 91 transitions, 403 flow [2023-11-29 05:53:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:53:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 05:53:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 208 transitions. [2023-11-29 05:53:04,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6603174603174603 [2023-11-29 05:53:04,369 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 208 transitions. [2023-11-29 05:53:04,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 208 transitions. [2023-11-29 05:53:04,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:04,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 208 transitions. [2023-11-29 05:53:04,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 29.714285714285715) internal successors, (208), 7 states have internal predecessors, (208), 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) [2023-11-29 05:53:04,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 05:53:04,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 45.0) internal successors, (360), 8 states have internal predecessors, (360), 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) [2023-11-29 05:53:04,372 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 169 flow. Second operand 7 states and 208 transitions. [2023-11-29 05:53:04,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 91 transitions, 403 flow [2023-11-29 05:53:04,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 396 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-29 05:53:04,380 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 239 flow [2023-11-29 05:53:04,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2023-11-29 05:53:04,381 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2023-11-29 05:53:04,381 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 239 flow [2023-11-29 05:53:04,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2023-11-29 05:53:04,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:53:04,382 INFO L208 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] [2023-11-29 05:53:04,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:53:04,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-29 05:53:04,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:53:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1837068439, now seen corresponding path program 4 times [2023-11-29 05:53:04,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:53:04,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201046698] [2023-11-29 05:53:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:53:04,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:53:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:53:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:53:04,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:53:04,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201046698] [2023-11-29 05:53:04,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201046698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:53:04,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:53:04,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:53:04,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117970059] [2023-11-29 05:53:04,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:53:04,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:53:04,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:53:04,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:53:04,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:53:04,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2023-11-29 05:53:04,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2023-11-29 05:53:04,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:53:04,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2023-11-29 05:53:04,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:53:05,194 INFO L124 PetriNetUnfolderBase]: 3473/6251 cut-off events. [2023-11-29 05:53:05,194 INFO L125 PetriNetUnfolderBase]: For 685/688 co-relation queries the response was YES. [2023-11-29 05:53:05,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13036 conditions, 6251 events. 3473/6251 cut-off events. For 685/688 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 50164 event pairs, 1373 based on Foata normal form. 17/5164 useless extension candidates. Maximal degree in co-relation 13025. Up to 2574 conditions per place. [2023-11-29 05:53:05,220 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2023-11-29 05:53:05,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 396 flow [2023-11-29 05:53:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:53:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:53:05,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2023-11-29 05:53:05,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6962962962962963 [2023-11-29 05:53:05,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2023-11-29 05:53:05,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2023-11-29 05:53:05,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:53:05,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2023-11-29 05:53:05,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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) [2023-11-29 05:53:05,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:05,227 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 45.0) internal successors, (315), 7 states have internal predecessors, (315), 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) [2023-11-29 05:53:05,228 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 239 flow. Second operand 6 states and 188 transitions. [2023-11-29 05:53:05,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 396 flow [2023-11-29 05:53:05,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 394 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-29 05:53:05,232 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2023-11-29 05:53:05,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2023-11-29 05:53:05,233 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2023-11-29 05:53:05,233 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2023-11-29 05:53:05,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2023-11-29 05:53:05,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-29 05:53:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2023-11-29 05:53:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-29 05:53:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-29 05:53:05,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-29 05:53:05,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:53:05,237 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2023-11-29 05:53:05,240 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:53:05,240 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:53:05,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:53:05 BasicIcfg [2023-11-29 05:53:05,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:53:05,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:53:05,246 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:53:05,246 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:53:05,247 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:52:59" (3/4) ... [2023-11-29 05:53:05,248 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:53:05,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-29 05:53:05,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-29 05:53:05,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-29 05:53:05,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-29 05:53:05,256 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2023-11-29 05:53:05,256 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-29 05:53:05,256 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:53:05,256 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:53:05,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:53:05,328 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:53:05,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:53:05,329 INFO L158 Benchmark]: Toolchain (without parser) took 6782.14ms. Allocated memory was 161.5MB in the beginning and 341.8MB in the end (delta: 180.4MB). Free memory was 126.0MB in the beginning and 219.5MB in the end (delta: -93.5MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,329 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:53:05,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.45ms. Allocated memory is still 161.5MB. Free memory was 126.0MB in the beginning and 117.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.29ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,331 INFO L158 Benchmark]: Boogie Preprocessor took 46.34ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,331 INFO L158 Benchmark]: RCFGBuilder took 494.93ms. Allocated memory is still 161.5MB. Free memory was 113.5MB in the beginning and 88.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,331 INFO L158 Benchmark]: TraceAbstraction took 5636.42ms. Allocated memory was 161.5MB in the beginning and 341.8MB in the end (delta: 180.4MB). Free memory was 88.3MB in the beginning and 223.7MB in the end (delta: -135.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,332 INFO L158 Benchmark]: Witness Printer took 82.54ms. Allocated memory is still 341.8MB. Free memory was 223.7MB in the beginning and 219.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:53:05,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.45ms. Allocated memory is still 161.5MB. Free memory was 126.0MB in the beginning and 117.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.29ms. Allocated memory is still 161.5MB. Free memory was 117.7MB in the beginning and 115.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.34ms. Allocated memory is still 161.5MB. Free memory was 115.6MB in the beginning and 113.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.93ms. Allocated memory is still 161.5MB. Free memory was 113.5MB in the beginning and 88.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5636.42ms. Allocated memory was 161.5MB in the beginning and 341.8MB in the end (delta: 180.4MB). Free memory was 88.3MB in the beginning and 223.7MB in the end (delta: -135.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 82.54ms. Allocated memory is still 341.8MB. Free memory was 223.7MB in the beginning and 219.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 169 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 145 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 867 IncrementalHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 24 mSDtfsCounter, 867 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=7, 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, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:53:05,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063427d2-c07f-42d8-b49c-d2dc80769348/bin/uautomizer-verify-BQ2R08f2Ya/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