./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:09:56,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:09:56,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:09:56,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:09:56,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:09:56,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:09:56,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:09:56,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:09:56,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:09:56,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:09:56,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:09:56,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:09:56,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:09:56,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:09:56,229 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:09:56,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:09:56,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:09:56,230 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:09:56,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:09:56,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:09:56,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:09:56,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:09:56,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:09:56,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:09:56,233 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:09:56,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:09:56,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:09:56,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:09:56,234 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:09:56,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:09:56,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:09:56,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:09:56,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:09:56,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:09:56,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:09:56,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:09:56,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:09:56,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:09:56,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:09:56,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:09:56,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:09:56,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:09:56,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:09:56,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2024-01-27 15:09:56,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:09:56,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:09:56,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:09:56,513 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:09:56,514 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:09:56,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-01-27 15:09:57,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:09:57,997 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:09:57,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-01-27 15:09:58,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baa683044/679b21116baf430d94c28582faa26253/FLAGbf83d6f12 [2024-01-27 15:09:58,035 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baa683044/679b21116baf430d94c28582faa26253 [2024-01-27 15:09:58,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:09:58,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:09:58,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:09:58,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:09:58,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:09:58,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca8d929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58, skipping insertion in model container [2024-01-27 15:09:58,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:09:58,267 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-01-27 15:09:58,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:09:58,497 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:09:58,509 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/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-01-27 15:09:58,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:09:58,588 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:09:58,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58 WrapperNode [2024-01-27 15:09:58,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:09:58,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:09:58,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:09:58,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:09:58,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,674 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2024-01-27 15:09:58,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:09:58,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:09:58,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:09:58,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:09:58,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,725 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-27 15:09:58,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:09:58,771 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:09:58,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:09:58,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:09:58,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (1/1) ... [2024-01-27 15:09:58,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:09:58,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:09:58,805 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 15:09:58,833 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 15:09:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:09:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:09:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:09:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 15:09:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:09:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:09:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:09:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-27 15:09:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-27 15:09:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-27 15:09:58,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-27 15:09:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:09:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:09:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:09:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 15:09:58,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:09:58,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:09:58,865 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 15:09:59,012 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:09:59,014 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:09:59,291 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:09:59,292 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:09:59,530 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:09:59,530 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:09:59,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:09:59 BoogieIcfgContainer [2024-01-27 15:09:59,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:09:59,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:09:59,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:09:59,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:09:59,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:09:58" (1/3) ... [2024-01-27 15:09:59,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0dfb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:09:59, skipping insertion in model container [2024-01-27 15:09:59,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:09:58" (2/3) ... [2024-01-27 15:09:59,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0dfb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:09:59, skipping insertion in model container [2024-01-27 15:09:59,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:09:59" (3/3) ... [2024-01-27 15:09:59,542 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-01-27 15:09:59,549 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:09:59,558 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:09:59,558 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-27 15:09:59,558 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:09:59,596 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 15:09:59,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2024-01-27 15:09:59,647 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-01-27 15:09:59,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:09:59,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-01-27 15:09:59,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2024-01-27 15:09:59,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2024-01-27 15:09:59,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:09:59,669 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;@50d6b49b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:09:59,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-01-27 15:09:59,675 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:09:59,675 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-01-27 15:09:59,675 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 15:09:59,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:09:59,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 15:09:59,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:09:59,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:09:59,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1032196371, now seen corresponding path program 1 times [2024-01-27 15:09:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:09:59,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576030010] [2024-01-27 15:09:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:09:59,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:09:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:00,253 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 15:10:00,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:00,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576030010] [2024-01-27 15:10:00,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576030010] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:00,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:00,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 15:10:00,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361235078] [2024-01-27 15:10:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:00,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 15:10:00,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:00,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 15:10:00,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 15:10:00,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-01-27 15:10:00,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:00,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:00,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-01-27 15:10:00,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:00,479 INFO L124 PetriNetUnfolderBase]: 264/581 cut-off events. [2024-01-27 15:10:00,479 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 15:10:00,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 581 events. 264/581 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3136 event pairs, 32 based on Foata normal form. 25/599 useless extension candidates. Maximal degree in co-relation 1037. Up to 373 conditions per place. [2024-01-27 15:10:00,489 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 24 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-01-27 15:10:00,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 140 flow [2024-01-27 15:10:00,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 15:10:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 15:10:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-01-27 15:10:00,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7070707070707071 [2024-01-27 15:10:00,504 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 70 transitions. [2024-01-27 15:10:00,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 140 flow [2024-01-27 15:10:00,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:10:00,510 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-01-27 15:10:00,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-01-27 15:10:00,515 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-01-27 15:10:00,515 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-01-27 15:10:00,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:10:00,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:00,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:00,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:10:00,517 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:00,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:00,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1996445702, now seen corresponding path program 1 times [2024-01-27 15:10:00,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:00,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809861059] [2024-01-27 15:10:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:00,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:00,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809861059] [2024-01-27 15:10:00,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809861059] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:00,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:00,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:10:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528531597] [2024-01-27 15:10:00,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:00,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:10:00,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:00,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:10:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:10:00,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:00,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 15:10:00,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:00,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:00,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:01,215 INFO L124 PetriNetUnfolderBase]: 426/800 cut-off events. [2024-01-27 15:10:01,215 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-01-27 15:10:01,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 800 events. 426/800 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4202 event pairs, 96 based on Foata normal form. 0/774 useless extension candidates. Maximal degree in co-relation 1568. Up to 358 conditions per place. [2024-01-27 15:10:01,221 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 24 selfloop transitions, 2 changer transitions 39/73 dead transitions. [2024-01-27 15:10:01,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 73 transitions, 288 flow [2024-01-27 15:10:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:10:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:10:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-01-27 15:10:01,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2024-01-27 15:10:01,229 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 8 states and 147 transitions. [2024-01-27 15:10:01,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 73 transitions, 288 flow [2024-01-27 15:10:01,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 73 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:10:01,232 INFO L231 Difference]: Finished difference. Result has 45 places, 27 transitions, 74 flow [2024-01-27 15:10:01,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2024-01-27 15:10:01,233 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-01-27 15:10:01,234 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 27 transitions, 74 flow [2024-01-27 15:10:01,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 15:10:01,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:01,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:10:01,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:10:01,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:01,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:01,237 INFO L85 PathProgramCache]: Analyzing trace with hash -521948387, now seen corresponding path program 1 times [2024-01-27 15:10:01,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:01,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820673304] [2024-01-27 15:10:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:01,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:01,439 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 15:10:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:01,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820673304] [2024-01-27 15:10:01,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820673304] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:01,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:10:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043350223] [2024-01-27 15:10:01,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:01,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:10:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:01,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:10:01,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:10:01,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-01-27 15:10:01,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 27 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 15:10:01,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:01,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-01-27 15:10:01,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:01,657 INFO L124 PetriNetUnfolderBase]: 245/496 cut-off events. [2024-01-27 15:10:01,657 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-01-27 15:10:01,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 496 events. 245/496 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2473 event pairs, 69 based on Foata normal form. 20/511 useless extension candidates. Maximal degree in co-relation 1046. Up to 253 conditions per place. [2024-01-27 15:10:01,660 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 25 selfloop transitions, 2 changer transitions 23/59 dead transitions. [2024-01-27 15:10:01,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 250 flow [2024-01-27 15:10:01,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 15:10:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 15:10:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-01-27 15:10:01,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5584415584415584 [2024-01-27 15:10:01,662 INFO L175 Difference]: Start difference. First operand has 45 places, 27 transitions, 74 flow. Second operand 7 states and 129 transitions. [2024-01-27 15:10:01,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 250 flow [2024-01-27 15:10:01,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 59 transitions, 230 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-01-27 15:10:01,665 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 78 flow [2024-01-27 15:10:01,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=78, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2024-01-27 15:10:01,666 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-01-27 15:10:01,667 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 78 flow [2024-01-27 15:10:01,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 15:10:01,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:01,667 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] [2024-01-27 15:10:01,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 15:10:01,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:01,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1822590633, now seen corresponding path program 1 times [2024-01-27 15:10:01,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:01,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150222163] [2024-01-27 15:10:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:02,247 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 15:10:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150222163] [2024-01-27 15:10:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150222163] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:02,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:02,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641571846] [2024-01-27 15:10:02,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:02,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:10:02,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:10:02,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:10:02,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:02,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 15:10:02,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:02,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:02,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:02,659 INFO L124 PetriNetUnfolderBase]: 309/642 cut-off events. [2024-01-27 15:10:02,659 INFO L125 PetriNetUnfolderBase]: For 141/142 co-relation queries the response was YES. [2024-01-27 15:10:02,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 642 events. 309/642 cut-off events. For 141/142 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3182 event pairs, 37 based on Foata normal form. 15/652 useless extension candidates. Maximal degree in co-relation 1376. Up to 329 conditions per place. [2024-01-27 15:10:02,664 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 33 selfloop transitions, 10 changer transitions 21/72 dead transitions. [2024-01-27 15:10:02,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 72 transitions, 316 flow [2024-01-27 15:10:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 166 transitions. [2024-01-27 15:10:02,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503030303030303 [2024-01-27 15:10:02,670 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 78 flow. Second operand 10 states and 166 transitions. [2024-01-27 15:10:02,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 72 transitions, 316 flow [2024-01-27 15:10:02,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 292 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-01-27 15:10:02,675 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 152 flow [2024-01-27 15:10:02,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2024-01-27 15:10:02,677 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2024-01-27 15:10:02,677 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 152 flow [2024-01-27 15:10:02,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 15:10:02,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:02,678 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] [2024-01-27 15:10:02,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 15:10:02,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:02,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:02,679 INFO L85 PathProgramCache]: Analyzing trace with hash -979740345, now seen corresponding path program 2 times [2024-01-27 15:10:02,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:02,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410607246] [2024-01-27 15:10:02,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:02,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:03,281 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 15:10:03,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:03,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410607246] [2024-01-27 15:10:03,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410607246] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:03,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:03,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992487330] [2024-01-27 15:10:03,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:03,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:10:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:10:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:10:03,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:03,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 152 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 15:10:03,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:03,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:03,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:03,561 INFO L124 PetriNetUnfolderBase]: 301/625 cut-off events. [2024-01-27 15:10:03,562 INFO L125 PetriNetUnfolderBase]: For 651/667 co-relation queries the response was YES. [2024-01-27 15:10:03,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 625 events. 301/625 cut-off events. For 651/667 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3127 event pairs, 53 based on Foata normal form. 12/629 useless extension candidates. Maximal degree in co-relation 1898. Up to 408 conditions per place. [2024-01-27 15:10:03,567 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 36 selfloop transitions, 14 changer transitions 12/70 dead transitions. [2024-01-27 15:10:03,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 436 flow [2024-01-27 15:10:03,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 15:10:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 15:10:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 124 transitions. [2024-01-27 15:10:03,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5367965367965368 [2024-01-27 15:10:03,568 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 152 flow. Second operand 7 states and 124 transitions. [2024-01-27 15:10:03,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 436 flow [2024-01-27 15:10:03,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 70 transitions, 429 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-01-27 15:10:03,572 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 263 flow [2024-01-27 15:10:03,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=263, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-01-27 15:10:03,573 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 15 predicate places. [2024-01-27 15:10:03,573 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 263 flow [2024-01-27 15:10:03,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 15:10:03,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:03,574 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] [2024-01-27 15:10:03,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 15:10:03,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:03,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2018103687, now seen corresponding path program 3 times [2024-01-27 15:10:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:03,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942433252] [2024-01-27 15:10:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:03,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:04,241 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 15:10:04,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:04,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942433252] [2024-01-27 15:10:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942433252] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:04,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:04,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811995167] [2024-01-27 15:10:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:04,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:04,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:04,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 263 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 15:10:04,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:04,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:04,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:04,601 INFO L124 PetriNetUnfolderBase]: 317/656 cut-off events. [2024-01-27 15:10:04,602 INFO L125 PetriNetUnfolderBase]: For 1359/1449 co-relation queries the response was YES. [2024-01-27 15:10:04,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 656 events. 317/656 cut-off events. For 1359/1449 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3420 event pairs, 32 based on Foata normal form. 30/680 useless extension candidates. Maximal degree in co-relation 2317. Up to 400 conditions per place. [2024-01-27 15:10:04,608 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 46 selfloop transitions, 19 changer transitions 12/85 dead transitions. [2024-01-27 15:10:04,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 636 flow [2024-01-27 15:10:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:10:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:10:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 141 transitions. [2024-01-27 15:10:04,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2024-01-27 15:10:04,609 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 263 flow. Second operand 8 states and 141 transitions. [2024-01-27 15:10:04,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 636 flow [2024-01-27 15:10:04,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 85 transitions, 605 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-01-27 15:10:04,615 INFO L231 Difference]: Finished difference. Result has 58 places, 53 transitions, 374 flow [2024-01-27 15:10:04,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=374, PETRI_PLACES=58, PETRI_TRANSITIONS=53} [2024-01-27 15:10:04,616 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 21 predicate places. [2024-01-27 15:10:04,616 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 53 transitions, 374 flow [2024-01-27 15:10:04,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 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 15:10:04,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:04,617 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] [2024-01-27 15:10:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 15:10:04,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:04,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1084924503, now seen corresponding path program 4 times [2024-01-27 15:10:04,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:04,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769558095] [2024-01-27 15:10:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:04,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:05,133 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 15:10:05,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:05,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769558095] [2024-01-27 15:10:05,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769558095] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:05,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:05,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:05,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95610753] [2024-01-27 15:10:05,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:05,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:05,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:05,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:05,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:05,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:05,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 374 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 15:10:05,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:05,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:05,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:05,487 INFO L124 PetriNetUnfolderBase]: 316/661 cut-off events. [2024-01-27 15:10:05,488 INFO L125 PetriNetUnfolderBase]: For 2057/2201 co-relation queries the response was YES. [2024-01-27 15:10:05,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 661 events. 316/661 cut-off events. For 2057/2201 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3471 event pairs, 39 based on Foata normal form. 44/700 useless extension candidates. Maximal degree in co-relation 2510. Up to 405 conditions per place. [2024-01-27 15:10:05,494 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 47 selfloop transitions, 23 changer transitions 19/97 dead transitions. [2024-01-27 15:10:05,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 97 transitions, 834 flow [2024-01-27 15:10:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-01-27 15:10:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-01-27 15:10:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2024-01-27 15:10:05,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509641873278237 [2024-01-27 15:10:05,496 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 374 flow. Second operand 11 states and 185 transitions. [2024-01-27 15:10:05,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 97 transitions, 834 flow [2024-01-27 15:10:05,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 97 transitions, 793 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-01-27 15:10:05,505 INFO L231 Difference]: Finished difference. Result has 66 places, 57 transitions, 467 flow [2024-01-27 15:10:05,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=467, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2024-01-27 15:10:05,506 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2024-01-27 15:10:05,506 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 467 flow [2024-01-27 15:10:05,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 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 15:10:05,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:05,507 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 15:10:05,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 15:10:05,507 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:05,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:05,509 INFO L85 PathProgramCache]: Analyzing trace with hash 765912645, now seen corresponding path program 1 times [2024-01-27 15:10:05,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:05,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193530063] [2024-01-27 15:10:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:05,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:05,853 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 15:10:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193530063] [2024-01-27 15:10:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193530063] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:05,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:05,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:10:05,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199017597] [2024-01-27 15:10:05,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:05,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:10:05,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:05,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:10:05,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:10:05,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-01-27 15:10:05,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 467 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 15:10:05,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:05,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-01-27 15:10:05,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:06,183 INFO L124 PetriNetUnfolderBase]: 372/781 cut-off events. [2024-01-27 15:10:06,184 INFO L125 PetriNetUnfolderBase]: For 3384/3463 co-relation queries the response was YES. [2024-01-27 15:10:06,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 781 events. 372/781 cut-off events. For 3384/3463 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4417 event pairs, 117 based on Foata normal form. 47/817 useless extension candidates. Maximal degree in co-relation 3155. Up to 345 conditions per place. [2024-01-27 15:10:06,190 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 31 selfloop transitions, 11 changer transitions 27/82 dead transitions. [2024-01-27 15:10:06,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 82 transitions, 772 flow [2024-01-27 15:10:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 15:10:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 15:10:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-01-27 15:10:06,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2024-01-27 15:10:06,192 INFO L175 Difference]: Start difference. First operand has 66 places, 57 transitions, 467 flow. Second operand 6 states and 112 transitions. [2024-01-27 15:10:06,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 82 transitions, 772 flow [2024-01-27 15:10:06,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 82 transitions, 687 flow, removed 21 selfloop flow, removed 10 redundant places. [2024-01-27 15:10:06,211 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 374 flow [2024-01-27 15:10:06,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-01-27 15:10:06,213 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2024-01-27 15:10:06,213 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 374 flow [2024-01-27 15:10:06,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 15:10:06,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:06,213 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 15:10:06,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 15:10:06,214 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:06,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1662678277, now seen corresponding path program 1 times [2024-01-27 15:10:06,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:06,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188779004] [2024-01-27 15:10:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:06,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:07,425 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 15:10:07,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:07,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188779004] [2024-01-27 15:10:07,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188779004] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:07,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:07,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-01-27 15:10:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945382380] [2024-01-27 15:10:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:07,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-01-27 15:10:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:07,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-01-27 15:10:07,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-01-27 15:10:07,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:07,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 374 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 15:10:07,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:07,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:07,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:07,848 INFO L124 PetriNetUnfolderBase]: 259/580 cut-off events. [2024-01-27 15:10:07,848 INFO L125 PetriNetUnfolderBase]: For 2032/2105 co-relation queries the response was YES. [2024-01-27 15:10:07,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2280 conditions, 580 events. 259/580 cut-off events. For 2032/2105 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3096 event pairs, 30 based on Foata normal form. 18/594 useless extension candidates. Maximal degree in co-relation 2256. Up to 299 conditions per place. [2024-01-27 15:10:07,853 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 49 selfloop transitions, 21 changer transitions 14/92 dead transitions. [2024-01-27 15:10:07,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 92 transitions, 788 flow [2024-01-27 15:10:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:07,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 163 transitions. [2024-01-27 15:10:07,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49393939393939396 [2024-01-27 15:10:07,855 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 374 flow. Second operand 10 states and 163 transitions. [2024-01-27 15:10:07,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 92 transitions, 788 flow [2024-01-27 15:10:07,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 92 transitions, 750 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-01-27 15:10:07,862 INFO L231 Difference]: Finished difference. Result has 67 places, 59 transitions, 504 flow [2024-01-27 15:10:07,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=504, PETRI_PLACES=67, PETRI_TRANSITIONS=59} [2024-01-27 15:10:07,863 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 30 predicate places. [2024-01-27 15:10:07,863 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 504 flow [2024-01-27 15:10:07,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 15:10:07,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:07,864 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 15:10:07,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 15:10:07,864 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:07,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash -859739389, now seen corresponding path program 2 times [2024-01-27 15:10:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:07,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232031129] [2024-01-27 15:10:07,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:07,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:08,377 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 15:10:08,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232031129] [2024-01-27 15:10:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232031129] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:08,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:08,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:08,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034920616] [2024-01-27 15:10:08,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:08,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:08,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:08,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:08,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:08,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:08,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 504 flow. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 15:10:08,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:08,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:08,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:08,808 INFO L124 PetriNetUnfolderBase]: 439/864 cut-off events. [2024-01-27 15:10:08,808 INFO L125 PetriNetUnfolderBase]: For 4183/4273 co-relation queries the response was YES. [2024-01-27 15:10:08,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3631 conditions, 864 events. 439/864 cut-off events. For 4183/4273 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4341 event pairs, 69 based on Foata normal form. 27/891 useless extension candidates. Maximal degree in co-relation 3603. Up to 550 conditions per place. [2024-01-27 15:10:08,815 INFO L140 encePairwiseOnDemand]: 20/33 looper letters, 57 selfloop transitions, 25 changer transitions 16/104 dead transitions. [2024-01-27 15:10:08,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 104 transitions, 953 flow [2024-01-27 15:10:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 142 transitions. [2024-01-27 15:10:08,818 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781144781144781 [2024-01-27 15:10:08,818 INFO L175 Difference]: Start difference. First operand has 67 places, 59 transitions, 504 flow. Second operand 9 states and 142 transitions. [2024-01-27 15:10:08,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 104 transitions, 953 flow [2024-01-27 15:10:08,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 912 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-01-27 15:10:08,829 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 655 flow [2024-01-27 15:10:08,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=655, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2024-01-27 15:10:08,831 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2024-01-27 15:10:08,831 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 655 flow [2024-01-27 15:10:08,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 15:10:08,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:08,831 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 15:10:08,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 15:10:08,832 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:08,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1409187333, now seen corresponding path program 2 times [2024-01-27 15:10:08,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:08,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989806034] [2024-01-27 15:10:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:09,783 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 15:10:09,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:09,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989806034] [2024-01-27 15:10:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989806034] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:09,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:09,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725838188] [2024-01-27 15:10:09,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:09,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:09,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:09,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:09,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 655 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 15:10:09,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:09,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:09,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:10,259 INFO L124 PetriNetUnfolderBase]: 459/904 cut-off events. [2024-01-27 15:10:10,259 INFO L125 PetriNetUnfolderBase]: For 5596/5700 co-relation queries the response was YES. [2024-01-27 15:10:10,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4137 conditions, 904 events. 459/904 cut-off events. For 5596/5700 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4577 event pairs, 93 based on Foata normal form. 44/947 useless extension candidates. Maximal degree in co-relation 4107. Up to 570 conditions per place. [2024-01-27 15:10:10,268 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 68 selfloop transitions, 27 changer transitions 22/123 dead transitions. [2024-01-27 15:10:10,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 123 transitions, 1230 flow [2024-01-27 15:10:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-27 15:10:10,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-01-27 15:10:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 181 transitions. [2024-01-27 15:10:10,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45707070707070707 [2024-01-27 15:10:10,270 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 655 flow. Second operand 12 states and 181 transitions. [2024-01-27 15:10:10,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 123 transitions, 1230 flow [2024-01-27 15:10:10,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 123 transitions, 1215 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-01-27 15:10:10,285 INFO L231 Difference]: Finished difference. Result has 82 places, 75 transitions, 833 flow [2024-01-27 15:10:10,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=833, PETRI_PLACES=82, PETRI_TRANSITIONS=75} [2024-01-27 15:10:10,286 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 45 predicate places. [2024-01-27 15:10:10,286 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 75 transitions, 833 flow [2024-01-27 15:10:10,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 15:10:10,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:10,287 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 15:10:10,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-27 15:10:10,287 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:10,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash 630994637, now seen corresponding path program 3 times [2024-01-27 15:10:10,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:10,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108603757] [2024-01-27 15:10:10,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:10,690 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 15:10:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:10,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108603757] [2024-01-27 15:10:10,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108603757] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:10,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:10,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616790527] [2024-01-27 15:10:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:10,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:10,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:10,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:10,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:10,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 75 transitions, 833 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 15:10:10,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:10,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:10,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:11,131 INFO L124 PetriNetUnfolderBase]: 351/797 cut-off events. [2024-01-27 15:10:11,132 INFO L125 PetriNetUnfolderBase]: For 6142/6275 co-relation queries the response was YES. [2024-01-27 15:10:11,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3910 conditions, 797 events. 351/797 cut-off events. For 6142/6275 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4684 event pairs, 54 based on Foata normal form. 40/836 useless extension candidates. Maximal degree in co-relation 3875. Up to 361 conditions per place. [2024-01-27 15:10:11,139 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 64 selfloop transitions, 34 changer transitions 19/126 dead transitions. [2024-01-27 15:10:11,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 126 transitions, 1495 flow [2024-01-27 15:10:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 170 transitions. [2024-01-27 15:10:11,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2024-01-27 15:10:11,141 INFO L175 Difference]: Start difference. First operand has 82 places, 75 transitions, 833 flow. Second operand 10 states and 170 transitions. [2024-01-27 15:10:11,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 126 transitions, 1495 flow [2024-01-27 15:10:11,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 126 transitions, 1442 flow, removed 21 selfloop flow, removed 7 redundant places. [2024-01-27 15:10:11,159 INFO L231 Difference]: Finished difference. Result has 85 places, 86 transitions, 1057 flow [2024-01-27 15:10:11,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1057, PETRI_PLACES=85, PETRI_TRANSITIONS=86} [2024-01-27 15:10:11,161 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 48 predicate places. [2024-01-27 15:10:11,161 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 86 transitions, 1057 flow [2024-01-27 15:10:11,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 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 15:10:11,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:11,162 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 15:10:11,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-27 15:10:11,164 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:11,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:11,165 INFO L85 PathProgramCache]: Analyzing trace with hash -460264801, now seen corresponding path program 3 times [2024-01-27 15:10:11,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:11,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590602202] [2024-01-27 15:10:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:11,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:12,072 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 15:10:12,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590602202] [2024-01-27 15:10:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590602202] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:12,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:12,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669898420] [2024-01-27 15:10:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:12,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:12,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:12,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:12,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:12,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 86 transitions, 1057 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 15:10:12,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:12,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:12,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:12,812 INFO L124 PetriNetUnfolderBase]: 433/872 cut-off events. [2024-01-27 15:10:12,812 INFO L125 PetriNetUnfolderBase]: For 6985/7098 co-relation queries the response was YES. [2024-01-27 15:10:12,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4382 conditions, 872 events. 433/872 cut-off events. For 6985/7098 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4458 event pairs, 45 based on Foata normal form. 43/914 useless extension candidates. Maximal degree in co-relation 4345. Up to 361 conditions per place. [2024-01-27 15:10:12,821 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 89 selfloop transitions, 34 changer transitions 35/164 dead transitions. [2024-01-27 15:10:12,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 164 transitions, 1868 flow [2024-01-27 15:10:12,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-01-27 15:10:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-01-27 15:10:12,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 247 transitions. [2024-01-27 15:10:12,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44028520499108736 [2024-01-27 15:10:12,824 INFO L175 Difference]: Start difference. First operand has 85 places, 86 transitions, 1057 flow. Second operand 17 states and 247 transitions. [2024-01-27 15:10:12,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 164 transitions, 1868 flow [2024-01-27 15:10:12,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 164 transitions, 1780 flow, removed 32 selfloop flow, removed 6 redundant places. [2024-01-27 15:10:12,846 INFO L231 Difference]: Finished difference. Result has 104 places, 90 transitions, 1182 flow [2024-01-27 15:10:12,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1182, PETRI_PLACES=104, PETRI_TRANSITIONS=90} [2024-01-27 15:10:12,848 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 67 predicate places. [2024-01-27 15:10:12,848 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 90 transitions, 1182 flow [2024-01-27 15:10:12,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 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 15:10:12,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:12,849 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 15:10:12,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-27 15:10:12,849 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:12,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:12,849 INFO L85 PathProgramCache]: Analyzing trace with hash 685155553, now seen corresponding path program 1 times [2024-01-27 15:10:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:12,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347170711] [2024-01-27 15:10:12,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:12,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:13,479 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 15:10:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347170711] [2024-01-27 15:10:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347170711] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:13,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:13,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693548233] [2024-01-27 15:10:13,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:13,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:13,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 90 transitions, 1182 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:13,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:13,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:13,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:13,871 INFO L124 PetriNetUnfolderBase]: 273/653 cut-off events. [2024-01-27 15:10:13,871 INFO L125 PetriNetUnfolderBase]: For 7042/7144 co-relation queries the response was YES. [2024-01-27 15:10:13,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 653 events. 273/653 cut-off events. For 7042/7144 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3719 event pairs, 30 based on Foata normal form. 31/684 useless extension candidates. Maximal degree in co-relation 3525. Up to 381 conditions per place. [2024-01-27 15:10:13,879 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 63 selfloop transitions, 32 changer transitions 12/116 dead transitions. [2024-01-27 15:10:13,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 116 transitions, 1580 flow [2024-01-27 15:10:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 156 transitions. [2024-01-27 15:10:13,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2024-01-27 15:10:13,883 INFO L175 Difference]: Start difference. First operand has 104 places, 90 transitions, 1182 flow. Second operand 10 states and 156 transitions. [2024-01-27 15:10:13,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 116 transitions, 1580 flow [2024-01-27 15:10:13,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 116 transitions, 1495 flow, removed 37 selfloop flow, removed 11 redundant places. [2024-01-27 15:10:13,907 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 1260 flow [2024-01-27 15:10:13,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1260, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2024-01-27 15:10:13,908 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 62 predicate places. [2024-01-27 15:10:13,908 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 1260 flow [2024-01-27 15:10:13,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:13,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:13,909 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 15:10:13,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-27 15:10:13,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:13,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:13,909 INFO L85 PathProgramCache]: Analyzing trace with hash -315670376, now seen corresponding path program 1 times [2024-01-27 15:10:13,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:13,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211941039] [2024-01-27 15:10:13,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:13,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:15,208 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 15:10:15,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:15,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211941039] [2024-01-27 15:10:15,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211941039] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:15,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:15,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-01-27 15:10:15,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959467791] [2024-01-27 15:10:15,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:15,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-01-27 15:10:15,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:15,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-01-27 15:10:15,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-01-27 15:10:15,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:15,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 1260 flow. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 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 15:10:15,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:15,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:15,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:16,127 INFO L124 PetriNetUnfolderBase]: 300/742 cut-off events. [2024-01-27 15:10:16,127 INFO L125 PetriNetUnfolderBase]: For 8536/8637 co-relation queries the response was YES. [2024-01-27 15:10:16,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4155 conditions, 742 events. 300/742 cut-off events. For 8536/8637 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4575 event pairs, 47 based on Foata normal form. 64/803 useless extension candidates. Maximal degree in co-relation 4112. Up to 367 conditions per place. [2024-01-27 15:10:16,135 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 69 selfloop transitions, 50 changer transitions 32/159 dead transitions. [2024-01-27 15:10:16,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 159 transitions, 2128 flow [2024-01-27 15:10:16,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-01-27 15:10:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-01-27 15:10:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 294 transitions. [2024-01-27 15:10:16,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4688995215311005 [2024-01-27 15:10:16,137 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 1260 flow. Second operand 19 states and 294 transitions. [2024-01-27 15:10:16,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 159 transitions, 2128 flow [2024-01-27 15:10:16,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 159 transitions, 2028 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-01-27 15:10:16,164 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 1595 flow [2024-01-27 15:10:16,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1595, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2024-01-27 15:10:16,166 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 77 predicate places. [2024-01-27 15:10:16,166 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 1595 flow [2024-01-27 15:10:16,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 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 15:10:16,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:16,167 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 15:10:16,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-27 15:10:16,168 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:16,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash 804887854, now seen corresponding path program 2 times [2024-01-27 15:10:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:16,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880801048] [2024-01-27 15:10:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:16,775 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 15:10:16,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:16,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880801048] [2024-01-27 15:10:16,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880801048] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:16,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:16,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:16,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911240179] [2024-01-27 15:10:16,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:16,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:16,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:16,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:16,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:16,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:16,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 1595 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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 15:10:16,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:16,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:16,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:17,333 INFO L124 PetriNetUnfolderBase]: 427/861 cut-off events. [2024-01-27 15:10:17,334 INFO L125 PetriNetUnfolderBase]: For 11908/11977 co-relation queries the response was YES. [2024-01-27 15:10:17,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5323 conditions, 861 events. 427/861 cut-off events. For 11908/11977 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4389 event pairs, 112 based on Foata normal form. 37/897 useless extension candidates. Maximal degree in co-relation 5275. Up to 501 conditions per place. [2024-01-27 15:10:17,344 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 69 selfloop transitions, 49 changer transitions 22/146 dead transitions. [2024-01-27 15:10:17,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 146 transitions, 2189 flow [2024-01-27 15:10:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:17,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 158 transitions. [2024-01-27 15:10:17,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47878787878787876 [2024-01-27 15:10:17,346 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 1595 flow. Second operand 10 states and 158 transitions. [2024-01-27 15:10:17,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 146 transitions, 2189 flow [2024-01-27 15:10:17,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 146 transitions, 1982 flow, removed 62 selfloop flow, removed 12 redundant places. [2024-01-27 15:10:17,375 INFO L231 Difference]: Finished difference. Result has 110 places, 105 transitions, 1509 flow [2024-01-27 15:10:17,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1423, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1509, PETRI_PLACES=110, PETRI_TRANSITIONS=105} [2024-01-27 15:10:17,375 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 73 predicate places. [2024-01-27 15:10:17,376 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 105 transitions, 1509 flow [2024-01-27 15:10:17,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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 15:10:17,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:17,376 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 15:10:17,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-27 15:10:17,377 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:17,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:17,377 INFO L85 PathProgramCache]: Analyzing trace with hash 344465880, now seen corresponding path program 3 times [2024-01-27 15:10:17,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:17,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604396352] [2024-01-27 15:10:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:17,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:17,780 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 15:10:17,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:17,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604396352] [2024-01-27 15:10:17,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604396352] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:17,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:17,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:17,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472778656] [2024-01-27 15:10:17,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:17,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:17,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:17,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:17,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 105 transitions, 1509 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:17,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:17,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:17,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:18,152 INFO L124 PetriNetUnfolderBase]: 267/636 cut-off events. [2024-01-27 15:10:18,153 INFO L125 PetriNetUnfolderBase]: For 7191/7250 co-relation queries the response was YES. [2024-01-27 15:10:18,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3798 conditions, 636 events. 267/636 cut-off events. For 7191/7250 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3643 event pairs, 56 based on Foata normal form. 16/651 useless extension candidates. Maximal degree in co-relation 3754. Up to 287 conditions per place. [2024-01-27 15:10:18,164 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 70 selfloop transitions, 35 changer transitions 20/133 dead transitions. [2024-01-27 15:10:18,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 133 transitions, 1967 flow [2024-01-27 15:10:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 151 transitions. [2024-01-27 15:10:18,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5084175084175084 [2024-01-27 15:10:18,166 INFO L175 Difference]: Start difference. First operand has 110 places, 105 transitions, 1509 flow. Second operand 9 states and 151 transitions. [2024-01-27 15:10:18,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 133 transitions, 1967 flow [2024-01-27 15:10:18,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 133 transitions, 1812 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-01-27 15:10:18,189 INFO L231 Difference]: Finished difference. Result has 110 places, 100 transitions, 1387 flow [2024-01-27 15:10:18,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1372, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1387, PETRI_PLACES=110, PETRI_TRANSITIONS=100} [2024-01-27 15:10:18,190 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 73 predicate places. [2024-01-27 15:10:18,190 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 100 transitions, 1387 flow [2024-01-27 15:10:18,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:18,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:18,190 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 15:10:18,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-01-27 15:10:18,191 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:18,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:18,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1515774933, now seen corresponding path program 2 times [2024-01-27 15:10:18,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:18,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464466184] [2024-01-27 15:10:18,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:18,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:18,646 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 15:10:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:18,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464466184] [2024-01-27 15:10:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464466184] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:18,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-27 15:10:18,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901189156] [2024-01-27 15:10:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:18,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 15:10:18,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 15:10:18,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-01-27 15:10:18,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:18,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 100 transitions, 1387 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 15:10:18,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:18,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:18,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:19,037 INFO L124 PetriNetUnfolderBase]: 290/689 cut-off events. [2024-01-27 15:10:19,037 INFO L125 PetriNetUnfolderBase]: For 7623/7676 co-relation queries the response was YES. [2024-01-27 15:10:19,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4048 conditions, 689 events. 290/689 cut-off events. For 7623/7676 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4147 event pairs, 60 based on Foata normal form. 18/704 useless extension candidates. Maximal degree in co-relation 4006. Up to 364 conditions per place. [2024-01-27 15:10:19,047 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 94 selfloop transitions, 16 changer transitions 29/147 dead transitions. [2024-01-27 15:10:19,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 147 transitions, 2143 flow [2024-01-27 15:10:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:10:19,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:10:19,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2024-01-27 15:10:19,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303030303030303 [2024-01-27 15:10:19,048 INFO L175 Difference]: Start difference. First operand has 110 places, 100 transitions, 1387 flow. Second operand 8 states and 140 transitions. [2024-01-27 15:10:19,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 147 transitions, 2143 flow [2024-01-27 15:10:19,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 147 transitions, 2050 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-01-27 15:10:19,074 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 1439 flow [2024-01-27 15:10:19,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1439, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2024-01-27 15:10:19,074 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 74 predicate places. [2024-01-27 15:10:19,075 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 1439 flow [2024-01-27 15:10:19,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 15:10:19,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:19,075 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 15:10:19,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-01-27 15:10:19,076 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:19,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:19,076 INFO L85 PathProgramCache]: Analyzing trace with hash -511350667, now seen corresponding path program 3 times [2024-01-27 15:10:19,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:19,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39618296] [2024-01-27 15:10:19,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:19,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:19,641 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 15:10:19,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:19,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39618296] [2024-01-27 15:10:19,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39618296] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:19,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:19,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:19,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956478358] [2024-01-27 15:10:19,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:19,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:19,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:19,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:19,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:19,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:19,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 1439 flow. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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 15:10:19,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:19,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:19,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:20,129 INFO L124 PetriNetUnfolderBase]: 381/803 cut-off events. [2024-01-27 15:10:20,130 INFO L125 PetriNetUnfolderBase]: For 9054/9106 co-relation queries the response was YES. [2024-01-27 15:10:20,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4533 conditions, 803 events. 381/803 cut-off events. For 9054/9106 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4151 event pairs, 117 based on Foata normal form. 27/830 useless extension candidates. Maximal degree in co-relation 4490. Up to 478 conditions per place. [2024-01-27 15:10:20,140 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 82 selfloop transitions, 34 changer transitions 29/151 dead transitions. [2024-01-27 15:10:20,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 151 transitions, 2100 flow [2024-01-27 15:10:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 156 transitions. [2024-01-27 15:10:20,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2024-01-27 15:10:20,170 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 1439 flow. Second operand 10 states and 156 transitions. [2024-01-27 15:10:20,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 151 transitions, 2100 flow [2024-01-27 15:10:20,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 151 transitions, 2052 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-01-27 15:10:20,193 INFO L231 Difference]: Finished difference. Result has 118 places, 107 transitions, 1540 flow [2024-01-27 15:10:20,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1540, PETRI_PLACES=118, PETRI_TRANSITIONS=107} [2024-01-27 15:10:20,194 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 81 predicate places. [2024-01-27 15:10:20,194 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 107 transitions, 1540 flow [2024-01-27 15:10:20,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 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 15:10:20,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:20,195 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 15:10:20,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-01-27 15:10:20,196 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:20,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:20,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1068243859, now seen corresponding path program 4 times [2024-01-27 15:10:20,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:20,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025149908] [2024-01-27 15:10:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:20,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:20,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025149908] [2024-01-27 15:10:20,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025149908] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:20,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:20,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-27 15:10:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257159859] [2024-01-27 15:10:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:20,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 15:10:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 15:10:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-01-27 15:10:20,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:20,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 107 transitions, 1540 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 15:10:20,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:20,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:20,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:20,986 INFO L124 PetriNetUnfolderBase]: 260/653 cut-off events. [2024-01-27 15:10:20,986 INFO L125 PetriNetUnfolderBase]: For 8724/8774 co-relation queries the response was YES. [2024-01-27 15:10:20,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3953 conditions, 653 events. 260/653 cut-off events. For 8724/8774 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3962 event pairs, 61 based on Foata normal form. 21/673 useless extension candidates. Maximal degree in co-relation 3907. Up to 295 conditions per place. [2024-01-27 15:10:20,993 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 85 selfloop transitions, 18 changer transitions 39/150 dead transitions. [2024-01-27 15:10:20,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 150 transitions, 2344 flow [2024-01-27 15:10:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:10:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:10:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2024-01-27 15:10:20,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5189393939393939 [2024-01-27 15:10:20,995 INFO L175 Difference]: Start difference. First operand has 118 places, 107 transitions, 1540 flow. Second operand 8 states and 137 transitions. [2024-01-27 15:10:20,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 150 transitions, 2344 flow [2024-01-27 15:10:21,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 150 transitions, 2220 flow, removed 24 selfloop flow, removed 9 redundant places. [2024-01-27 15:10:21,022 INFO L231 Difference]: Finished difference. Result has 117 places, 101 transitions, 1379 flow [2024-01-27 15:10:21,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1379, PETRI_PLACES=117, PETRI_TRANSITIONS=101} [2024-01-27 15:10:21,023 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 80 predicate places. [2024-01-27 15:10:21,023 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 101 transitions, 1379 flow [2024-01-27 15:10:21,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 15:10:21,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:21,024 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 15:10:21,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-01-27 15:10:21,024 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:21,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1026133775, now seen corresponding path program 5 times [2024-01-27 15:10:21,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:21,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970338494] [2024-01-27 15:10:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:21,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:21,628 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 15:10:21,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:21,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970338494] [2024-01-27 15:10:21,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970338494] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:21,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:21,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:21,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981059159] [2024-01-27 15:10:21,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:21,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:21,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:21,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:21,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 101 transitions, 1379 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:21,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:21,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:21,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:21,958 INFO L124 PetriNetUnfolderBase]: 181/498 cut-off events. [2024-01-27 15:10:21,958 INFO L125 PetriNetUnfolderBase]: For 6027/6073 co-relation queries the response was YES. [2024-01-27 15:10:21,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 498 events. 181/498 cut-off events. For 6027/6073 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2866 event pairs, 26 based on Foata normal form. 18/515 useless extension candidates. Maximal degree in co-relation 2778. Up to 176 conditions per place. [2024-01-27 15:10:21,963 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 67 selfloop transitions, 16 changer transitions 32/123 dead transitions. [2024-01-27 15:10:21,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 1762 flow [2024-01-27 15:10:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 141 transitions. [2024-01-27 15:10:21,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47474747474747475 [2024-01-27 15:10:21,964 INFO L175 Difference]: Start difference. First operand has 117 places, 101 transitions, 1379 flow. Second operand 9 states and 141 transitions. [2024-01-27 15:10:21,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 1762 flow [2024-01-27 15:10:21,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 123 transitions, 1691 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-01-27 15:10:21,984 INFO L231 Difference]: Finished difference. Result has 122 places, 85 transitions, 1090 flow [2024-01-27 15:10:21,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1090, PETRI_PLACES=122, PETRI_TRANSITIONS=85} [2024-01-27 15:10:21,984 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 85 predicate places. [2024-01-27 15:10:21,985 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 85 transitions, 1090 flow [2024-01-27 15:10:21,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:21,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:21,985 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 15:10:21,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-01-27 15:10:21,985 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:21,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1253645366, now seen corresponding path program 4 times [2024-01-27 15:10:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:21,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116499529] [2024-01-27 15:10:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:21,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:22,400 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 15:10:22,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:22,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116499529] [2024-01-27 15:10:22,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116499529] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:22,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:22,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-27 15:10:22,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291300415] [2024-01-27 15:10:22,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:22,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-01-27 15:10:22,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:22,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-01-27 15:10:22,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-01-27 15:10:22,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:22,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 85 transitions, 1090 flow. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:22,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:22,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:22,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:22,623 INFO L124 PetriNetUnfolderBase]: 144/407 cut-off events. [2024-01-27 15:10:22,624 INFO L125 PetriNetUnfolderBase]: For 4130/4146 co-relation queries the response was YES. [2024-01-27 15:10:22,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 407 events. 144/407 cut-off events. For 4130/4146 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2240 event pairs, 35 based on Foata normal form. 11/416 useless extension candidates. Maximal degree in co-relation 2227. Up to 246 conditions per place. [2024-01-27 15:10:22,628 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 54 selfloop transitions, 23 changer transitions 22/107 dead transitions. [2024-01-27 15:10:22,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 107 transitions, 1438 flow [2024-01-27 15:10:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:22,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2024-01-27 15:10:22,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4882154882154882 [2024-01-27 15:10:22,630 INFO L175 Difference]: Start difference. First operand has 122 places, 85 transitions, 1090 flow. Second operand 9 states and 145 transitions. [2024-01-27 15:10:22,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 107 transitions, 1438 flow [2024-01-27 15:10:22,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 107 transitions, 1286 flow, removed 22 selfloop flow, removed 15 redundant places. [2024-01-27 15:10:22,648 INFO L231 Difference]: Finished difference. Result has 115 places, 77 transitions, 874 flow [2024-01-27 15:10:22,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=874, PETRI_PLACES=115, PETRI_TRANSITIONS=77} [2024-01-27 15:10:22,649 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 78 predicate places. [2024-01-27 15:10:22,649 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 77 transitions, 874 flow [2024-01-27 15:10:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 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 15:10:22,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:22,650 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] [2024-01-27 15:10:22,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-01-27 15:10:22,650 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:22,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1904938942, now seen corresponding path program 1 times [2024-01-27 15:10:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:22,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041602470] [2024-01-27 15:10:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:23,034 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 15:10:23,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:23,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041602470] [2024-01-27 15:10:23,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041602470] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:23,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:23,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-27 15:10:23,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737298014] [2024-01-27 15:10:23,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:23,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 15:10:23,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:23,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 15:10:23,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-01-27 15:10:23,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-01-27 15:10:23,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 77 transitions, 874 flow. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 15:10:23,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:23,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-01-27 15:10:23,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:23,308 INFO L124 PetriNetUnfolderBase]: 298/643 cut-off events. [2024-01-27 15:10:23,308 INFO L125 PetriNetUnfolderBase]: For 4790/4811 co-relation queries the response was YES. [2024-01-27 15:10:23,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3055 conditions, 643 events. 298/643 cut-off events. For 4790/4811 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3222 event pairs, 56 based on Foata normal form. 22/663 useless extension candidates. Maximal degree in co-relation 3010. Up to 288 conditions per place. [2024-01-27 15:10:23,313 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 44 selfloop transitions, 28 changer transitions 37/118 dead transitions. [2024-01-27 15:10:23,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 1367 flow [2024-01-27 15:10:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 15:10:23,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 15:10:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2024-01-27 15:10:23,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49158249158249157 [2024-01-27 15:10:23,315 INFO L175 Difference]: Start difference. First operand has 115 places, 77 transitions, 874 flow. Second operand 9 states and 146 transitions. [2024-01-27 15:10:23,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 1367 flow [2024-01-27 15:10:23,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 118 transitions, 1223 flow, removed 24 selfloop flow, removed 14 redundant places. [2024-01-27 15:10:23,326 INFO L231 Difference]: Finished difference. Result has 109 places, 73 transitions, 834 flow [2024-01-27 15:10:23,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=834, PETRI_PLACES=109, PETRI_TRANSITIONS=73} [2024-01-27 15:10:23,327 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 72 predicate places. [2024-01-27 15:10:23,327 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 73 transitions, 834 flow [2024-01-27 15:10:23,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 15:10:23,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:23,328 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] [2024-01-27 15:10:23,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-01-27 15:10:23,328 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:23,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash 854925254, now seen corresponding path program 2 times [2024-01-27 15:10:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:23,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291339247] [2024-01-27 15:10:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:23,942 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 15:10:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:23,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291339247] [2024-01-27 15:10:23,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291339247] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:23,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:23,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-01-27 15:10:23,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462980386] [2024-01-27 15:10:23,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:23,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-27 15:10:23,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:23,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-27 15:10:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-01-27 15:10:23,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:23,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 73 transitions, 834 flow. Second operand has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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 15:10:23,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:23,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:23,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:24,199 INFO L124 PetriNetUnfolderBase]: 123/361 cut-off events. [2024-01-27 15:10:24,200 INFO L125 PetriNetUnfolderBase]: For 2423/2435 co-relation queries the response was YES. [2024-01-27 15:10:24,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 361 events. 123/361 cut-off events. For 2423/2435 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1955 event pairs, 40 based on Foata normal form. 12/372 useless extension candidates. Maximal degree in co-relation 1715. Up to 157 conditions per place. [2024-01-27 15:10:24,203 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 46 selfloop transitions, 26 changer transitions 13/93 dead transitions. [2024-01-27 15:10:24,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 93 transitions, 1134 flow [2024-01-27 15:10:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:10:24,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:10:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions. [2024-01-27 15:10:24,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-01-27 15:10:24,205 INFO L175 Difference]: Start difference. First operand has 109 places, 73 transitions, 834 flow. Second operand 8 states and 128 transitions. [2024-01-27 15:10:24,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 93 transitions, 1134 flow [2024-01-27 15:10:24,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 996 flow, removed 28 selfloop flow, removed 15 redundant places. [2024-01-27 15:10:24,215 INFO L231 Difference]: Finished difference. Result has 97 places, 74 transitions, 825 flow [2024-01-27 15:10:24,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=825, PETRI_PLACES=97, PETRI_TRANSITIONS=74} [2024-01-27 15:10:24,216 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 60 predicate places. [2024-01-27 15:10:24,216 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 74 transitions, 825 flow [2024-01-27 15:10:24,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 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 15:10:24,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:24,217 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] [2024-01-27 15:10:24,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-01-27 15:10:24,217 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:24,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:24,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2102108310, now seen corresponding path program 3 times [2024-01-27 15:10:24,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:24,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248290288] [2024-01-27 15:10:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:24,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:24,807 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 15:10:24,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:24,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248290288] [2024-01-27 15:10:24,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248290288] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:24,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:24,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-27 15:10:24,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634381751] [2024-01-27 15:10:24,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:24,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-01-27 15:10:24,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-01-27 15:10:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-01-27 15:10:24,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-01-27 15:10:24,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 74 transitions, 825 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 15:10:24,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:24,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-01-27 15:10:24,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:25,140 INFO L124 PetriNetUnfolderBase]: 116/335 cut-off events. [2024-01-27 15:10:25,141 INFO L125 PetriNetUnfolderBase]: For 1848/1850 co-relation queries the response was YES. [2024-01-27 15:10:25,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 335 events. 116/335 cut-off events. For 1848/1850 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1770 event pairs, 31 based on Foata normal form. 5/338 useless extension candidates. Maximal degree in co-relation 1562. Up to 153 conditions per place. [2024-01-27 15:10:25,143 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 47 selfloop transitions, 26 changer transitions 15/96 dead transitions. [2024-01-27 15:10:25,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 96 transitions, 1072 flow [2024-01-27 15:10:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2024-01-27 15:10:25,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4696969696969697 [2024-01-27 15:10:25,145 INFO L175 Difference]: Start difference. First operand has 97 places, 74 transitions, 825 flow. Second operand 10 states and 155 transitions. [2024-01-27 15:10:25,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 96 transitions, 1072 flow [2024-01-27 15:10:25,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 1022 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-01-27 15:10:25,154 INFO L231 Difference]: Finished difference. Result has 99 places, 69 transitions, 777 flow [2024-01-27 15:10:25,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=777, PETRI_PLACES=99, PETRI_TRANSITIONS=69} [2024-01-27 15:10:25,154 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 62 predicate places. [2024-01-27 15:10:25,154 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 69 transitions, 777 flow [2024-01-27 15:10:25,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 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 15:10:25,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:10:25,155 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] [2024-01-27 15:10:25,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-01-27 15:10:25,155 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-27 15:10:25,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:10:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash -628611970, now seen corresponding path program 4 times [2024-01-27 15:10:25,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:10:25,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862269930] [2024-01-27 15:10:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:10:25,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:10:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:10:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:10:26,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:10:26,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862269930] [2024-01-27 15:10:26,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862269930] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:10:26,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:10:26,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-01-27 15:10:26,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834928342] [2024-01-27 15:10:26,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:10:26,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-01-27 15:10:26,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:10:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-01-27 15:10:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-01-27 15:10:26,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-27 15:10:26,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 69 transitions, 777 flow. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 15:10:26,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:10:26,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-27 15:10:26,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:10:26,454 INFO L124 PetriNetUnfolderBase]: 160/364 cut-off events. [2024-01-27 15:10:26,454 INFO L125 PetriNetUnfolderBase]: For 2228/2228 co-relation queries the response was YES. [2024-01-27 15:10:26,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 364 events. 160/364 cut-off events. For 2228/2228 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1602 event pairs, 4 based on Foata normal form. 9/373 useless extension candidates. Maximal degree in co-relation 1702. Up to 124 conditions per place. [2024-01-27 15:10:26,456 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2024-01-27 15:10:26,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 90 transitions, 1005 flow [2024-01-27 15:10:26,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 15:10:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 15:10:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 131 transitions. [2024-01-27 15:10:26,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.396969696969697 [2024-01-27 15:10:26,458 INFO L175 Difference]: Start difference. First operand has 99 places, 69 transitions, 777 flow. Second operand 10 states and 131 transitions. [2024-01-27 15:10:26,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 90 transitions, 1005 flow [2024-01-27 15:10:26,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 951 flow, removed 5 selfloop flow, removed 10 redundant places. [2024-01-27 15:10:26,463 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2024-01-27 15:10:26,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0} [2024-01-27 15:10:26,463 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 53 predicate places. [2024-01-27 15:10:26,464 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2024-01-27 15:10:26,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 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 15:10:26,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-01-27 15:10:26,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-01-27 15:10:26,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-01-27 15:10:26,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-01-27 15:10:26,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-01-27 15:10:26,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-01-27 15:10:26,468 INFO L445 BasicCegarLoop]: Path program histogram: [5, 4, 4, 4, 3, 3, 1, 1, 1] [2024-01-27 15:10:26,474 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:10:26,474 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:10:26,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:10:26 BasicIcfg [2024-01-27 15:10:26,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:10:26,479 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:10:26,479 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:10:26,479 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:10:26,480 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:09:59" (3/4) ... [2024-01-27 15:10:26,481 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:10:26,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-01-27 15:10:26,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-01-27 15:10:26,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-01-27 15:10:26,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-01-27 15:10:26,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-01-27 15:10:26,488 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-01-27 15:10:26,562 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:10:26,563 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:10:26,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:10:26,563 INFO L158 Benchmark]: Toolchain (without parser) took 28523.66ms. Allocated memory was 176.2MB in the beginning and 775.9MB in the end (delta: 599.8MB). Free memory was 106.7MB in the beginning and 555.0MB in the end (delta: -448.3MB). Peak memory consumption was 151.7MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,564 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:10:26,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.08ms. Allocated memory is still 176.2MB. Free memory was 106.5MB in the beginning and 137.3MB in the end (delta: -30.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.16ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 134.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,565 INFO L158 Benchmark]: Boogie Preprocessor took 95.33ms. Allocated memory is still 176.2MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,565 INFO L158 Benchmark]: RCFGBuilder took 761.13ms. Allocated memory is still 176.2MB. Free memory was 130.3MB in the beginning and 140.7MB in the end (delta: -10.4MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,565 INFO L158 Benchmark]: TraceAbstraction took 26944.53ms. Allocated memory was 176.2MB in the beginning and 775.9MB in the end (delta: 599.8MB). Free memory was 140.7MB in the beginning and 560.2MB in the end (delta: -419.5MB). Peak memory consumption was 180.2MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,565 INFO L158 Benchmark]: Witness Printer took 83.88ms. Allocated memory is still 775.9MB. Free memory was 560.2MB in the beginning and 555.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:10:26,567 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.08ms. Allocated memory is still 176.2MB. Free memory was 106.5MB in the beginning and 137.3MB in the end (delta: -30.9MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.16ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 134.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.33ms. Allocated memory is still 176.2MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 761.13ms. Allocated memory is still 176.2MB. Free memory was 130.3MB in the beginning and 140.7MB in the end (delta: -10.4MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26944.53ms. Allocated memory was 176.2MB in the beginning and 775.9MB in the end (delta: 599.8MB). Free memory was 140.7MB in the beginning and 560.2MB in the end (delta: -419.5MB). Peak memory consumption was 180.2MB. Max. memory is 16.1GB. * Witness Printer took 83.88ms. Allocated memory is still 775.9MB. Free memory was 560.2MB in the beginning and 555.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 26.8s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1327 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1247 mSDsluCounter, 1554 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1371 mSDsCounter, 440 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5456 IncrementalHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 440 mSolverCounterUnsat, 183 mSDtfsCounter, 5456 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1595occurred in iteration=15, InterpolantAutomatonStates: 247, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 530 NumberOfCodeBlocks, 530 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 504 ConstructedInterpolants, 0 QuantifiedInterpolants, 5595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 15:10:26,594 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