./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu --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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:30,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:30,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:40:30,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:30,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:30,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:30,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:30,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:30,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:30,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:30,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:30,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:30,285 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:30,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:30,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:30,288 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:40:30,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:30,289 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:40:30,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:30,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:30,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:30,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:30,291 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:40:30,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:30,292 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:30,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:30,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:30,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:30,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:30,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:30,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:30,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:30,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:30,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:30,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:30,296 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:30,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:30,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:30,297 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:30,297 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2023-11-19 07:40:30,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:30,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:30,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:30,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:30,688 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:30,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:40:34,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:34,633 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:34,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:40:34,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/data/0741fd6b3/3ddf8e54f9be4e4ba2a96edce1cb4a58/FLAG63920e64b [2023-11-19 07:40:34,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/data/0741fd6b3/3ddf8e54f9be4e4ba2a96edce1cb4a58 [2023-11-19 07:40:34,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:34,712 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:34,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:34,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:34,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:34,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:34" (1/1) ... [2023-11-19 07:40:34,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af5693c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:34, skipping insertion in model container [2023-11-19 07:40:34,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:34" (1/1) ... [2023-11-19 07:40:34,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:35,060 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2023-11-19 07:40:35,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:35,409 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:35,431 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2023-11-19 07:40:35,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:35,615 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:35,615 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:40:35,625 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:35,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35 WrapperNode [2023-11-19 07:40:35,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:35,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:35,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:35,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:35,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,706 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2023-11-19 07:40:35,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:35,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:35,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:35,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:35,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:35,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:35,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:35,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:35,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (1/1) ... [2023-11-19 07:40:35,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:35,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:35,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:35,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d02e8ef6-01e9-4105-8131-1a7f5fb9985d/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:35,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:40:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:40:35,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:40:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:40:35,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:40:35,869 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:40:35,869 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:40:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:40:35,870 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:40:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:35,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:40:35,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:35,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:35,873 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:40:36,061 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:36,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:36,503 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:36,744 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:36,745 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:40:36,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:36 BoogieIcfgContainer [2023-11-19 07:40:36,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:36,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:36,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:36,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:36,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:34" (1/3) ... [2023-11-19 07:40:36,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f36178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:36, skipping insertion in model container [2023-11-19 07:40:36,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:35" (2/3) ... [2023-11-19 07:40:36,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f36178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:36, skipping insertion in model container [2023-11-19 07:40:36,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:36" (3/3) ... [2023-11-19 07:40:36,786 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-19 07:40:36,797 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:40:36,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:36,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:40:36,815 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:40:36,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:40:36,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 276 flow [2023-11-19 07:40:37,045 INFO L124 PetriNetUnfolderBase]: 2/126 cut-off events. [2023-11-19 07:40:37,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:37,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-11-19 07:40:37,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 130 transitions, 276 flow [2023-11-19 07:40:37,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 126 transitions, 264 flow [2023-11-19 07:40:37,073 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:37,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 126 transitions, 264 flow [2023-11-19 07:40:37,090 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 126 transitions, 264 flow [2023-11-19 07:40:37,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 126 transitions, 264 flow [2023-11-19 07:40:37,160 INFO L124 PetriNetUnfolderBase]: 2/126 cut-off events. [2023-11-19 07:40:37,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:37,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2023-11-19 07:40:37,165 INFO L119 LiptonReduction]: Number of co-enabled transitions 3248 [2023-11-19 07:40:42,752 INFO L134 LiptonReduction]: Checked pairs total: 7407 [2023-11-19 07:40:42,753 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-11-19 07:40:42,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:42,803 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;@25447f3b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:42,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-19 07:40:42,823 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:42,827 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-19 07:40:42,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:42,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:42,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:42,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:42,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:42,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1285516963, now seen corresponding path program 1 times [2023-11-19 07:40:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426632151] [2023-11-19 07:40:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:43,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426632151] [2023-11-19 07:40:43,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426632151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:43,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:43,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:40:43,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824486453] [2023-11-19 07:40:43,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:43,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:43,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:43,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:43,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:43,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 238 [2023-11-19 07:40:43,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:43,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:43,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 238 [2023-11-19 07:40:43,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:45,427 INFO L124 PetriNetUnfolderBase]: 5463/7888 cut-off events. [2023-11-19 07:40:45,429 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-19 07:40:45,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15488 conditions, 7888 events. 5463/7888 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 43044 event pairs, 1287 based on Foata normal form. 256/7616 useless extension candidates. Maximal degree in co-relation 15476. Up to 5521 conditions per place. [2023-11-19 07:40:45,518 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 35 selfloop transitions, 2 changer transitions 4/43 dead transitions. [2023-11-19 07:40:45,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 180 flow [2023-11-19 07:40:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:45,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-11-19 07:40:45,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2023-11-19 07:40:45,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-11-19 07:40:45,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-11-19 07:40:45,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:45,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-11-19 07:40:45,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:45,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:45,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:45,580 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 3 states and 392 transitions. [2023-11-19 07:40:45,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 180 flow [2023-11-19 07:40:45,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:40:45,595 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 64 flow [2023-11-19 07:40:45,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-11-19 07:40:45,604 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-11-19 07:40:45,605 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 64 flow [2023-11-19 07:40:45,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:45,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:45,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:45,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:45,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:45,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:45,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1390214769, now seen corresponding path program 1 times [2023-11-19 07:40:45,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:45,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173748667] [2023-11-19 07:40:45,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:45,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:46,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:46,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173748667] [2023-11-19 07:40:46,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173748667] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:46,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:46,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:46,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791076550] [2023-11-19 07:40:46,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:46,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:46,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:46,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:46,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 238 [2023-11-19 07:40:46,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:46,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:46,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 238 [2023-11-19 07:40:46,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:47,461 INFO L124 PetriNetUnfolderBase]: 4247/6056 cut-off events. [2023-11-19 07:40:47,462 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2023-11-19 07:40:47,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12486 conditions, 6056 events. 4247/6056 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 30461 event pairs, 1375 based on Foata normal form. 256/6300 useless extension candidates. Maximal degree in co-relation 12476. Up to 4745 conditions per place. [2023-11-19 07:40:47,521 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 36 selfloop transitions, 3 changer transitions 22/63 dead transitions. [2023-11-19 07:40:47,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 63 transitions, 270 flow [2023-11-19 07:40:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:40:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 608 transitions. [2023-11-19 07:40:47,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5109243697478991 [2023-11-19 07:40:47,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 608 transitions. [2023-11-19 07:40:47,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 608 transitions. [2023-11-19 07:40:47,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:47,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 608 transitions. [2023-11-19 07:40:47,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:47,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:47,542 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:47,543 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 64 flow. Second operand 5 states and 608 transitions. [2023-11-19 07:40:47,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 63 transitions, 270 flow [2023-11-19 07:40:47,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 63 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:47,552 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 87 flow [2023-11-19 07:40:47,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=87, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2023-11-19 07:40:47,561 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 0 predicate places. [2023-11-19 07:40:47,562 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 87 flow [2023-11-19 07:40:47,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:47,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:47,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:47,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:47,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:47,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash 146954844, now seen corresponding path program 1 times [2023-11-19 07:40:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223531902] [2023-11-19 07:40:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:47,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223531902] [2023-11-19 07:40:47,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223531902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:47,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:47,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:40:47,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119508837] [2023-11-19 07:40:47,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:47,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:47,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:47,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:47,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:47,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 238 [2023-11-19 07:40:47,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:47,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:47,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 238 [2023-11-19 07:40:47,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:49,275 INFO L124 PetriNetUnfolderBase]: 3931/5580 cut-off events. [2023-11-19 07:40:49,276 INFO L125 PetriNetUnfolderBase]: For 1596/1596 co-relation queries the response was YES. [2023-11-19 07:40:49,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13169 conditions, 5580 events. 3931/5580 cut-off events. For 1596/1596 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 28626 event pairs, 1055 based on Foata normal form. 192/5758 useless extension candidates. Maximal degree in co-relation 13156. Up to 4571 conditions per place. [2023-11-19 07:40:49,342 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 40 selfloop transitions, 3 changer transitions 20/65 dead transitions. [2023-11-19 07:40:49,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 65 transitions, 302 flow [2023-11-19 07:40:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:40:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 608 transitions. [2023-11-19 07:40:49,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5109243697478991 [2023-11-19 07:40:49,346 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 608 transitions. [2023-11-19 07:40:49,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 608 transitions. [2023-11-19 07:40:49,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:49,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 608 transitions. [2023-11-19 07:40:49,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:49,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:49,356 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:49,356 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 87 flow. Second operand 5 states and 608 transitions. [2023-11-19 07:40:49,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 65 transitions, 302 flow [2023-11-19 07:40:49,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 65 transitions, 296 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:49,396 INFO L231 Difference]: Finished difference. Result has 45 places, 30 transitions, 109 flow [2023-11-19 07:40:49,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=45, PETRI_TRANSITIONS=30} [2023-11-19 07:40:49,397 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2023-11-19 07:40:49,397 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 30 transitions, 109 flow [2023-11-19 07:40:49,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:49,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:49,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:49,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:40:49,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:49,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:49,400 INFO L85 PathProgramCache]: Analyzing trace with hash 259644716, now seen corresponding path program 1 times [2023-11-19 07:40:49,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:49,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82383790] [2023-11-19 07:40:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:49,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:50,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82383790] [2023-11-19 07:40:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82383790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:50,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:50,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957451484] [2023-11-19 07:40:50,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:50,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:50,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:50,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:50,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:50,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 238 [2023-11-19 07:40:50,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 30 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:50,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:50,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 238 [2023-11-19 07:40:50,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:53,182 INFO L124 PetriNetUnfolderBase]: 8122/11405 cut-off events. [2023-11-19 07:40:53,183 INFO L125 PetriNetUnfolderBase]: For 9309/9309 co-relation queries the response was YES. [2023-11-19 07:40:53,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29800 conditions, 11405 events. 8122/11405 cut-off events. For 9309/9309 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 60464 event pairs, 2279 based on Foata normal form. 430/11835 useless extension candidates. Maximal degree in co-relation 29784. Up to 6597 conditions per place. [2023-11-19 07:40:53,298 INFO L140 encePairwiseOnDemand]: 226/238 looper letters, 39 selfloop transitions, 14 changer transitions 27/81 dead transitions. [2023-11-19 07:40:53,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 81 transitions, 443 flow [2023-11-19 07:40:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:40:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:40:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 574 transitions. [2023-11-19 07:40:53,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4823529411764706 [2023-11-19 07:40:53,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 574 transitions. [2023-11-19 07:40:53,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 574 transitions. [2023-11-19 07:40:53,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:53,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 574 transitions. [2023-11-19 07:40:53,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:53,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:53,313 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:53,313 INFO L175 Difference]: Start difference. First operand has 45 places, 30 transitions, 109 flow. Second operand 5 states and 574 transitions. [2023-11-19 07:40:53,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 81 transitions, 443 flow [2023-11-19 07:40:53,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 81 transitions, 434 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:53,431 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 258 flow [2023-11-19 07:40:53,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2023-11-19 07:40:53,434 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2023-11-19 07:40:53,434 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 258 flow [2023-11-19 07:40:53,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:53,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:53,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:53,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:40:53,436 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:53,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1017818410, now seen corresponding path program 2 times [2023-11-19 07:40:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:53,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780431618] [2023-11-19 07:40:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:55,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:55,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780431618] [2023-11-19 07:40:55,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780431618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:55,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:55,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:55,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719258246] [2023-11-19 07:40:55,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:55,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:40:55,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:55,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:40:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:40:55,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 238 [2023-11-19 07:40:55,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:55,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:55,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 238 [2023-11-19 07:40:55,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:58,128 INFO L124 PetriNetUnfolderBase]: 10595/14706 cut-off events. [2023-11-19 07:40:58,128 INFO L125 PetriNetUnfolderBase]: For 30627/30627 co-relation queries the response was YES. [2023-11-19 07:40:58,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51721 conditions, 14706 events. 10595/14706 cut-off events. For 30627/30627 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 75943 event pairs, 1139 based on Foata normal form. 566/15272 useless extension candidates. Maximal degree in co-relation 51701. Up to 7725 conditions per place. [2023-11-19 07:40:58,293 INFO L140 encePairwiseOnDemand]: 225/238 looper letters, 66 selfloop transitions, 24 changer transitions 49/139 dead transitions. [2023-11-19 07:40:58,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 139 transitions, 1122 flow [2023-11-19 07:40:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:40:58,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:40:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 793 transitions. [2023-11-19 07:40:58,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4759903961584634 [2023-11-19 07:40:58,300 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 793 transitions. [2023-11-19 07:40:58,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 793 transitions. [2023-11-19 07:40:58,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:58,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 793 transitions. [2023-11-19 07:40:58,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.28571428571429) internal successors, (793), 7 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:58,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:58,314 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:58,314 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 258 flow. Second operand 7 states and 793 transitions. [2023-11-19 07:40:58,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 139 transitions, 1122 flow [2023-11-19 07:40:58,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 139 transitions, 1042 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:58,460 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 506 flow [2023-11-19 07:40:58,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=506, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2023-11-19 07:40:58,461 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2023-11-19 07:40:58,462 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 506 flow [2023-11-19 07:40:58,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:58,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:58,463 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:58,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:40:58,464 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:40:58,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash -782547800, now seen corresponding path program 1 times [2023-11-19 07:40:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:58,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194872890] [2023-11-19 07:40:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:58,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:58,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:58,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194872890] [2023-11-19 07:40:58,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194872890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:58,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:58,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:40:58,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825710293] [2023-11-19 07:40:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:58,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:58,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:58,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:58,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 238 [2023-11-19 07:40:58,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 506 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:58,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:58,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 238 [2023-11-19 07:40:58,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:01,977 INFO L124 PetriNetUnfolderBase]: 11709/16750 cut-off events. [2023-11-19 07:41:01,977 INFO L125 PetriNetUnfolderBase]: For 70781/71520 co-relation queries the response was YES. [2023-11-19 07:41:02,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70453 conditions, 16750 events. 11709/16750 cut-off events. For 70781/71520 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 97985 event pairs, 3365 based on Foata normal form. 518/17060 useless extension candidates. Maximal degree in co-relation 70427. Up to 8203 conditions per place. [2023-11-19 07:41:02,120 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 72 selfloop transitions, 9 changer transitions 28/114 dead transitions. [2023-11-19 07:41:02,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 114 transitions, 1064 flow [2023-11-19 07:41:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:41:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 607 transitions. [2023-11-19 07:41:02,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5100840336134453 [2023-11-19 07:41:02,126 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 607 transitions. [2023-11-19 07:41:02,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 607 transitions. [2023-11-19 07:41:02,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:02,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 607 transitions. [2023-11-19 07:41:02,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:02,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:02,133 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 238.0) internal successors, (1428), 6 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:02,134 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 506 flow. Second operand 5 states and 607 transitions. [2023-11-19 07:41:02,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 114 transitions, 1064 flow [2023-11-19 07:41:02,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 1048 flow, removed 8 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:02,386 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 517 flow [2023-11-19 07:41:02,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=517, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2023-11-19 07:41:02,390 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2023-11-19 07:41:02,390 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 517 flow [2023-11-19 07:41:02,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:02,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:02,391 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:02,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:41:02,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:41:02,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash -770763178, now seen corresponding path program 1 times [2023-11-19 07:41:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:02,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354685925] [2023-11-19 07:41:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:03,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:03,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354685925] [2023-11-19 07:41:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354685925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:03,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:03,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441733841] [2023-11-19 07:41:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:03,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:03,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:03,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:03,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:03,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 238 [2023-11-19 07:41:03,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:03,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:03,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 238 [2023-11-19 07:41:03,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:06,382 INFO L124 PetriNetUnfolderBase]: 11628/16641 cut-off events. [2023-11-19 07:41:06,382 INFO L125 PetriNetUnfolderBase]: For 85682/86234 co-relation queries the response was YES. [2023-11-19 07:41:06,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70315 conditions, 16641 events. 11628/16641 cut-off events. For 85682/86234 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 94153 event pairs, 2219 based on Foata normal form. 650/17291 useless extension candidates. Maximal degree in co-relation 70285. Up to 11733 conditions per place. [2023-11-19 07:41:06,668 INFO L140 encePairwiseOnDemand]: 232/238 looper letters, 92 selfloop transitions, 12 changer transitions 41/148 dead transitions. [2023-11-19 07:41:06,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 148 transitions, 1550 flow [2023-11-19 07:41:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:41:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 843 transitions. [2023-11-19 07:41:06,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060024009603842 [2023-11-19 07:41:06,675 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 843 transitions. [2023-11-19 07:41:06,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 843 transitions. [2023-11-19 07:41:06,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:06,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 843 transitions. [2023-11-19 07:41:06,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:06,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:06,687 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 238.0) internal successors, (1904), 8 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:06,687 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 517 flow. Second operand 7 states and 843 transitions. [2023-11-19 07:41:06,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 148 transitions, 1550 flow [2023-11-19 07:41:06,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 148 transitions, 1504 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-19 07:41:06,906 INFO L231 Difference]: Finished difference. Result has 65 places, 66 transitions, 587 flow [2023-11-19 07:41:06,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=587, PETRI_PLACES=65, PETRI_TRANSITIONS=66} [2023-11-19 07:41:06,908 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2023-11-19 07:41:06,909 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 66 transitions, 587 flow [2023-11-19 07:41:06,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:06,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:06,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:06,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:41:06,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:41:06,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash -169938290, now seen corresponding path program 1 times [2023-11-19 07:41:06,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:06,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980827967] [2023-11-19 07:41:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:06,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:07,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:07,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:07,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980827967] [2023-11-19 07:41:07,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980827967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:07,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:07,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:07,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349144522] [2023-11-19 07:41:07,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:07,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:07,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:07,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:07,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:08,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 238 [2023-11-19 07:41:08,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 66 transitions, 587 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:08,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:08,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 238 [2023-11-19 07:41:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:10,597 INFO L124 PetriNetUnfolderBase]: 12532/17863 cut-off events. [2023-11-19 07:41:10,597 INFO L125 PetriNetUnfolderBase]: For 105572/106144 co-relation queries the response was YES. [2023-11-19 07:41:10,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79508 conditions, 17863 events. 12532/17863 cut-off events. For 105572/106144 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 102078 event pairs, 2857 based on Foata normal form. 670/18492 useless extension candidates. Maximal degree in co-relation 79476. Up to 13250 conditions per place. [2023-11-19 07:41:10,781 INFO L140 encePairwiseOnDemand]: 230/238 looper letters, 120 selfloop transitions, 14 changer transitions 46/183 dead transitions. [2023-11-19 07:41:10,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 183 transitions, 1952 flow [2023-11-19 07:41:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:41:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:41:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 955 transitions. [2023-11-19 07:41:10,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5015756302521008 [2023-11-19 07:41:10,787 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 955 transitions. [2023-11-19 07:41:10,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 955 transitions. [2023-11-19 07:41:10,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:10,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 955 transitions. [2023-11-19 07:41:10,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.375) internal successors, (955), 8 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:10,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 238.0) internal successors, (2142), 9 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:10,799 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 238.0) internal successors, (2142), 9 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:10,799 INFO L175 Difference]: Start difference. First operand has 65 places, 66 transitions, 587 flow. Second operand 8 states and 955 transitions. [2023-11-19 07:41:10,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 183 transitions, 1952 flow [2023-11-19 07:41:11,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 183 transitions, 1938 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-19 07:41:11,197 INFO L231 Difference]: Finished difference. Result has 72 places, 78 transitions, 763 flow [2023-11-19 07:41:11,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=763, PETRI_PLACES=72, PETRI_TRANSITIONS=78} [2023-11-19 07:41:11,201 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2023-11-19 07:41:11,202 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 78 transitions, 763 flow [2023-11-19 07:41:11,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:11,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:11,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:11,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:41:11,203 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:41:11,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1195785904, now seen corresponding path program 2 times [2023-11-19 07:41:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:11,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981505605] [2023-11-19 07:41:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:11,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:12,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981505605] [2023-11-19 07:41:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981505605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:12,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:12,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783162123] [2023-11-19 07:41:12,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:12,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:12,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:12,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:12,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:12,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 238 [2023-11-19 07:41:12,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 78 transitions, 763 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:12,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:12,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 238 [2023-11-19 07:41:12,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:14,904 INFO L124 PetriNetUnfolderBase]: 12125/17318 cut-off events. [2023-11-19 07:41:14,904 INFO L125 PetriNetUnfolderBase]: For 133137/133659 co-relation queries the response was YES. [2023-11-19 07:41:14,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83657 conditions, 17318 events. 12125/17318 cut-off events. For 133137/133659 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 98538 event pairs, 2879 based on Foata normal form. 620/17868 useless extension candidates. Maximal degree in co-relation 83620. Up to 13023 conditions per place. [2023-11-19 07:41:15,036 INFO L140 encePairwiseOnDemand]: 232/238 looper letters, 103 selfloop transitions, 13 changer transitions 30/149 dead transitions. [2023-11-19 07:41:15,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 149 transitions, 1673 flow [2023-11-19 07:41:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-11-19 07:41:15,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5035014005602241 [2023-11-19 07:41:15,041 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-11-19 07:41:15,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-11-19 07:41:15,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:15,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-11-19 07:41:15,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:15,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:15,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:15,051 INFO L175 Difference]: Start difference. First operand has 72 places, 78 transitions, 763 flow. Second operand 6 states and 719 transitions. [2023-11-19 07:41:15,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 149 transitions, 1673 flow [2023-11-19 07:41:15,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 149 transitions, 1637 flow, removed 18 selfloop flow, removed 3 redundant places. [2023-11-19 07:41:15,668 INFO L231 Difference]: Finished difference. Result has 74 places, 81 transitions, 817 flow [2023-11-19 07:41:15,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=817, PETRI_PLACES=74, PETRI_TRANSITIONS=81} [2023-11-19 07:41:15,669 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 32 predicate places. [2023-11-19 07:41:15,669 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 81 transitions, 817 flow [2023-11-19 07:41:15,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:41:15,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:15,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:15,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:41:15,671 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-19 07:41:15,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1009312159, now seen corresponding path program 1 times [2023-11-19 07:41:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7933211] [2023-11-19 07:41:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:16,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:16,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7933211] [2023-11-19 07:41:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7933211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:16,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:16,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:16,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404758680] [2023-11-19 07:41:16,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:16,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:41:16,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:16,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:41:16,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42