./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:06:36,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:06:36,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:06:36,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:06:36,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:06:36,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:06:36,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:06:36,255 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:06:36,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:06:36,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:06:36,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:06:36,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:06:36,263 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:06:36,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:06:36,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:06:36,266 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:06:36,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:06:36,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:06:36,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:06:36,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:06:36,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:06:36,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:06:36,270 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:06:36,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:06:36,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:06:36,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:06:36,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:06:36,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:06:36,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:36,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:06:36,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:06:36,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:06:36,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:06:36,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:06:36,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:06:36,283 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:06:36,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:06:36,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:06:36,284 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:06:36,284 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_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2023-11-12 02:06:36,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:06:36,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:06:36,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:06:36,666 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:06:36,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:06:36,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2023-11-12 02:06:39,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:06:40,201 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:06:40,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2023-11-12 02:06:40,226 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/data/31b53854e/0f7b3298ecf344c5b59db4c60da4554d/FLAG61e80fd3f [2023-11-12 02:06:40,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/data/31b53854e/0f7b3298ecf344c5b59db4c60da4554d [2023-11-12 02:06:40,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:06:40,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:06:40,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:40,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:06:40,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:06:40,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aafdaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40, skipping insertion in model container [2023-11-12 02:06:40,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:40,335 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:06:40,532 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_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2023-11-12 02:06:40,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:40,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:06:40,846 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_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2023-11-12 02:06:40,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:06:40,962 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:40,962 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:06:40,968 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:06:40,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40 WrapperNode [2023-11-12 02:06:40,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:06:40,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:40,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:06:40,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:06:40,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,062 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 169 [2023-11-12 02:06:41,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:06:41,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:06:41,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:06:41,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:06:41,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:06:41,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:06:41,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:06:41,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:06:41,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (1/1) ... [2023-11-12 02:06:41,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:06:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:06:41,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:06:41,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:06:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:06:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:06:41,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:06:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:06:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:06:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:06:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:06:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:06:41,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:06:41,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:06:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:06:41,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:06:41,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:06:41,208 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:06:41,357 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:06:41,359 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:06:41,921 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:06:42,112 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:06:42,113 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:06:42,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:06:42 BoogieIcfgContainer [2023-11-12 02:06:42,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:06:42,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:06:42,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:06:42,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:06:42,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:06:40" (1/3) ... [2023-11-12 02:06:42,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28adeb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:06:42, skipping insertion in model container [2023-11-12 02:06:42,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:06:40" (2/3) ... [2023-11-12 02:06:42,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28adeb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:06:42, skipping insertion in model container [2023-11-12 02:06:42,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:06:42" (3/3) ... [2023-11-12 02:06:42,130 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2023-11-12 02:06:42,139 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:06:42,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:06:42,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:06:42,153 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:06:42,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:06:42,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 194 flow [2023-11-12 02:06:42,326 INFO L124 PetriNetUnfolderBase]: 2/91 cut-off events. [2023-11-12 02:06:42,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:06:42,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-12 02:06:42,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 93 transitions, 194 flow [2023-11-12 02:06:42,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 91 transitions, 188 flow [2023-11-12 02:06:42,343 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:06:42,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 91 transitions, 188 flow [2023-11-12 02:06:42,356 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 91 transitions, 188 flow [2023-11-12 02:06:42,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 91 transitions, 188 flow [2023-11-12 02:06:42,395 INFO L124 PetriNetUnfolderBase]: 2/91 cut-off events. [2023-11-12 02:06:42,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:06:42,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-11-12 02:06:42,399 INFO L119 LiptonReduction]: Number of co-enabled transitions 1292 [2023-11-12 02:06:46,215 INFO L134 LiptonReduction]: Checked pairs total: 3826 [2023-11-12 02:06:46,216 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-11-12 02:06:46,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:06:46,256 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;@27637fcd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:06:46,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-12 02:06:46,265 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:06:46,265 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-11-12 02:06:46,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:06:46,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:46,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:06:46,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:46,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1564260792, now seen corresponding path program 1 times [2023-11-12 02:06:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:46,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327303269] [2023-11-12 02:06:46,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:46,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327303269] [2023-11-12 02:06:46,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327303269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:46,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:46,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:06:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18394871] [2023-11-12 02:06:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:46,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:06:46,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:46,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:06:46,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:06:46,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 174 [2023-11-12 02:06:46,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-12 02:06:46,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:46,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 174 [2023-11-12 02:06:46,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:47,132 INFO L124 PetriNetUnfolderBase]: 294/501 cut-off events. [2023-11-12 02:06:47,133 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:06:47,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 501 events. 294/501 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2028 event pairs, 69 based on Foata normal form. 28/472 useless extension candidates. Maximal degree in co-relation 1004. Up to 366 conditions per place. [2023-11-12 02:06:47,142 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 22 selfloop transitions, 2 changer transitions 4/29 dead transitions. [2023-11-12 02:06:47,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 120 flow [2023-11-12 02:06:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:06:47,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:06:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-11-12 02:06:47,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5134099616858238 [2023-11-12 02:06:47,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-11-12 02:06:47,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-11-12 02:06:47,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:47,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-11-12 02:06:47,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-12 02:06:47,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-12 02:06:47,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2023-11-12 02:06:47,191 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 268 transitions. [2023-11-12 02:06:47,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 120 flow [2023-11-12 02:06:47,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:06:47,197 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 44 flow [2023-11-12 02:06:47,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-11-12 02:06:47,205 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2023-11-12 02:06:47,205 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 44 flow [2023-11-12 02:06:47,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2023-11-12 02:06:47,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:47,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:47,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:06:47,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:47,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:47,219 INFO L85 PathProgramCache]: Analyzing trace with hash 17790224, now seen corresponding path program 1 times [2023-11-12 02:06:47,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:47,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397544828] [2023-11-12 02:06:47,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:47,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397544828] [2023-11-12 02:06:48,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397544828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:48,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:06:48,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448871668] [2023-11-12 02:06:48,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:48,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:06:48,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:48,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:06:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:06:48,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2023-11-12 02:06:48,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2023-11-12 02:06:48,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:48,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2023-11-12 02:06:48,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:48,960 INFO L124 PetriNetUnfolderBase]: 282/497 cut-off events. [2023-11-12 02:06:48,961 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-12 02:06:48,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 497 events. 282/497 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1890 event pairs, 90 based on Foata normal form. 39/536 useless extension candidates. Maximal degree in co-relation 1020. Up to 265 conditions per place. [2023-11-12 02:06:48,966 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 24 selfloop transitions, 7 changer transitions 20/51 dead transitions. [2023-11-12 02:06:48,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 51 transitions, 214 flow [2023-11-12 02:06:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:06:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:06:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 530 transitions. [2023-11-12 02:06:48,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4351395730706076 [2023-11-12 02:06:48,970 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 530 transitions. [2023-11-12 02:06:48,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 530 transitions. [2023-11-12 02:06:48,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:48,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 530 transitions. [2023-11-12 02:06:48,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 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) [2023-11-12 02:06:48,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:48,978 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:48,979 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 44 flow. Second operand 7 states and 530 transitions. [2023-11-12 02:06:48,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 51 transitions, 214 flow [2023-11-12 02:06:48,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 51 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:06:48,981 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 106 flow [2023-11-12 02:06:48,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2023-11-12 02:06:48,982 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2023-11-12 02:06:48,983 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 106 flow [2023-11-12 02:06:48,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2023-11-12 02:06:48,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:48,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:48,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:06:48,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:48,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:48,985 INFO L85 PathProgramCache]: Analyzing trace with hash 276545479, now seen corresponding path program 1 times [2023-11-12 02:06:48,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:48,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271663056] [2023-11-12 02:06:48,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:48,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:49,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271663056] [2023-11-12 02:06:49,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271663056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:49,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:49,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:06:49,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547311796] [2023-11-12 02:06:49,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:49,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:06:49,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:49,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:06:49,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:06:49,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 174 [2023-11-12 02:06:49,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2023-11-12 02:06:49,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:49,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 174 [2023-11-12 02:06:49,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:49,458 INFO L124 PetriNetUnfolderBase]: 208/380 cut-off events. [2023-11-12 02:06:49,458 INFO L125 PetriNetUnfolderBase]: For 340/350 co-relation queries the response was YES. [2023-11-12 02:06:49,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 380 events. 208/380 cut-off events. For 340/350 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1437 event pairs, 85 based on Foata normal form. 30/406 useless extension candidates. Maximal degree in co-relation 1166. Up to 197 conditions per place. [2023-11-12 02:06:49,463 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 25 selfloop transitions, 3 changer transitions 14/44 dead transitions. [2023-11-12 02:06:49,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 282 flow [2023-11-12 02:06:49,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:06:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:06:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2023-11-12 02:06:49,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48160919540229885 [2023-11-12 02:06:49,466 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 419 transitions. [2023-11-12 02:06:49,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 419 transitions. [2023-11-12 02:06:49,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:49,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 419 transitions. [2023-11-12 02:06:49,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2023-11-12 02:06:49,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2023-11-12 02:06:49,472 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2023-11-12 02:06:49,472 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 106 flow. Second operand 5 states and 419 transitions. [2023-11-12 02:06:49,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 282 flow [2023-11-12 02:06:49,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 44 transitions, 276 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-12 02:06:49,477 INFO L231 Difference]: Finished difference. Result has 37 places, 23 transitions, 115 flow [2023-11-12 02:06:49,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=37, PETRI_TRANSITIONS=23} [2023-11-12 02:06:49,479 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2023-11-12 02:06:49,479 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 23 transitions, 115 flow [2023-11-12 02:06:49,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2023-11-12 02:06:49,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:49,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:49,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:06:49,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:49,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash -17059080, now seen corresponding path program 1 times [2023-11-12 02:06:49,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:49,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381769373] [2023-11-12 02:06:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:50,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:50,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381769373] [2023-11-12 02:06:50,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381769373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:50,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:50,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:06:50,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598474483] [2023-11-12 02:06:50,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:50,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:06:50,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:50,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:06:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:06:50,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 174 [2023-11-12 02:06:50,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 23 transitions, 115 flow. Second operand has 8 states, 8 states have (on average 73.5) internal successors, (588), 8 states have internal predecessors, (588), 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) [2023-11-12 02:06:50,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:50,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 174 [2023-11-12 02:06:50,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:50,723 INFO L124 PetriNetUnfolderBase]: 201/373 cut-off events. [2023-11-12 02:06:50,723 INFO L125 PetriNetUnfolderBase]: For 379/386 co-relation queries the response was YES. [2023-11-12 02:06:50,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 373 events. 201/373 cut-off events. For 379/386 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1392 event pairs, 91 based on Foata normal form. 21/391 useless extension candidates. Maximal degree in co-relation 1187. Up to 312 conditions per place. [2023-11-12 02:06:50,728 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 28 selfloop transitions, 12 changer transitions 8/50 dead transitions. [2023-11-12 02:06:50,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 50 transitions, 311 flow [2023-11-12 02:06:50,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:06:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:06:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 547 transitions. [2023-11-12 02:06:50,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490968801313629 [2023-11-12 02:06:50,732 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 547 transitions. [2023-11-12 02:06:50,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 547 transitions. [2023-11-12 02:06:50,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:50,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 547 transitions. [2023-11-12 02:06:50,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.14285714285714) internal successors, (547), 7 states have internal predecessors, (547), 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) [2023-11-12 02:06:50,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:50,739 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:50,740 INFO L175 Difference]: Start difference. First operand has 37 places, 23 transitions, 115 flow. Second operand 7 states and 547 transitions. [2023-11-12 02:06:50,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 50 transitions, 311 flow [2023-11-12 02:06:50,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 290 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-12 02:06:50,745 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 199 flow [2023-11-12 02:06:50,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=199, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2023-11-12 02:06:50,746 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2023-11-12 02:06:50,747 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 199 flow [2023-11-12 02:06:50,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.5) internal successors, (588), 8 states have internal predecessors, (588), 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) [2023-11-12 02:06:50,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:50,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:50,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:06:50,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:50,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash -54855210, now seen corresponding path program 2 times [2023-11-12 02:06:50,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:50,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809309298] [2023-11-12 02:06:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:50,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:51,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:51,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809309298] [2023-11-12 02:06:51,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809309298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:51,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:51,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:06:51,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166486018] [2023-11-12 02:06:51,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:51,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:06:51,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:51,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:06:51,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:06:51,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2023-11-12 02:06:51,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 199 flow. Second operand has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 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) [2023-11-12 02:06:51,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:51,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2023-11-12 02:06:51,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:52,201 INFO L124 PetriNetUnfolderBase]: 182/341 cut-off events. [2023-11-12 02:06:52,201 INFO L125 PetriNetUnfolderBase]: For 382/389 co-relation queries the response was YES. [2023-11-12 02:06:52,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 341 events. 182/341 cut-off events. For 382/389 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1255 event pairs, 112 based on Foata normal form. 24/362 useless extension candidates. Maximal degree in co-relation 1182. Up to 288 conditions per place. [2023-11-12 02:06:52,205 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 27 selfloop transitions, 13 changer transitions 10/52 dead transitions. [2023-11-12 02:06:52,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 377 flow [2023-11-12 02:06:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:06:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:06:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 596 transitions. [2023-11-12 02:06:52,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4281609195402299 [2023-11-12 02:06:52,209 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 596 transitions. [2023-11-12 02:06:52,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 596 transitions. [2023-11-12 02:06:52,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:52,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 596 transitions. [2023-11-12 02:06:52,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2023-11-12 02:06:52,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 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) [2023-11-12 02:06:52,215 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 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) [2023-11-12 02:06:52,216 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 199 flow. Second operand 8 states and 596 transitions. [2023-11-12 02:06:52,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 377 flow [2023-11-12 02:06:52,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 363 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-11-12 02:06:52,220 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 258 flow [2023-11-12 02:06:52,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=258, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2023-11-12 02:06:52,221 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 23 predicate places. [2023-11-12 02:06:52,222 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 258 flow [2023-11-12 02:06:52,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 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) [2023-11-12 02:06:52,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:52,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:52,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:06:52,223 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:52,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:52,224 INFO L85 PathProgramCache]: Analyzing trace with hash 449732145, now seen corresponding path program 1 times [2023-11-12 02:06:52,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:52,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410414870] [2023-11-12 02:06:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:52,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:52,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:52,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410414870] [2023-11-12 02:06:52,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410414870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:52,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:52,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:06:52,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747687148] [2023-11-12 02:06:52,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:52,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:06:52,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:52,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:06:52,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:06:53,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2023-11-12 02:06:53,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-11-12 02:06:53,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:53,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2023-11-12 02:06:53,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:53,292 INFO L124 PetriNetUnfolderBase]: 158/293 cut-off events. [2023-11-12 02:06:53,292 INFO L125 PetriNetUnfolderBase]: For 570/576 co-relation queries the response was YES. [2023-11-12 02:06:53,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 293 events. 158/293 cut-off events. For 570/576 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1000 event pairs, 56 based on Foata normal form. 10/300 useless extension candidates. Maximal degree in co-relation 1202. Up to 259 conditions per place. [2023-11-12 02:06:53,297 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-11-12 02:06:53,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 374 flow [2023-11-12 02:06:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:06:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:06:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2023-11-12 02:06:53,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44396551724137934 [2023-11-12 02:06:53,300 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions. [2023-11-12 02:06:53,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions. [2023-11-12 02:06:53,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:53,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions. [2023-11-12 02:06:53,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2023-11-12 02:06:53,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:06:53,304 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:06:53,304 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 258 flow. Second operand 4 states and 309 transitions. [2023-11-12 02:06:53,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 374 flow [2023-11-12 02:06:53,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 348 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-11-12 02:06:53,310 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 257 flow [2023-11-12 02:06:53,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2023-11-12 02:06:53,311 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 21 predicate places. [2023-11-12 02:06:53,311 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 257 flow [2023-11-12 02:06:53,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 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) [2023-11-12 02:06:53,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:53,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:53,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:06:53,313 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:53,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:53,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1281478081, now seen corresponding path program 2 times [2023-11-12 02:06:53,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:53,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894820582] [2023-11-12 02:06:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:54,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:54,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894820582] [2023-11-12 02:06:54,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894820582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:54,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:54,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:06:54,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91052039] [2023-11-12 02:06:54,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:54,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:06:54,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:54,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:06:54,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:06:54,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2023-11-12 02:06:54,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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) [2023-11-12 02:06:54,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:54,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2023-11-12 02:06:54,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:54,397 INFO L124 PetriNetUnfolderBase]: 63/149 cut-off events. [2023-11-12 02:06:54,397 INFO L125 PetriNetUnfolderBase]: For 297/300 co-relation queries the response was YES. [2023-11-12 02:06:54,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 149 events. 63/149 cut-off events. For 297/300 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 446 event pairs, 14 based on Foata normal form. 17/165 useless extension candidates. Maximal degree in co-relation 590. Up to 94 conditions per place. [2023-11-12 02:06:54,400 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 39 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2023-11-12 02:06:54,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 48 transitions, 378 flow [2023-11-12 02:06:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:06:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:06:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 381 transitions. [2023-11-12 02:06:54,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4379310344827586 [2023-11-12 02:06:54,403 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 381 transitions. [2023-11-12 02:06:54,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 381 transitions. [2023-11-12 02:06:54,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:54,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 381 transitions. [2023-11-12 02:06:54,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2023-11-12 02:06:54,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2023-11-12 02:06:54,408 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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) [2023-11-12 02:06:54,408 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 257 flow. Second operand 5 states and 381 transitions. [2023-11-12 02:06:54,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 48 transitions, 378 flow [2023-11-12 02:06:54,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 48 transitions, 347 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-12 02:06:54,412 INFO L231 Difference]: Finished difference. Result has 47 places, 35 transitions, 218 flow [2023-11-12 02:06:54,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=35} [2023-11-12 02:06:54,413 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 19 predicate places. [2023-11-12 02:06:54,413 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 35 transitions, 218 flow [2023-11-12 02:06:54,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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) [2023-11-12 02:06:54,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:54,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:54,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:06:54,415 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:54,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:54,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1747746326, now seen corresponding path program 1 times [2023-11-12 02:06:54,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:54,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576095789] [2023-11-12 02:06:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:55,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:55,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576095789] [2023-11-12 02:06:55,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576095789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:55,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:55,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:06:55,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804199818] [2023-11-12 02:06:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:55,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:06:55,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:06:55,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:06:55,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2023-11-12 02:06:55,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 218 flow. Second operand has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 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) [2023-11-12 02:06:55,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:55,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2023-11-12 02:06:55,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:55,677 INFO L124 PetriNetUnfolderBase]: 61/150 cut-off events. [2023-11-12 02:06:55,677 INFO L125 PetriNetUnfolderBase]: For 263/266 co-relation queries the response was YES. [2023-11-12 02:06:55,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 150 events. 61/150 cut-off events. For 263/266 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 23 based on Foata normal form. 7/156 useless extension candidates. Maximal degree in co-relation 614. Up to 125 conditions per place. [2023-11-12 02:06:55,679 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 31 selfloop transitions, 8 changer transitions 4/45 dead transitions. [2023-11-12 02:06:55,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 45 transitions, 357 flow [2023-11-12 02:06:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:06:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:06:55,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 532 transitions. [2023-11-12 02:06:55,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367816091954023 [2023-11-12 02:06:55,686 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 532 transitions. [2023-11-12 02:06:55,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 532 transitions. [2023-11-12 02:06:55,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:55,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 532 transitions. [2023-11-12 02:06:55,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 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) [2023-11-12 02:06:55,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:55,694 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 174.0) internal successors, (1392), 8 states have internal predecessors, (1392), 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) [2023-11-12 02:06:55,694 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 218 flow. Second operand 7 states and 532 transitions. [2023-11-12 02:06:55,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 45 transitions, 357 flow [2023-11-12 02:06:55,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 337 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-12 02:06:55,698 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 227 flow [2023-11-12 02:06:55,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=227, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2023-11-12 02:06:55,702 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 24 predicate places. [2023-11-12 02:06:55,702 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 227 flow [2023-11-12 02:06:55,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 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) [2023-11-12 02:06:55,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:55,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:55,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:06:55,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:55,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 162022115, now seen corresponding path program 1 times [2023-11-12 02:06:55,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:55,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416687085] [2023-11-12 02:06:55,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:55,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:56,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:56,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416687085] [2023-11-12 02:06:56,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416687085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:56,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:56,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:06:56,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319486533] [2023-11-12 02:06:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:06:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:06:56,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:06:56,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2023-11-12 02:06:56,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 227 flow. Second operand has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 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) [2023-11-12 02:06:56,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:56,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2023-11-12 02:06:56,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:57,080 INFO L124 PetriNetUnfolderBase]: 91/216 cut-off events. [2023-11-12 02:06:57,080 INFO L125 PetriNetUnfolderBase]: For 406/410 co-relation queries the response was YES. [2023-11-12 02:06:57,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 936 conditions, 216 events. 91/216 cut-off events. For 406/410 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 830 event pairs, 16 based on Foata normal form. 9/223 useless extension candidates. Maximal degree in co-relation 909. Up to 97 conditions per place. [2023-11-12 02:06:57,083 INFO L140 encePairwiseOnDemand]: 164/174 looper letters, 35 selfloop transitions, 22 changer transitions 13/72 dead transitions. [2023-11-12 02:06:57,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 72 transitions, 599 flow [2023-11-12 02:06:57,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:06:57,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:06:57,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 619 transitions. [2023-11-12 02:06:57,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.444683908045977 [2023-11-12 02:06:57,087 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 619 transitions. [2023-11-12 02:06:57,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 619 transitions. [2023-11-12 02:06:57,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:57,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 619 transitions. [2023-11-12 02:06:57,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.375) internal successors, (619), 8 states have internal predecessors, (619), 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) [2023-11-12 02:06:57,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 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) [2023-11-12 02:06:57,095 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 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) [2023-11-12 02:06:57,095 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 227 flow. Second operand 8 states and 619 transitions. [2023-11-12 02:06:57,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 72 transitions, 599 flow [2023-11-12 02:06:57,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 72 transitions, 583 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-11-12 02:06:57,102 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 396 flow [2023-11-12 02:06:57,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=396, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2023-11-12 02:06:57,103 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 29 predicate places. [2023-11-12 02:06:57,104 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 396 flow [2023-11-12 02:06:57,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.875) internal successors, (583), 8 states have internal predecessors, (583), 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) [2023-11-12 02:06:57,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:57,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:57,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:06:57,105 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:57,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1619527793, now seen corresponding path program 2 times [2023-11-12 02:06:57,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:57,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466249900] [2023-11-12 02:06:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:57,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:57,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:57,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466249900] [2023-11-12 02:06:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466249900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:57,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:57,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:06:57,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734222357] [2023-11-12 02:06:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:57,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:06:57,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:57,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:06:57,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:06:57,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 174 [2023-11-12 02:06:57,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2023-11-12 02:06:57,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:57,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 174 [2023-11-12 02:06:57,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:57,447 INFO L124 PetriNetUnfolderBase]: 33/94 cut-off events. [2023-11-12 02:06:57,448 INFO L125 PetriNetUnfolderBase]: For 278/279 co-relation queries the response was YES. [2023-11-12 02:06:57,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 94 events. 33/94 cut-off events. For 278/279 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 271 event pairs, 6 based on Foata normal form. 14/106 useless extension candidates. Maximal degree in co-relation 443. Up to 54 conditions per place. [2023-11-12 02:06:57,449 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 39 selfloop transitions, 5 changer transitions 8/54 dead transitions. [2023-11-12 02:06:57,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 539 flow [2023-11-12 02:06:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:06:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:06:57,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 337 transitions. [2023-11-12 02:06:57,452 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48419540229885055 [2023-11-12 02:06:57,452 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 337 transitions. [2023-11-12 02:06:57,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 337 transitions. [2023-11-12 02:06:57,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:57,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 337 transitions. [2023-11-12 02:06:57,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 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) [2023-11-12 02:06:57,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:06:57,457 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:06:57,457 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 396 flow. Second operand 4 states and 337 transitions. [2023-11-12 02:06:57,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 539 flow [2023-11-12 02:06:57,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 54 transitions, 451 flow, removed 29 selfloop flow, removed 7 redundant places. [2023-11-12 02:06:57,463 INFO L231 Difference]: Finished difference. Result has 53 places, 40 transitions, 276 flow [2023-11-12 02:06:57,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2023-11-12 02:06:57,465 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 25 predicate places. [2023-11-12 02:06:57,466 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 276 flow [2023-11-12 02:06:57,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2023-11-12 02:06:57,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:57,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:57,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:06:57,467 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:57,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -311312307, now seen corresponding path program 1 times [2023-11-12 02:06:57,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:57,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359207010] [2023-11-12 02:06:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:57,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:06:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:06:58,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:06:58,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359207010] [2023-11-12 02:06:58,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359207010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:06:58,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:06:58,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:06:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111784371] [2023-11-12 02:06:58,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:06:58,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:06:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:06:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:06:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:06:58,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2023-11-12 02:06:58,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 276 flow. Second operand has 10 states, 10 states have (on average 72.7) internal successors, (727), 10 states have internal predecessors, (727), 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) [2023-11-12 02:06:58,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:06:58,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2023-11-12 02:06:58,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:06:59,168 INFO L124 PetriNetUnfolderBase]: 26/84 cut-off events. [2023-11-12 02:06:59,169 INFO L125 PetriNetUnfolderBase]: For 171/172 co-relation queries the response was YES. [2023-11-12 02:06:59,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 84 events. 26/84 cut-off events. For 171/172 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 217 event pairs, 4 based on Foata normal form. 2/85 useless extension candidates. Maximal degree in co-relation 358. Up to 37 conditions per place. [2023-11-12 02:06:59,170 INFO L140 encePairwiseOnDemand]: 165/174 looper letters, 21 selfloop transitions, 16 changer transitions 13/52 dead transitions. [2023-11-12 02:06:59,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 457 flow [2023-11-12 02:06:59,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:06:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:06:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 676 transitions. [2023-11-12 02:06:59,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43167305236270753 [2023-11-12 02:06:59,175 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 676 transitions. [2023-11-12 02:06:59,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 676 transitions. [2023-11-12 02:06:59,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:06:59,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 676 transitions. [2023-11-12 02:06:59,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.11111111111111) internal successors, (676), 9 states have internal predecessors, (676), 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) [2023-11-12 02:06:59,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 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) [2023-11-12 02:06:59,183 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 174.0) internal successors, (1740), 10 states have internal predecessors, (1740), 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) [2023-11-12 02:06:59,183 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 276 flow. Second operand 9 states and 676 transitions. [2023-11-12 02:06:59,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 457 flow [2023-11-12 02:06:59,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 416 flow, removed 11 selfloop flow, removed 5 redundant places. [2023-11-12 02:06:59,188 INFO L231 Difference]: Finished difference. Result has 60 places, 38 transitions, 290 flow [2023-11-12 02:06:59,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=290, PETRI_PLACES=60, PETRI_TRANSITIONS=38} [2023-11-12 02:06:59,189 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 32 predicate places. [2023-11-12 02:06:59,189 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 38 transitions, 290 flow [2023-11-12 02:06:59,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.7) internal successors, (727), 10 states have internal predecessors, (727), 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) [2023-11-12 02:06:59,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:06:59,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:06:59,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:06:59,190 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:06:59,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:06:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2098668655, now seen corresponding path program 2 times [2023-11-12 02:06:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:06:59,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646663663] [2023-11-12 02:06:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:06:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:06:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:00,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:00,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646663663] [2023-11-12 02:07:00,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646663663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:00,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:00,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:07:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832261856] [2023-11-12 02:07:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:00,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:07:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:00,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:07:00,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:07:00,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 174 [2023-11-12 02:07:00,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 38 transitions, 290 flow. Second operand has 11 states, 11 states have (on average 73.54545454545455) internal successors, (809), 11 states have internal predecessors, (809), 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) [2023-11-12 02:07:00,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:00,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 174 [2023-11-12 02:07:00,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:01,273 INFO L124 PetriNetUnfolderBase]: 28/94 cut-off events. [2023-11-12 02:07:01,274 INFO L125 PetriNetUnfolderBase]: For 221/222 co-relation queries the response was YES. [2023-11-12 02:07:01,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 94 events. 28/94 cut-off events. For 221/222 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 276 event pairs, 2 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 432. Up to 46 conditions per place. [2023-11-12 02:07:01,275 INFO L140 encePairwiseOnDemand]: 166/174 looper letters, 28 selfloop transitions, 6 changer transitions 23/59 dead transitions. [2023-11-12 02:07:01,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 59 transitions, 556 flow [2023-11-12 02:07:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:07:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-12 02:07:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 759 transitions. [2023-11-12 02:07:01,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4362068965517241 [2023-11-12 02:07:01,282 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 759 transitions. [2023-11-12 02:07:01,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 759 transitions. [2023-11-12 02:07:01,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:01,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 759 transitions. [2023-11-12 02:07:01,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.9) internal successors, (759), 10 states have internal predecessors, (759), 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) [2023-11-12 02:07:01,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 174.0) internal successors, (1914), 11 states have internal predecessors, (1914), 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) [2023-11-12 02:07:01,290 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 174.0) internal successors, (1914), 11 states have internal predecessors, (1914), 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) [2023-11-12 02:07:01,291 INFO L175 Difference]: Start difference. First operand has 60 places, 38 transitions, 290 flow. Second operand 10 states and 759 transitions. [2023-11-12 02:07:01,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 59 transitions, 556 flow [2023-11-12 02:07:01,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 473 flow, removed 7 selfloop flow, removed 12 redundant places. [2023-11-12 02:07:01,295 INFO L231 Difference]: Finished difference. Result has 60 places, 36 transitions, 250 flow [2023-11-12 02:07:01,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=250, PETRI_PLACES=60, PETRI_TRANSITIONS=36} [2023-11-12 02:07:01,297 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 32 predicate places. [2023-11-12 02:07:01,297 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 36 transitions, 250 flow [2023-11-12 02:07:01,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 73.54545454545455) internal successors, (809), 11 states have internal predecessors, (809), 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) [2023-11-12 02:07:01,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:01,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:01,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:07:01,298 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-12 02:07:01,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1107633799, now seen corresponding path program 3 times [2023-11-12 02:07:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:01,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34277026] [2023-11-12 02:07:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:01,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34277026] [2023-11-12 02:07:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34277026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:07:01,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444830428] [2023-11-12 02:07:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:01,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:07:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:01,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:07:01,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:07:01,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 174 [2023-11-12 02:07:01,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 36 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2023-11-12 02:07:01,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:01,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 174 [2023-11-12 02:07:01,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:01,597 INFO L124 PetriNetUnfolderBase]: 19/59 cut-off events. [2023-11-12 02:07:01,597 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-11-12 02:07:01,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 59 events. 19/59 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 134 event pairs, 0 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 271. Up to 38 conditions per place. [2023-11-12 02:07:01,598 INFO L140 encePairwiseOnDemand]: 171/174 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2023-11-12 02:07:01,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 40 transitions, 370 flow [2023-11-12 02:07:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:07:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:07:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-11-12 02:07:01,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46264367816091956 [2023-11-12 02:07:01,600 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-11-12 02:07:01,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-11-12 02:07:01,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:01,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-11-12 02:07:01,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2023-11-12 02:07:01,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:07:01,605 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2023-11-12 02:07:01,605 INFO L175 Difference]: Start difference. First operand has 60 places, 36 transitions, 250 flow. Second operand 4 states and 322 transitions. [2023-11-12 02:07:01,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 40 transitions, 370 flow [2023-11-12 02:07:01,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 326 flow, removed 11 selfloop flow, removed 11 redundant places. [2023-11-12 02:07:01,608 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-12 02:07:01,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-12 02:07:01,610 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 17 predicate places. [2023-11-12 02:07:01,610 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-12 02:07:01,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2023-11-12 02:07:01,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-12 02:07:01,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-12 02:07:01,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-12 02:07:01,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-12 02:07:01,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-12 02:07:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:07:01,615 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1] [2023-11-12 02:07:01,620 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:07:01,621 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:07:01,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:07:01 BasicIcfg [2023-11-12 02:07:01,626 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:07:01,627 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:07:01,627 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:07:01,627 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:07:01,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:06:42" (3/4) ... [2023-11-12 02:07:01,629 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:07:01,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:07:01,632 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:07:01,640 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-12 02:07:01,640 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 02:07:01,641 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:07:01,641 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:07:01,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:07:01,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:07:01,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:07:01,739 INFO L158 Benchmark]: Toolchain (without parser) took 21487.10ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 106.8MB in the beginning and 188.1MB in the end (delta: -81.3MB). Peak memory consumption was 90.1MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,739 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:07:01,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.77ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 81.6MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.97ms. Allocated memory is still 153.1MB. Free memory was 81.1MB in the beginning and 77.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,741 INFO L158 Benchmark]: Boogie Preprocessor took 43.97ms. Allocated memory is still 153.1MB. Free memory was 77.9MB in the beginning and 75.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,741 INFO L158 Benchmark]: RCFGBuilder took 1008.74ms. Allocated memory is still 153.1MB. Free memory was 75.9MB in the beginning and 86.2MB in the end (delta: -10.3MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,741 INFO L158 Benchmark]: TraceAbstraction took 19505.73ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 85.7MB in the beginning and 192.3MB in the end (delta: -106.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,742 INFO L158 Benchmark]: Witness Printer took 111.69ms. Allocated memory is still 323.0MB. Free memory was 192.3MB in the beginning and 188.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:07:01,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 713.77ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 81.6MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.97ms. Allocated memory is still 153.1MB. Free memory was 81.1MB in the beginning and 77.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.97ms. Allocated memory is still 153.1MB. Free memory was 77.9MB in the beginning and 75.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1008.74ms. Allocated memory is still 153.1MB. Free memory was 75.9MB in the beginning and 86.2MB in the end (delta: -10.3MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19505.73ms. Allocated memory was 153.1MB in the beginning and 323.0MB in the end (delta: 169.9MB). Free memory was 85.7MB in the beginning and 192.3MB in the end (delta: -106.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Witness Printer took 111.69ms. Allocated memory is still 323.0MB. Free memory was 192.3MB in the beginning and 188.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 96 PlacesBefore, 28 PlacesAfterwards, 91 TransitionsBefore, 22 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 3826 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1491, independent: 1332, independent conditional: 0, independent unconditional: 1332, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 686, independent: 659, independent conditional: 0, independent unconditional: 659, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1491, independent: 673, independent conditional: 0, independent unconditional: 673, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 686, unknown conditional: 0, unknown unconditional: 686] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 113 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 554 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 395 mSDsluCounter, 672 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 574 mSDsCounter, 150 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1889 IncrementalHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 150 mSolverCounterUnsat, 98 mSDtfsCounter, 1889 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=9, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 1934 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:07:01,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2fe6ae7-0ae0-4d8d-a56b-afac83ff51f5/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE