./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:10:27,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:10:27,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:10:27,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:10:27,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:10:27,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:10:27,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:10:27,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:10:27,850 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:10:27,853 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:10:27,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:10:27,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:10:27,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:10:27,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:10:27,856 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:10:27,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:10:27,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:10:27,857 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:10:27,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:10:27,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:10:27,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:10:27,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:10:27,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:10:27,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:10:27,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:10:27,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:10:27,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:10:27,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:10:27,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:10:27,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:10:27,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:10:27,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:10:27,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:10:27,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:10:27,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:10:27,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:10:27,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:10:27,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:10:27,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:10:27,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:10:27,863 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:10:27,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:10:27,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:10:27,864 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2024-01-27 15:10:28,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:10:28,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:10:28,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:10:28,098 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:10:28,099 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:10:28,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-27 15:10:29,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:10:29,373 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:10:29,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-27 15:10:29,390 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8447497/25fe56d933f940c9803bc802f41571cf/FLAG89ab622dd [2024-01-27 15:10:29,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8447497/25fe56d933f940c9803bc802f41571cf [2024-01-27 15:10:29,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:10:29,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:10:29,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:10:29,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:10:29,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:10:29,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0b291f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29, skipping insertion in model container [2024-01-27 15:10:29,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:10:29,596 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-27 15:10:29,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:10:29,798 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:10:29,823 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-01-27 15:10:29,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:10:29,865 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:10:29,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29 WrapperNode [2024-01-27 15:10:29,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:10:29,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:10:29,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:10:29,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:10:29,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,898 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-01-27 15:10:29,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:10:29,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:10:29,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:10:29,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:10:29,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,918 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-27 15:10:29,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:10:29,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:10:29,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:10:29,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:10:29,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (1/1) ... [2024-01-27 15:10:29,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:10:29,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:10:29,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 15:10:30,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 15:10:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:10:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:10:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:10:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 15:10:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 15:10:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:10:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:10:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:10:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-27 15:10:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-27 15:10:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-27 15:10:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-27 15:10:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-27 15:10:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 15:10:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:10:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:10:30,031 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 15:10:30,128 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:10:30,130 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:10:30,284 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:10:30,285 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:10:30,353 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:10:30,353 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:10:30,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:30 BoogieIcfgContainer [2024-01-27 15:10:30,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:10:30,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:10:30,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:10:30,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:10:30,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:10:29" (1/3) ... [2024-01-27 15:10:30,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e6239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:10:30, skipping insertion in model container [2024-01-27 15:10:30,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:10:29" (2/3) ... [2024-01-27 15:10:30,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652e6239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:10:30, skipping insertion in model container [2024-01-27 15:10:30,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:30" (3/3) ... [2024-01-27 15:10:30,362 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-01-27 15:10:30,368 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:10:30,375 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:10:30,375 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-27 15:10:30,376 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:10:30,401 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 15:10:30,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-01-27 15:10:30,443 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-01-27 15:10:30,443 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:10:30,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-01-27 15:10:30,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-01-27 15:10:30,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-01-27 15:10:30,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:10:30,458 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;@a4018bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:10:30,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-27 15:10:30,467 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:10:30,467 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-01-27 15:10:30,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:10:30,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:30,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:30,468 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 1 more)] === [2024-01-27 15:10:30,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash 899251850, now seen corresponding path program 1 times [2024-01-27 15:10:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064768811] [2024-01-27 15:10:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:30,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:30,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064768811] [2024-01-27 15:10:30,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064768811] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:30,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:30,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:10:30,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721094287] [2024-01-27 15:10:30,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:30,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:10:30,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:31,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:10:31,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:10:31,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:31,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:31,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:31,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:31,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:31,329 INFO L124 PetriNetUnfolderBase]: 1129/2214 cut-off events. [2024-01-27 15:10:31,330 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-01-27 15:10:31,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4029 conditions, 2214 events. 1129/2214 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 16139 event pairs, 322 based on Foata normal form. 73/2229 useless extension candidates. Maximal degree in co-relation 4018. Up to 814 conditions per place. [2024-01-27 15:10:31,341 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 29 selfloop transitions, 6 changer transitions 35/83 dead transitions. [2024-01-27 15:10:31,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 321 flow [2024-01-27 15:10:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 15:10:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 15:10:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-01-27 15:10:31,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6917293233082706 [2024-01-27 15:10:31,353 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 184 transitions. [2024-01-27 15:10:31,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 321 flow [2024-01-27 15:10:31,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 15:10:31,358 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 144 flow [2024-01-27 15:10:31,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-01-27 15:10:31,362 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-01-27 15:10:31,362 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 144 flow [2024-01-27 15:10:31,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:31,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:31,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:31,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:10:31,363 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 1 more)] === [2024-01-27 15:10:31,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:31,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1886466635, now seen corresponding path program 1 times [2024-01-27 15:10:31,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:31,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183222737] [2024-01-27 15:10:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:31,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:31,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:31,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183222737] [2024-01-27 15:10:31,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183222737] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:31,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:31,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:10:31,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602392807] [2024-01-27 15:10:31,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:31,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:31,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:31,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:31,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:31,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:31,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:31,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:31,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:31,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:31,751 INFO L124 PetriNetUnfolderBase]: 948/1926 cut-off events. [2024-01-27 15:10:31,752 INFO L125 PetriNetUnfolderBase]: For 2206/2214 co-relation queries the response was YES. [2024-01-27 15:10:31,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5299 conditions, 1926 events. 948/1926 cut-off events. For 2206/2214 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 13432 event pairs, 186 based on Foata normal form. 65/1956 useless extension candidates. Maximal degree in co-relation 5283. Up to 572 conditions per place. [2024-01-27 15:10:31,761 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 36 selfloop transitions, 7 changer transitions 52/108 dead transitions. [2024-01-27 15:10:31,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 702 flow [2024-01-27 15:10:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2024-01-27 15:10:31,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6447368421052632 [2024-01-27 15:10:31,764 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 144 flow. Second operand 10 states and 245 transitions. [2024-01-27 15:10:31,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 702 flow [2024-01-27 15:10:31,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 108 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:10:31,770 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 210 flow [2024-01-27 15:10:31,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-01-27 15:10:31,771 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-01-27 15:10:31,771 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 210 flow [2024-01-27 15:10:31,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:31,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:31,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:31,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:10:31,772 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 1 more)] === [2024-01-27 15:10:31,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:31,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2053868597, now seen corresponding path program 1 times [2024-01-27 15:10:31,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:31,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219887148] [2024-01-27 15:10:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:31,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:31,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219887148] [2024-01-27 15:10:31,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219887148] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:31,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:31,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:10:31,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113957735] [2024-01-27 15:10:31,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:31,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:31,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:31,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:31,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:31,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:31,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:31,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:31,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:31,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:32,184 INFO L124 PetriNetUnfolderBase]: 779/1560 cut-off events. [2024-01-27 15:10:32,184 INFO L125 PetriNetUnfolderBase]: For 4177/4189 co-relation queries the response was YES. [2024-01-27 15:10:32,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4988 conditions, 1560 events. 779/1560 cut-off events. For 4177/4189 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10492 event pairs, 153 based on Foata normal form. 46/1564 useless extension candidates. Maximal degree in co-relation 4963. Up to 560 conditions per place. [2024-01-27 15:10:32,193 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 38 selfloop transitions, 11 changer transitions 40/102 dead transitions. [2024-01-27 15:10:32,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 102 transitions, 728 flow [2024-01-27 15:10:32,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:32,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:32,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-01-27 15:10:32,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6368421052631579 [2024-01-27 15:10:32,197 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 210 flow. Second operand 10 states and 242 transitions. [2024-01-27 15:10:32,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 102 transitions, 728 flow [2024-01-27 15:10:32,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 102 transitions, 675 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-01-27 15:10:32,206 INFO L231 Difference]: Finished difference. Result has 72 places, 45 transitions, 294 flow [2024-01-27 15:10:32,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=72, PETRI_TRANSITIONS=45} [2024-01-27 15:10:32,207 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-01-27 15:10:32,208 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 45 transitions, 294 flow [2024-01-27 15:10:32,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:32,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:32,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:32,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 15:10:32,209 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 1 more)] === [2024-01-27 15:10:32,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:32,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1822313342, now seen corresponding path program 1 times [2024-01-27 15:10:32,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:32,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15736400] [2024-01-27 15:10:32,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:32,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:32,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:32,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:32,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15736400] [2024-01-27 15:10:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15736400] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:32,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415657666] [2024-01-27 15:10:32,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:32,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:32,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 45 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:32,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:32,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:32,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:32,581 INFO L124 PetriNetUnfolderBase]: 669/1410 cut-off events. [2024-01-27 15:10:32,581 INFO L125 PetriNetUnfolderBase]: For 3982/3982 co-relation queries the response was YES. [2024-01-27 15:10:32,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 1410 events. 669/1410 cut-off events. For 3982/3982 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9655 event pairs, 124 based on Foata normal form. 36/1407 useless extension candidates. Maximal degree in co-relation 4659. Up to 471 conditions per place. [2024-01-27 15:10:32,592 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 40 selfloop transitions, 14 changer transitions 32/99 dead transitions. [2024-01-27 15:10:32,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 778 flow [2024-01-27 15:10:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2024-01-27 15:10:32,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-01-27 15:10:32,594 INFO L175 Difference]: Start difference. First operand has 72 places, 45 transitions, 294 flow. Second operand 10 states and 235 transitions. [2024-01-27 15:10:32,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 778 flow [2024-01-27 15:10:32,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 99 transitions, 696 flow, removed 39 selfloop flow, removed 9 redundant places. [2024-01-27 15:10:32,606 INFO L231 Difference]: Finished difference. Result has 75 places, 48 transitions, 369 flow [2024-01-27 15:10:32,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=75, PETRI_TRANSITIONS=48} [2024-01-27 15:10:32,608 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 33 predicate places. [2024-01-27 15:10:32,608 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 48 transitions, 369 flow [2024-01-27 15:10:32,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:32,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:32,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:32,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 15:10:32,609 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 1 more)] === [2024-01-27 15:10:32,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:32,609 INFO L85 PathProgramCache]: Analyzing trace with hash 504964840, now seen corresponding path program 1 times [2024-01-27 15:10:32,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:32,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072874416] [2024-01-27 15:10:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:32,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:32,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072874416] [2024-01-27 15:10:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072874416] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:32,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:32,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:10:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519258644] [2024-01-27 15:10:32,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:32,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:32,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:32,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:32,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:32,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 48 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:32,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:32,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:32,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:32,923 INFO L124 PetriNetUnfolderBase]: 585/1205 cut-off events. [2024-01-27 15:10:32,923 INFO L125 PetriNetUnfolderBase]: For 4100/4100 co-relation queries the response was YES. [2024-01-27 15:10:32,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4331 conditions, 1205 events. 585/1205 cut-off events. For 4100/4100 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7546 event pairs, 144 based on Foata normal form. 16/1187 useless extension candidates. Maximal degree in co-relation 4296. Up to 429 conditions per place. [2024-01-27 15:10:32,931 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 44 selfloop transitions, 18 changer transitions 22/97 dead transitions. [2024-01-27 15:10:32,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 97 transitions, 820 flow [2024-01-27 15:10:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:32,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 230 transitions. [2024-01-27 15:10:32,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2024-01-27 15:10:32,933 INFO L175 Difference]: Start difference. First operand has 75 places, 48 transitions, 369 flow. Second operand 10 states and 230 transitions. [2024-01-27 15:10:32,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 97 transitions, 820 flow [2024-01-27 15:10:32,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 97 transitions, 755 flow, removed 27 selfloop flow, removed 9 redundant places. [2024-01-27 15:10:32,943 INFO L231 Difference]: Finished difference. Result has 78 places, 53 transitions, 505 flow [2024-01-27 15:10:32,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=505, PETRI_PLACES=78, PETRI_TRANSITIONS=53} [2024-01-27 15:10:32,944 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 36 predicate places. [2024-01-27 15:10:32,944 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 53 transitions, 505 flow [2024-01-27 15:10:32,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:32,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:32,944 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] [2024-01-27 15:10:32,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 15:10:32,945 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 1 more)] === [2024-01-27 15:10:32,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash -308702929, now seen corresponding path program 1 times [2024-01-27 15:10:32,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:32,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987074638] [2024-01-27 15:10:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:32,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:33,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:33,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987074638] [2024-01-27 15:10:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987074638] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:33,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:33,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811373351] [2024-01-27 15:10:33,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:33,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:10:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:10:33,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:10:33,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-01-27 15:10:33,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 53 transitions, 505 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:33,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-01-27 15:10:33,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:33,260 INFO L124 PetriNetUnfolderBase]: 956/1923 cut-off events. [2024-01-27 15:10:33,261 INFO L125 PetriNetUnfolderBase]: For 9869/9874 co-relation queries the response was YES. [2024-01-27 15:10:33,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7059 conditions, 1923 events. 956/1923 cut-off events. For 9869/9874 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13488 event pairs, 208 based on Foata normal form. 30/1930 useless extension candidates. Maximal degree in co-relation 7021. Up to 479 conditions per place. [2024-01-27 15:10:33,268 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 41 selfloop transitions, 9 changer transitions 47/109 dead transitions. [2024-01-27 15:10:33,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 109 transitions, 1196 flow [2024-01-27 15:10:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 203 transitions. [2024-01-27 15:10:33,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5935672514619883 [2024-01-27 15:10:33,269 INFO L175 Difference]: Start difference. First operand has 78 places, 53 transitions, 505 flow. Second operand 9 states and 203 transitions. [2024-01-27 15:10:33,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 109 transitions, 1196 flow [2024-01-27 15:10:33,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 1129 flow, removed 30 selfloop flow, removed 9 redundant places. [2024-01-27 15:10:33,280 INFO L231 Difference]: Finished difference. Result has 77 places, 43 transitions, 351 flow [2024-01-27 15:10:33,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=351, PETRI_PLACES=77, PETRI_TRANSITIONS=43} [2024-01-27 15:10:33,281 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 35 predicate places. [2024-01-27 15:10:33,281 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 43 transitions, 351 flow [2024-01-27 15:10:33,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:33,281 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] [2024-01-27 15:10:33,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 15:10:33,282 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 1 more)] === [2024-01-27 15:10:33,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1486520871, now seen corresponding path program 1 times [2024-01-27 15:10:33,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:33,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42468227] [2024-01-27 15:10:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:33,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:33,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42468227] [2024-01-27 15:10:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42468227] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 15:10:33,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494207536] [2024-01-27 15:10:33,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:33,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 15:10:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:33,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 15:10:33,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 15:10:33,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-01-27 15:10:33,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 43 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:33,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-01-27 15:10:33,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:33,432 INFO L124 PetriNetUnfolderBase]: 592/1208 cut-off events. [2024-01-27 15:10:33,432 INFO L125 PetriNetUnfolderBase]: For 1484/1504 co-relation queries the response was YES. [2024-01-27 15:10:33,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2881 conditions, 1208 events. 592/1208 cut-off events. For 1484/1504 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7836 event pairs, 130 based on Foata normal form. 63/1224 useless extension candidates. Maximal degree in co-relation 2844. Up to 528 conditions per place. [2024-01-27 15:10:33,437 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 24 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-01-27 15:10:33,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 56 transitions, 437 flow [2024-01-27 15:10:33,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 15:10:33,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 15:10:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-01-27 15:10:33,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-01-27 15:10:33,438 INFO L175 Difference]: Start difference. First operand has 77 places, 43 transitions, 351 flow. Second operand 4 states and 111 transitions. [2024-01-27 15:10:33,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 56 transitions, 437 flow [2024-01-27 15:10:33,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 56 transitions, 375 flow, removed 13 selfloop flow, removed 13 redundant places. [2024-01-27 15:10:33,443 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 327 flow [2024-01-27 15:10:33,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-01-27 15:10:33,444 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-01-27 15:10:33,444 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 327 flow [2024-01-27 15:10:33,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:33,445 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] [2024-01-27 15:10:33,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 15:10:33,445 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 1 more)] === [2024-01-27 15:10:33,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash 339963296, now seen corresponding path program 1 times [2024-01-27 15:10:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:33,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354629315] [2024-01-27 15:10:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:33,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:33,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:33,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354629315] [2024-01-27 15:10:33,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354629315] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:33,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:10:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131170437] [2024-01-27 15:10:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:33,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:10:33,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:10:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:10:33,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-01-27 15:10:33,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 327 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:33,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-01-27 15:10:33,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:33,594 INFO L124 PetriNetUnfolderBase]: 504/1015 cut-off events. [2024-01-27 15:10:33,594 INFO L125 PetriNetUnfolderBase]: For 808/1015 co-relation queries the response was YES. [2024-01-27 15:10:33,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 1015 events. 504/1015 cut-off events. For 808/1015 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6004 event pairs, 47 based on Foata normal form. 62/1033 useless extension candidates. Maximal degree in co-relation 2601. Up to 424 conditions per place. [2024-01-27 15:10:33,598 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 29 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2024-01-27 15:10:33,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 64 transitions, 452 flow [2024-01-27 15:10:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:10:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:10:33,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-01-27 15:10:33,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7315789473684211 [2024-01-27 15:10:33,599 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 327 flow. Second operand 5 states and 139 transitions. [2024-01-27 15:10:33,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 64 transitions, 452 flow [2024-01-27 15:10:33,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 64 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 15:10:33,602 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 379 flow [2024-01-27 15:10:33,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=379, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-01-27 15:10:33,603 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2024-01-27 15:10:33,603 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 379 flow [2024-01-27 15:10:33,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:33,603 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] [2024-01-27 15:10:33,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 15:10:33,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:10:33,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1284926941, now seen corresponding path program 1 times [2024-01-27 15:10:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:33,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807816872] [2024-01-27 15:10:33,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:33,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:33,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807816872] [2024-01-27 15:10:33,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807816872] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:33,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:33,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:10:33,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089143900] [2024-01-27 15:10:33,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:33,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:33,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:33,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:33,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:33,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-01-27 15:10:33,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:33,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-01-27 15:10:33,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:33,766 INFO L124 PetriNetUnfolderBase]: 412/787 cut-off events. [2024-01-27 15:10:33,766 INFO L125 PetriNetUnfolderBase]: For 1336/1743 co-relation queries the response was YES. [2024-01-27 15:10:33,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2492 conditions, 787 events. 412/787 cut-off events. For 1336/1743 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4166 event pairs, 19 based on Foata normal form. 56/803 useless extension candidates. Maximal degree in co-relation 2460. Up to 264 conditions per place. [2024-01-27 15:10:33,769 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 25 selfloop transitions, 11 changer transitions 6/66 dead transitions. [2024-01-27 15:10:33,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 66 transitions, 494 flow [2024-01-27 15:10:33,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 15:10:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 15:10:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-01-27 15:10:33,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.706140350877193 [2024-01-27 15:10:33,770 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 379 flow. Second operand 6 states and 161 transitions. [2024-01-27 15:10:33,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 66 transitions, 494 flow [2024-01-27 15:10:33,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 461 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-01-27 15:10:33,772 INFO L231 Difference]: Finished difference. Result has 72 places, 48 transitions, 345 flow [2024-01-27 15:10:33,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=72, PETRI_TRANSITIONS=48} [2024-01-27 15:10:33,773 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-01-27 15:10:33,773 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 48 transitions, 345 flow [2024-01-27 15:10:33,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:33,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:33,774 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] [2024-01-27 15:10:33,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 15:10:33,774 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:10:33,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:33,774 INFO L85 PathProgramCache]: Analyzing trace with hash -834115626, now seen corresponding path program 1 times [2024-01-27 15:10:33,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:33,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499003648] [2024-01-27 15:10:33,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:33,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:33,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:33,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499003648] [2024-01-27 15:10:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499003648] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:33,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:33,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:33,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299800869] [2024-01-27 15:10:33,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:33,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:10:33,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:10:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:10:33,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-01-27 15:10:33,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 48 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 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) [2024-01-27 15:10:33,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:33,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-01-27 15:10:33,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:33,999 INFO L124 PetriNetUnfolderBase]: 454/966 cut-off events. [2024-01-27 15:10:33,999 INFO L125 PetriNetUnfolderBase]: For 2415/2472 co-relation queries the response was YES. [2024-01-27 15:10:34,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3189 conditions, 966 events. 454/966 cut-off events. For 2415/2472 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6031 event pairs, 162 based on Foata normal form. 19/876 useless extension candidates. Maximal degree in co-relation 3158. Up to 290 conditions per place. [2024-01-27 15:10:34,003 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 21 selfloop transitions, 5 changer transitions 28/74 dead transitions. [2024-01-27 15:10:34,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 563 flow [2024-01-27 15:10:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 15:10:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 15:10:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-01-27 15:10:34,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6015037593984962 [2024-01-27 15:10:34,005 INFO L175 Difference]: Start difference. First operand has 72 places, 48 transitions, 345 flow. Second operand 7 states and 160 transitions. [2024-01-27 15:10:34,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 563 flow [2024-01-27 15:10:34,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 470 flow, removed 16 selfloop flow, removed 10 redundant places. [2024-01-27 15:10:34,010 INFO L231 Difference]: Finished difference. Result has 71 places, 39 transitions, 202 flow [2024-01-27 15:10:34,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=71, PETRI_TRANSITIONS=39} [2024-01-27 15:10:34,011 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2024-01-27 15:10:34,011 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 39 transitions, 202 flow [2024-01-27 15:10:34,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 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) [2024-01-27 15:10:34,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:34,011 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] [2024-01-27 15:10:34,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 15:10:34,012 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:10:34,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1924506992, now seen corresponding path program 2 times [2024-01-27 15:10:34,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:34,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299084452] [2024-01-27 15:10:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:34,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:34,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299084452] [2024-01-27 15:10:34,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299084452] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:34,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:34,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:34,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906618947] [2024-01-27 15:10:34,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:34,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:34,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:34,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:34,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:34,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 38 [2024-01-27 15:10:34,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 39 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:34,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:34,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 38 [2024-01-27 15:10:34,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:34,167 INFO L124 PetriNetUnfolderBase]: 110/243 cut-off events. [2024-01-27 15:10:34,167 INFO L125 PetriNetUnfolderBase]: For 500/508 co-relation queries the response was YES. [2024-01-27 15:10:34,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 243 events. 110/243 cut-off events. For 500/508 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 893 event pairs, 20 based on Foata normal form. 9/222 useless extension candidates. Maximal degree in co-relation 678. Up to 103 conditions per place. [2024-01-27 15:10:34,168 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-01-27 15:10:34,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 50 transitions, 282 flow [2024-01-27 15:10:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 15:10:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 15:10:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 156 transitions. [2024-01-27 15:10:34,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5864661654135338 [2024-01-27 15:10:34,169 INFO L175 Difference]: Start difference. First operand has 71 places, 39 transitions, 202 flow. Second operand 7 states and 156 transitions. [2024-01-27 15:10:34,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 50 transitions, 282 flow [2024-01-27 15:10:34,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 50 transitions, 211 flow, removed 6 selfloop flow, removed 20 redundant places. [2024-01-27 15:10:34,170 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-01-27 15:10:34,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-01-27 15:10:34,171 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-01-27 15:10:34,171 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-01-27 15:10:34,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:34,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-01-27 15:10:34,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-01-27 15:10:34,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-01-27 15:10:34,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-01-27 15:10:34,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-27 15:10:34,174 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:34,176 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:10:34,176 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:10:34,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:10:34 BasicIcfg [2024-01-27 15:10:34,180 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:10:34,180 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:10:34,180 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:10:34,181 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:10:34,181 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:10:30" (3/4) ... [2024-01-27 15:10:34,182 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:10:34,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-01-27 15:10:34,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-01-27 15:10:34,185 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-01-27 15:10:34,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-01-27 15:10:34,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-01-27 15:10:34,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-01-27 15:10:34,188 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-01-27 15:10:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:10:34,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:10:34,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:10:34,244 INFO L158 Benchmark]: Toolchain (without parser) took 4839.82ms. Allocated memory was 134.2MB in the beginning and 272.6MB in the end (delta: 138.4MB). Free memory was 60.4MB in the beginning and 147.6MB in the end (delta: -87.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,244 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:10:34,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.53ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 60.2MB in the beginning and 147.9MB in the end (delta: -87.7MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.82ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,245 INFO L158 Benchmark]: Boogie Preprocessor took 39.42ms. Allocated memory is still 184.5MB. Free memory was 145.8MB in the beginning and 143.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,245 INFO L158 Benchmark]: RCFGBuilder took 414.80ms. Allocated memory is still 184.5MB. Free memory was 143.7MB in the beginning and 121.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,245 INFO L158 Benchmark]: TraceAbstraction took 3825.09ms. Allocated memory was 184.5MB in the beginning and 272.6MB in the end (delta: 88.1MB). Free memory was 120.6MB in the beginning and 152.9MB in the end (delta: -32.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,245 INFO L158 Benchmark]: Witness Printer took 63.09ms. Allocated memory is still 272.6MB. Free memory was 152.9MB in the beginning and 147.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-27 15:10:34,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.53ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 60.2MB in the beginning and 147.9MB in the end (delta: -87.7MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.82ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.42ms. Allocated memory is still 184.5MB. Free memory was 145.8MB in the beginning and 143.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.80ms. Allocated memory is still 184.5MB. Free memory was 143.7MB in the beginning and 121.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3825.09ms. Allocated memory was 184.5MB in the beginning and 272.6MB in the end (delta: 88.1MB). Free memory was 120.6MB in the beginning and 152.9MB in the end (delta: -32.2MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 63.09ms. Allocated memory is still 272.6MB. Free memory was 152.9MB in the beginning and 147.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 512 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 478 mSDsluCounter, 300 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1020 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 87 mSDtfsCounter, 1020 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=5, InterpolantAutomatonStates: 85, 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, 1.2s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 1071 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2024-01-27 15:10:34,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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