./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:27:39,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:27:39,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:27:39,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:27:39,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:27:39,448 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:27:39,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:27:39,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:27:39,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:27:39,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:27:39,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:27:39,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:27:39,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:27:39,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:27:39,453 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:27:39,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:27:39,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:27:39,455 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:27:39,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:27:39,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:27:39,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:27:39,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:27:39,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:27:39,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:27:39,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:27:39,459 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:27:39,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:27:39,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:27:39,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:27:39,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:27:39,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:27:39,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:27:39,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:27:39,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:27:39,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:27:39,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:27:39,468 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:27:39,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:27:39,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:27:39,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:27:39,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:27:39,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:27:39,474 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_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-08 16:27:39,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:27:39,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:27:39,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:27:39,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:27:39,783 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:27:39,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i Unable to find full path for "g++" [2024-11-08 16:27:41,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:27:42,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:27:42,280 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 16:27:42,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/data/156fa3f7b/d221fa5947fb46f4bb140a9b3d69dfa3/FLAG22f8b7731 [2024-11-08 16:27:42,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/data/156fa3f7b/d221fa5947fb46f4bb140a9b3d69dfa3 [2024-11-08 16:27:42,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:27:42,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:27:42,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:27:42,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:27:42,333 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:27:42,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:42,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9ef34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42, skipping insertion in model container [2024-11-08 16:27:42,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:42,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:27:42,659 WARN L250 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_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2024-11-08 16:27:42,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:27:42,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:27:42,905 WARN L250 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_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2024-11-08 16:27:42,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:27:42,998 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:27:42,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42 WrapperNode [2024-11-08 16:27:42,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:27:43,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:27:43,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:27:43,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:27:43,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,045 INFO L138 Inliner]: procedures = 165, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 116 [2024-11-08 16:27:43,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:27:43,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:27:43,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:27:43,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:27:43,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,083 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-08 16:27:43,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:27:43,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:27:43,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:27:43,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:27:43,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (1/1) ... [2024-11-08 16:27:43,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:27:43,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:27:43,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:27:43,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:27:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:27:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:27:43,167 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-08 16:27:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-08 16:27:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:27:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:27:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:27:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:27:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:27:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:27:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:27:43,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:27:43,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:27:43,171 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:27:43,351 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:27:43,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:27:43,659 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:27:43,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:27:43,934 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:27:43,934 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:27:43,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:27:43 BoogieIcfgContainer [2024-11-08 16:27:43,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:27:43,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:27:43,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:27:43,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:27:43,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:27:42" (1/3) ... [2024-11-08 16:27:43,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7550402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:27:43, skipping insertion in model container [2024-11-08 16:27:43,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:27:42" (2/3) ... [2024-11-08 16:27:43,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7550402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:27:43, skipping insertion in model container [2024-11-08 16:27:43,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:27:43" (3/3) ... [2024-11-08 16:27:43,951 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 16:27:43,973 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:27:43,973 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:27:43,973 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:27:44,044 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:27:44,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 40 transitions, 84 flow [2024-11-08 16:27:44,137 INFO L124 PetriNetUnfolderBase]: 8/39 cut-off events. [2024-11-08 16:27:44,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:27:44,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 39 events. 8/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-08 16:27:44,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 40 transitions, 84 flow [2024-11-08 16:27:44,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 39 transitions, 81 flow [2024-11-08 16:27:44,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:27:44,183 INFO L333 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, 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;@7f1c7045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:27:44,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-08 16:27:44,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:27:44,204 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-08 16:27:44,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:27:44,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:44,206 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:44,206 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:44,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1555706838, now seen corresponding path program 1 times [2024-11-08 16:27:44,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518683242] [2024-11-08 16:27:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:44,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:44,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518683242] [2024-11-08 16:27:44,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518683242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:44,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:44,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:27:44,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897481468] [2024-11-08 16:27:44,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:44,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:27:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:44,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:27:44,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:27:44,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-11-08 16:27:44,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 39 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:44,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:44,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-11-08 16:27:44,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:44,710 INFO L124 PetriNetUnfolderBase]: 106/249 cut-off events. [2024-11-08 16:27:44,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:27:44,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 249 events. 106/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1014 event pairs, 67 based on Foata normal form. 22/237 useless extension candidates. Maximal degree in co-relation 429. Up to 185 conditions per place. [2024-11-08 16:27:44,716 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 21 selfloop transitions, 0 changer transitions 0/35 dead transitions. [2024-11-08 16:27:44,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 115 flow [2024-11-08 16:27:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:27:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-08 16:27:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 55 transitions. [2024-11-08 16:27:44,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-11-08 16:27:44,737 INFO L175 Difference]: Start difference. First operand has 35 places, 39 transitions, 81 flow. Second operand 2 states and 55 transitions. [2024-11-08 16:27:44,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 115 flow [2024-11-08 16:27:44,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:27:44,744 INFO L231 Difference]: Finished difference. Result has 34 places, 35 transitions, 72 flow [2024-11-08 16:27:44,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=33, 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=2, PETRI_FLOW=72, PETRI_PLACES=34, PETRI_TRANSITIONS=35} [2024-11-08 16:27:44,755 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-08 16:27:44,755 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 72 flow [2024-11-08 16:27:44,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:44,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:44,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:44,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:27:44,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:44,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1555675060, now seen corresponding path program 1 times [2024-11-08 16:27:44,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:44,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215211768] [2024-11-08 16:27:44,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:44,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:45,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:45,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215211768] [2024-11-08 16:27:45,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215211768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:45,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:45,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:27:45,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585160204] [2024-11-08 16:27:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:45,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:27:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:27:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:27:45,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-11-08 16:27:45,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:45,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:45,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-11-08 16:27:45,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:45,626 INFO L124 PetriNetUnfolderBase]: 231/484 cut-off events. [2024-11-08 16:27:45,630 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:27:45,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 484 events. 231/484 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2241 event pairs, 15 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 891. Up to 241 conditions per place. [2024-11-08 16:27:45,635 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 47 selfloop transitions, 15 changer transitions 0/72 dead transitions. [2024-11-08 16:27:45,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 72 transitions, 270 flow [2024-11-08 16:27:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:27:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:27:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-08 16:27:45,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-08 16:27:45,639 INFO L175 Difference]: Start difference. First operand has 34 places, 35 transitions, 72 flow. Second operand 6 states and 130 transitions. [2024-11-08 16:27:45,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 72 transitions, 270 flow [2024-11-08 16:27:45,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 72 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:27:45,643 INFO L231 Difference]: Finished difference. Result has 44 places, 47 transitions, 174 flow [2024-11-08 16:27:45,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2024-11-08 16:27:45,645 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 9 predicate places. [2024-11-08 16:27:45,645 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 174 flow [2024-11-08 16:27:45,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:45,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:45,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:45,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:27:45,647 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:45,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash -981321060, now seen corresponding path program 1 times [2024-11-08 16:27:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:45,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800526081] [2024-11-08 16:27:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:45,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800526081] [2024-11-08 16:27:45,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800526081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:45,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:45,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:27:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140492298] [2024-11-08 16:27:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:27:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:45,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:27:45,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:27:45,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 16:27:45,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:45,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:45,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 16:27:45,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:46,248 INFO L124 PetriNetUnfolderBase]: 293/602 cut-off events. [2024-11-08 16:27:46,248 INFO L125 PetriNetUnfolderBase]: For 192/194 co-relation queries the response was YES. [2024-11-08 16:27:46,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1445 conditions, 602 events. 293/602 cut-off events. For 192/194 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2902 event pairs, 55 based on Foata normal form. 20/606 useless extension candidates. Maximal degree in co-relation 1437. Up to 304 conditions per place. [2024-11-08 16:27:46,256 INFO L140 encePairwiseOnDemand]: 28/40 looper letters, 58 selfloop transitions, 25 changer transitions 0/92 dead transitions. [2024-11-08 16:27:46,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 92 transitions, 480 flow [2024-11-08 16:27:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:27:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:27:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-08 16:27:46,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-08 16:27:46,263 INFO L175 Difference]: Start difference. First operand has 44 places, 47 transitions, 174 flow. Second operand 6 states and 126 transitions. [2024-11-08 16:27:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 92 transitions, 480 flow [2024-11-08 16:27:46,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 92 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:27:46,276 INFO L231 Difference]: Finished difference. Result has 54 places, 63 transitions, 372 flow [2024-11-08 16:27:46,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=54, PETRI_TRANSITIONS=63} [2024-11-08 16:27:46,280 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 19 predicate places. [2024-11-08 16:27:46,281 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 63 transitions, 372 flow [2024-11-08 16:27:46,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:46,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:46,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:46,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:27:46,282 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:46,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:46,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1718228524, now seen corresponding path program 1 times [2024-11-08 16:27:46,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:46,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609425669] [2024-11-08 16:27:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:46,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:46,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:46,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609425669] [2024-11-08 16:27:46,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609425669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:27:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649360416] [2024-11-08 16:27:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:46,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:27:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:27:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:27:46,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2024-11-08 16:27:46,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 63 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:46,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:46,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2024-11-08 16:27:46,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:47,164 INFO L124 PetriNetUnfolderBase]: 424/934 cut-off events. [2024-11-08 16:27:47,164 INFO L125 PetriNetUnfolderBase]: For 1267/1284 co-relation queries the response was YES. [2024-11-08 16:27:47,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 934 events. 424/934 cut-off events. For 1267/1284 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5432 event pairs, 87 based on Foata normal form. 16/923 useless extension candidates. Maximal degree in co-relation 2805. Up to 360 conditions per place. [2024-11-08 16:27:47,172 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 87 selfloop transitions, 27 changer transitions 0/130 dead transitions. [2024-11-08 16:27:47,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 130 transitions, 948 flow [2024-11-08 16:27:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:27:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:27:47,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-11-08 16:27:47,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-08 16:27:47,175 INFO L175 Difference]: Start difference. First operand has 54 places, 63 transitions, 372 flow. Second operand 7 states and 180 transitions. [2024-11-08 16:27:47,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 130 transitions, 948 flow [2024-11-08 16:27:47,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 130 transitions, 948 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:27:47,188 INFO L231 Difference]: Finished difference. Result has 63 places, 79 transitions, 594 flow [2024-11-08 16:27:47,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=594, PETRI_PLACES=63, PETRI_TRANSITIONS=79} [2024-11-08 16:27:47,189 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-11-08 16:27:47,189 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 79 transitions, 594 flow [2024-11-08 16:27:47,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:47,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:47,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:47,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:27:47,190 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:47,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash 623601060, now seen corresponding path program 2 times [2024-11-08 16:27:47,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:47,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016103560] [2024-11-08 16:27:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:47,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:47,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016103560] [2024-11-08 16:27:47,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016103560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:47,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:47,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:27:47,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523885788] [2024-11-08 16:27:47,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:47,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:27:47,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:47,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:27:47,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:27:48,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-11-08 16:27:48,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 79 transitions, 594 flow. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:48,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:48,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-11-08 16:27:48,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:48,866 INFO L124 PetriNetUnfolderBase]: 489/1013 cut-off events. [2024-11-08 16:27:48,867 INFO L125 PetriNetUnfolderBase]: For 2064/2099 co-relation queries the response was YES. [2024-11-08 16:27:48,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3499 conditions, 1013 events. 489/1013 cut-off events. For 2064/2099 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5707 event pairs, 93 based on Foata normal form. 32/1015 useless extension candidates. Maximal degree in co-relation 3482. Up to 580 conditions per place. [2024-11-08 16:27:48,879 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 67 selfloop transitions, 61 changer transitions 0/139 dead transitions. [2024-11-08 16:27:48,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 139 transitions, 1247 flow [2024-11-08 16:27:48,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:27:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 16:27:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 235 transitions. [2024-11-08 16:27:48,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4519230769230769 [2024-11-08 16:27:48,882 INFO L175 Difference]: Start difference. First operand has 63 places, 79 transitions, 594 flow. Second operand 13 states and 235 transitions. [2024-11-08 16:27:48,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 139 transitions, 1247 flow [2024-11-08 16:27:48,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 139 transitions, 1211 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:27:48,904 INFO L231 Difference]: Finished difference. Result has 76 places, 111 transitions, 1005 flow [2024-11-08 16:27:48,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1005, PETRI_PLACES=76, PETRI_TRANSITIONS=111} [2024-11-08 16:27:48,905 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 41 predicate places. [2024-11-08 16:27:48,906 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 111 transitions, 1005 flow [2024-11-08 16:27:48,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:48,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:48,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:48,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:27:48,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:48,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1030722058, now seen corresponding path program 3 times [2024-11-08 16:27:48,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672087733] [2024-11-08 16:27:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:48,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672087733] [2024-11-08 16:27:49,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672087733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:49,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:49,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:27:49,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875313796] [2024-11-08 16:27:49,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:49,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:27:49,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:49,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:27:49,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:27:49,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-11-08 16:27:49,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 111 transitions, 1005 flow. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:49,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:49,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-11-08 16:27:49,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:50,264 INFO L124 PetriNetUnfolderBase]: 484/1019 cut-off events. [2024-11-08 16:27:50,264 INFO L125 PetriNetUnfolderBase]: For 2555/2587 co-relation queries the response was YES. [2024-11-08 16:27:50,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3852 conditions, 1019 events. 484/1019 cut-off events. For 2555/2587 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5782 event pairs, 93 based on Foata normal form. 39/1028 useless extension candidates. Maximal degree in co-relation 3832. Up to 577 conditions per place. [2024-11-08 16:27:50,278 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 66 selfloop transitions, 71 changer transitions 0/148 dead transitions. [2024-11-08 16:27:50,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 148 transitions, 1522 flow [2024-11-08 16:27:50,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:27:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 16:27:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-11-08 16:27:50,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-11-08 16:27:50,281 INFO L175 Difference]: Start difference. First operand has 76 places, 111 transitions, 1005 flow. Second operand 9 states and 177 transitions. [2024-11-08 16:27:50,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 148 transitions, 1522 flow [2024-11-08 16:27:50,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 148 transitions, 1435 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-08 16:27:50,307 INFO L231 Difference]: Finished difference. Result has 85 places, 126 transitions, 1295 flow [2024-11-08 16:27:50,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1295, PETRI_PLACES=85, PETRI_TRANSITIONS=126} [2024-11-08 16:27:50,309 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 50 predicate places. [2024-11-08 16:27:50,309 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 126 transitions, 1295 flow [2024-11-08 16:27:50,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:50,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:50,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:50,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:27:50,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:50,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1613786852, now seen corresponding path program 4 times [2024-11-08 16:27:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:50,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209333987] [2024-11-08 16:27:50,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:50,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:50,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:50,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209333987] [2024-11-08 16:27:50,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209333987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:50,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:50,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:27:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368751459] [2024-11-08 16:27:50,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:50,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:27:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:50,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:27:50,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:27:50,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-11-08 16:27:50,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 126 transitions, 1295 flow. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:50,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:50,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-11-08 16:27:50,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:51,536 INFO L124 PetriNetUnfolderBase]: 423/901 cut-off events. [2024-11-08 16:27:51,536 INFO L125 PetriNetUnfolderBase]: For 2564/2584 co-relation queries the response was YES. [2024-11-08 16:27:51,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3648 conditions, 901 events. 423/901 cut-off events. For 2564/2584 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4776 event pairs, 105 based on Foata normal form. 22/898 useless extension candidates. Maximal degree in co-relation 3623. Up to 517 conditions per place. [2024-11-08 16:27:51,551 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 70 selfloop transitions, 67 changer transitions 0/148 dead transitions. [2024-11-08 16:27:51,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 148 transitions, 1605 flow [2024-11-08 16:27:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:27:51,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:27:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2024-11-08 16:27:51,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4975 [2024-11-08 16:27:51,554 INFO L175 Difference]: Start difference. First operand has 85 places, 126 transitions, 1295 flow. Second operand 10 states and 199 transitions. [2024-11-08 16:27:51,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 148 transitions, 1605 flow [2024-11-08 16:27:51,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 148 transitions, 1570 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-08 16:27:51,580 INFO L231 Difference]: Finished difference. Result has 95 places, 125 transitions, 1370 flow [2024-11-08 16:27:51,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1370, PETRI_PLACES=95, PETRI_TRANSITIONS=125} [2024-11-08 16:27:51,581 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 60 predicate places. [2024-11-08 16:27:51,581 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 125 transitions, 1370 flow [2024-11-08 16:27:51,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:51,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:51,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:51,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:27:51,583 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:51,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:51,583 INFO L85 PathProgramCache]: Analyzing trace with hash -170998902, now seen corresponding path program 5 times [2024-11-08 16:27:51,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:51,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390766950] [2024-11-08 16:27:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:51,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:51,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:51,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390766950] [2024-11-08 16:27:51,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390766950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:51,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:51,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:27:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881876954] [2024-11-08 16:27:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:51,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:27:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:51,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:27:51,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:27:51,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2024-11-08 16:27:51,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 125 transitions, 1370 flow. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:51,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:51,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2024-11-08 16:27:51,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:52,492 INFO L124 PetriNetUnfolderBase]: 525/1185 cut-off events. [2024-11-08 16:27:52,492 INFO L125 PetriNetUnfolderBase]: For 3978/3992 co-relation queries the response was YES. [2024-11-08 16:27:52,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4782 conditions, 1185 events. 525/1185 cut-off events. For 3978/3992 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6987 event pairs, 183 based on Foata normal form. 12/1166 useless extension candidates. Maximal degree in co-relation 4753. Up to 530 conditions per place. [2024-11-08 16:27:52,506 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 115 selfloop transitions, 42 changer transitions 0/177 dead transitions. [2024-11-08 16:27:52,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 177 transitions, 2011 flow [2024-11-08 16:27:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:27:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:27:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-11-08 16:27:52,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6678571428571428 [2024-11-08 16:27:52,509 INFO L175 Difference]: Start difference. First operand has 95 places, 125 transitions, 1370 flow. Second operand 7 states and 187 transitions. [2024-11-08 16:27:52,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 177 transitions, 2011 flow [2024-11-08 16:27:52,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 177 transitions, 1887 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-08 16:27:52,541 INFO L231 Difference]: Finished difference. Result has 96 places, 132 transitions, 1439 flow [2024-11-08 16:27:52,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1439, PETRI_PLACES=96, PETRI_TRANSITIONS=132} [2024-11-08 16:27:52,542 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 61 predicate places. [2024-11-08 16:27:52,542 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 132 transitions, 1439 flow [2024-11-08 16:27:52,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:52,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:52,543 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:52,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:27:52,543 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:52,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash 10455636, now seen corresponding path program 6 times [2024-11-08 16:27:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:52,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128220814] [2024-11-08 16:27:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:52,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:52,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128220814] [2024-11-08 16:27:52,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128220814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:52,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:52,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:27:52,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126576229] [2024-11-08 16:27:52,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:52,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:27:52,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:52,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:27:52,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:27:52,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2024-11-08 16:27:52,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 132 transitions, 1439 flow. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:52,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:52,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2024-11-08 16:27:52,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:53,464 INFO L124 PetriNetUnfolderBase]: 646/1450 cut-off events. [2024-11-08 16:27:53,464 INFO L125 PetriNetUnfolderBase]: For 4905/4923 co-relation queries the response was YES. [2024-11-08 16:27:53,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5783 conditions, 1450 events. 646/1450 cut-off events. For 4905/4923 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 8565 event pairs, 176 based on Foata normal form. 12/1426 useless extension candidates. Maximal degree in co-relation 5752. Up to 472 conditions per place. [2024-11-08 16:27:53,483 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 138 selfloop transitions, 43 changer transitions 0/201 dead transitions. [2024-11-08 16:27:53,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 201 transitions, 2244 flow [2024-11-08 16:27:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:27:53,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:27:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2024-11-08 16:27:53,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.675 [2024-11-08 16:27:53,486 INFO L175 Difference]: Start difference. First operand has 96 places, 132 transitions, 1439 flow. Second operand 7 states and 189 transitions. [2024-11-08 16:27:53,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 201 transitions, 2244 flow [2024-11-08 16:27:53,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 201 transitions, 2196 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-08 16:27:53,517 INFO L231 Difference]: Finished difference. Result has 102 places, 140 transitions, 1612 flow [2024-11-08 16:27:53,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1391, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1612, PETRI_PLACES=102, PETRI_TRANSITIONS=140} [2024-11-08 16:27:53,518 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 67 predicate places. [2024-11-08 16:27:53,518 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 140 transitions, 1612 flow [2024-11-08 16:27:53,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:53,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:53,519 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:53,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:27:53,519 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:53,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:53,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1646290250, now seen corresponding path program 7 times [2024-11-08 16:27:53,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:53,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341581347] [2024-11-08 16:27:53,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:53,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:53,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:53,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:53,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341581347] [2024-11-08 16:27:53,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341581347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:27:53,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:27:53,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:27:53,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944135655] [2024-11-08 16:27:53,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:53,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:27:53,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:27:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:27:53,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 16:27:53,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 140 transitions, 1612 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:53,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:53,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 16:27:53,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:54,670 INFO L124 PetriNetUnfolderBase]: 647/1374 cut-off events. [2024-11-08 16:27:54,671 INFO L125 PetriNetUnfolderBase]: For 4485/4485 co-relation queries the response was YES. [2024-11-08 16:27:54,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5439 conditions, 1374 events. 647/1374 cut-off events. For 4485/4485 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7661 event pairs, 244 based on Foata normal form. 6/1349 useless extension candidates. Maximal degree in co-relation 5405. Up to 928 conditions per place. [2024-11-08 16:27:54,689 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 88 selfloop transitions, 39 changer transitions 5/141 dead transitions. [2024-11-08 16:27:54,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 141 transitions, 1586 flow [2024-11-08 16:27:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:27:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 16:27:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 219 transitions. [2024-11-08 16:27:54,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42115384615384616 [2024-11-08 16:27:54,692 INFO L175 Difference]: Start difference. First operand has 102 places, 140 transitions, 1612 flow. Second operand 13 states and 219 transitions. [2024-11-08 16:27:54,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 141 transitions, 1586 flow [2024-11-08 16:27:54,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 141 transitions, 1485 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-11-08 16:27:54,725 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 1164 flow [2024-11-08 16:27:54,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1164, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2024-11-08 16:27:54,727 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 77 predicate places. [2024-11-08 16:27:54,729 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 1164 flow [2024-11-08 16:27:54,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:54,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:54,730 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:54,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:27:54,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:54,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:54,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1244399306, now seen corresponding path program 1 times [2024-11-08 16:27:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:54,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506137490] [2024-11-08 16:27:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:55,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506137490] [2024-11-08 16:27:55,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506137490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:27:55,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20179819] [2024-11-08 16:27:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:55,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:27:55,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:27:55,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:27:55,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:27:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:55,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 16:27:55,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:27:56,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-08 16:27:56,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 16:27:56,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:27:56,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:27:56,489 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-08 16:27:56,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 1 [2024-11-08 16:27:56,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:27:56,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20179819] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 16:27:56,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:27:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 8] total 21 [2024-11-08 16:27:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113893380] [2024-11-08 16:27:56,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:56,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:27:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:27:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:27:56,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 16:27:56,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 116 transitions, 1164 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:56,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:56,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 16:27:56,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:57,375 INFO L124 PetriNetUnfolderBase]: 1095/2280 cut-off events. [2024-11-08 16:27:57,376 INFO L125 PetriNetUnfolderBase]: For 7343/7345 co-relation queries the response was YES. [2024-11-08 16:27:57,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8710 conditions, 2280 events. 1095/2280 cut-off events. For 7343/7345 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 14068 event pairs, 105 based on Foata normal form. 24/2226 useless extension candidates. Maximal degree in co-relation 8674. Up to 1049 conditions per place. [2024-11-08 16:27:57,416 INFO L140 encePairwiseOnDemand]: 26/40 looper letters, 121 selfloop transitions, 89 changer transitions 0/219 dead transitions. [2024-11-08 16:27:57,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 219 transitions, 2357 flow [2024-11-08 16:27:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:27:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 16:27:57,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 165 transitions. [2024-11-08 16:27:57,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-11-08 16:27:57,420 INFO L175 Difference]: Start difference. First operand has 112 places, 116 transitions, 1164 flow. Second operand 8 states and 165 transitions. [2024-11-08 16:27:57,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 219 transitions, 2357 flow [2024-11-08 16:27:57,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 219 transitions, 2211 flow, removed 16 selfloop flow, removed 10 redundant places. [2024-11-08 16:27:57,463 INFO L231 Difference]: Finished difference. Result has 112 places, 177 transitions, 2004 flow [2024-11-08 16:27:57,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2004, PETRI_PLACES=112, PETRI_TRANSITIONS=177} [2024-11-08 16:27:57,464 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 77 predicate places. [2024-11-08 16:27:57,464 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 177 transitions, 2004 flow [2024-11-08 16:27:57,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:57,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:27:57,468 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:27:57,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:27:57,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:27:57,672 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:27:57,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:27:57,673 INFO L85 PathProgramCache]: Analyzing trace with hash -290568132, now seen corresponding path program 2 times [2024-11-08 16:27:57,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:27:57,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031314500] [2024-11-08 16:27:57,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:27:57,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:27:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:27:58,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:27:58,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:27:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031314500] [2024-11-08 16:27:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031314500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:27:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482142467] [2024-11-08 16:27:58,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:27:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:27:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:27:58,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:27:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:27:58,338 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:27:58,338 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:27:58,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 16:27:58,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:27:58,597 INFO L349 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2024-11-08 16:27:58,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 35 [2024-11-08 16:27:59,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:27:59,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 90 [2024-11-08 16:27:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:27:59,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:27:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:27:59,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482142467] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 16:27:59,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:27:59,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 8] total 19 [2024-11-08 16:27:59,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083707886] [2024-11-08 16:27:59,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:27:59,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:27:59,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:27:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:27:59,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:27:59,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 16:27:59,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 177 transitions, 2004 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:27:59,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:27:59,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 16:27:59,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:27:59,991 INFO L124 PetriNetUnfolderBase]: 1053/2176 cut-off events. [2024-11-08 16:27:59,991 INFO L125 PetriNetUnfolderBase]: For 10489/10489 co-relation queries the response was YES. [2024-11-08 16:28:00,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9751 conditions, 2176 events. 1053/2176 cut-off events. For 10489/10489 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 13077 event pairs, 159 based on Foata normal form. 32/2140 useless extension candidates. Maximal degree in co-relation 9713. Up to 792 conditions per place. [2024-11-08 16:28:00,031 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 102 selfloop transitions, 98 changer transitions 0/208 dead transitions. [2024-11-08 16:28:00,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 208 transitions, 2592 flow [2024-11-08 16:28:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:28:00,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:28:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-08 16:28:00,033 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-11-08 16:28:00,033 INFO L175 Difference]: Start difference. First operand has 112 places, 177 transitions, 2004 flow. Second operand 6 states and 115 transitions. [2024-11-08 16:28:00,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 208 transitions, 2592 flow [2024-11-08 16:28:00,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 208 transitions, 2541 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-08 16:28:00,098 INFO L231 Difference]: Finished difference. Result has 114 places, 176 transitions, 2234 flow [2024-11-08 16:28:00,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2234, PETRI_PLACES=114, PETRI_TRANSITIONS=176} [2024-11-08 16:28:00,099 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 79 predicate places. [2024-11-08 16:28:00,099 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 176 transitions, 2234 flow [2024-11-08 16:28:00,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:00,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:00,100 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:00,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:28:00,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:00,302 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:28:00,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1317404193, now seen corresponding path program 1 times [2024-11-08 16:28:00,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:00,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615992617] [2024-11-08 16:28:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:00,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:00,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615992617] [2024-11-08 16:28:00,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615992617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:00,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:28:00,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:28:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392808399] [2024-11-08 16:28:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:00,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:28:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:28:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:28:00,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 40 [2024-11-08 16:28:00,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 176 transitions, 2234 flow. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:00,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:00,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 40 [2024-11-08 16:28:00,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:28:01,041 INFO L124 PetriNetUnfolderBase]: 936/1981 cut-off events. [2024-11-08 16:28:01,041 INFO L125 PetriNetUnfolderBase]: For 11399/11447 co-relation queries the response was YES. [2024-11-08 16:28:01,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9308 conditions, 1981 events. 936/1981 cut-off events. For 11399/11447 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11636 event pairs, 334 based on Foata normal form. 14/1925 useless extension candidates. Maximal degree in co-relation 9270. Up to 1521 conditions per place. [2024-11-08 16:28:01,073 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 110 selfloop transitions, 8 changer transitions 23/157 dead transitions. [2024-11-08 16:28:01,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 157 transitions, 2101 flow [2024-11-08 16:28:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:28:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:28:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-08 16:28:01,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-08 16:28:01,075 INFO L175 Difference]: Start difference. First operand has 114 places, 176 transitions, 2234 flow. Second operand 5 states and 110 transitions. [2024-11-08 16:28:01,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 157 transitions, 2101 flow [2024-11-08 16:28:01,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 1957 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-08 16:28:01,123 INFO L231 Difference]: Finished difference. Result has 116 places, 133 transitions, 1438 flow [2024-11-08 16:28:01,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1650, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1438, PETRI_PLACES=116, PETRI_TRANSITIONS=133} [2024-11-08 16:28:01,124 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 81 predicate places. [2024-11-08 16:28:01,124 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 133 transitions, 1438 flow [2024-11-08 16:28:01,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:01,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:01,125 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:01,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:28:01,125 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:28:01,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:01,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1681870551, now seen corresponding path program 1 times [2024-11-08 16:28:01,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:01,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598679975] [2024-11-08 16:28:01,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:01,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:01,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:01,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598679975] [2024-11-08 16:28:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598679975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:28:01,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324201398] [2024-11-08 16:28:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:01,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:01,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:28:01,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:28:01,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:28:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:01,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 16:28:01,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:28:01,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 16:28:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:28:01,782 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:28:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324201398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:01,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:28:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 16:28:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215547491] [2024-11-08 16:28:01,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:01,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:01,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:28:01,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-11-08 16:28:01,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 133 transitions, 1438 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:01,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:01,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-11-08 16:28:01,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:28:02,579 INFO L124 PetriNetUnfolderBase]: 1094/2348 cut-off events. [2024-11-08 16:28:02,579 INFO L125 PetriNetUnfolderBase]: For 11908/11940 co-relation queries the response was YES. [2024-11-08 16:28:02,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10716 conditions, 2348 events. 1094/2348 cut-off events. For 11908/11940 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 14533 event pairs, 66 based on Foata normal form. 80/2357 useless extension candidates. Maximal degree in co-relation 10676. Up to 575 conditions per place. [2024-11-08 16:28:02,616 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 215 selfloop transitions, 90 changer transitions 0/325 dead transitions. [2024-11-08 16:28:02,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 325 transitions, 4229 flow [2024-11-08 16:28:02,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:28:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:28:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-11-08 16:28:02,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-08 16:28:02,619 INFO L175 Difference]: Start difference. First operand has 116 places, 133 transitions, 1438 flow. Second operand 7 states and 178 transitions. [2024-11-08 16:28:02,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 325 transitions, 4229 flow [2024-11-08 16:28:02,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 325 transitions, 4037 flow, removed 47 selfloop flow, removed 22 redundant places. [2024-11-08 16:28:02,668 INFO L231 Difference]: Finished difference. Result has 95 places, 185 transitions, 2107 flow [2024-11-08 16:28:02,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2107, PETRI_PLACES=95, PETRI_TRANSITIONS=185} [2024-11-08 16:28:02,670 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 60 predicate places. [2024-11-08 16:28:02,670 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 185 transitions, 2107 flow [2024-11-08 16:28:02,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:02,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:02,671 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:02,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:28:02,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:02,875 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:28:02,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1076480057, now seen corresponding path program 2 times [2024-11-08 16:28:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:02,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605057651] [2024-11-08 16:28:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:02,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:03,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:03,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605057651] [2024-11-08 16:28:03,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605057651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:28:03,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131432718] [2024-11-08 16:28:03,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:28:03,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:28:03,253 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:28:03,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:28:03,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 16:28:03,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:28:03,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 16:28:03,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:28:03,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 16:28:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:28:03,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:28:03,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131432718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:03,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:28:03,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 16:28:03,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615211660] [2024-11-08 16:28:03,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:03,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:03,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:03,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:28:03,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-11-08 16:28:03,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 185 transitions, 2107 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:03,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:03,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-11-08 16:28:03,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:28:04,306 INFO L124 PetriNetUnfolderBase]: 1181/2533 cut-off events. [2024-11-08 16:28:04,307 INFO L125 PetriNetUnfolderBase]: For 14699/14778 co-relation queries the response was YES. [2024-11-08 16:28:04,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12997 conditions, 2533 events. 1181/2533 cut-off events. For 14699/14778 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 15895 event pairs, 105 based on Foata normal form. 68/2518 useless extension candidates. Maximal degree in co-relation 12967. Up to 896 conditions per place. [2024-11-08 16:28:04,346 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 237 selfloop transitions, 42 changer transitions 0/299 dead transitions. [2024-11-08 16:28:04,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 299 transitions, 4004 flow [2024-11-08 16:28:04,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:28:04,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:28:04,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2024-11-08 16:28:04,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-08 16:28:04,348 INFO L175 Difference]: Start difference. First operand has 95 places, 185 transitions, 2107 flow. Second operand 6 states and 140 transitions. [2024-11-08 16:28:04,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 299 transitions, 4004 flow [2024-11-08 16:28:04,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 299 transitions, 3995 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-08 16:28:04,406 INFO L231 Difference]: Finished difference. Result has 101 places, 194 transitions, 2276 flow [2024-11-08 16:28:04,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2276, PETRI_PLACES=101, PETRI_TRANSITIONS=194} [2024-11-08 16:28:04,407 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 66 predicate places. [2024-11-08 16:28:04,407 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 194 transitions, 2276 flow [2024-11-08 16:28:04,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:04,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:04,408 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:04,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:28:04,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:04,610 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:28:04,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:04,611 INFO L85 PathProgramCache]: Analyzing trace with hash -244231363, now seen corresponding path program 3 times [2024-11-08 16:28:04,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:04,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963173419] [2024-11-08 16:28:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:04,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:04,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:04,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:04,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963173419] [2024-11-08 16:28:04,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963173419] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:28:04,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65722597] [2024-11-08 16:28:04,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 16:28:04,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:04,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:28:04,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:28:04,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:28:05,108 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 16:28:05,108 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:28:05,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 16:28:05,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:28:05,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:28:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:28:05,269 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:28:05,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65722597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:28:05,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:28:05,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-08 16:28:05,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500241098] [2024-11-08 16:28:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:28:05,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:28:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:28:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:28:05,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-11-08 16:28:05,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 194 transitions, 2276 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:05,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:05,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-11-08 16:28:05,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:28:05,904 INFO L124 PetriNetUnfolderBase]: 497/1198 cut-off events. [2024-11-08 16:28:05,905 INFO L125 PetriNetUnfolderBase]: For 8695/8713 co-relation queries the response was YES. [2024-11-08 16:28:05,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6736 conditions, 1198 events. 497/1198 cut-off events. For 8695/8713 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6727 event pairs, 66 based on Foata normal form. 22/1179 useless extension candidates. Maximal degree in co-relation 6704. Up to 330 conditions per place. [2024-11-08 16:28:05,925 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 166 selfloop transitions, 83 changer transitions 0/265 dead transitions. [2024-11-08 16:28:05,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 265 transitions, 3871 flow [2024-11-08 16:28:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:28:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 16:28:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 170 transitions. [2024-11-08 16:28:05,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-08 16:28:05,927 INFO L175 Difference]: Start difference. First operand has 101 places, 194 transitions, 2276 flow. Second operand 7 states and 170 transitions. [2024-11-08 16:28:05,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 265 transitions, 3871 flow [2024-11-08 16:28:05,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 265 transitions, 3506 flow, removed 22 selfloop flow, removed 12 redundant places. [2024-11-08 16:28:05,962 INFO L231 Difference]: Finished difference. Result has 97 places, 199 transitions, 2646 flow [2024-11-08 16:28:05,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2646, PETRI_PLACES=97, PETRI_TRANSITIONS=199} [2024-11-08 16:28:05,963 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 62 predicate places. [2024-11-08 16:28:05,963 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 199 transitions, 2646 flow [2024-11-08 16:28:05,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:05,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:28:05,964 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:28:05,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:28:06,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:06,165 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr1ASSERT_VIOLATIONERROR_FUNCTION, workerErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-08 16:28:06,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:28:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1394172266, now seen corresponding path program 1 times [2024-11-08 16:28:06,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:28:06,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012302454] [2024-11-08 16:28:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:06,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:28:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:06,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:28:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012302454] [2024-11-08 16:28:06,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012302454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:28:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768448514] [2024-11-08 16:28:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:28:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:28:06,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:28:06,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:28:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:28:06,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 16:28:06,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:28:06,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:28:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:07,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:28:07,244 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-08 16:28:07,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 29 [2024-11-08 16:28:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:28:07,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768448514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:28:07,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:28:07,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 21 [2024-11-08 16:28:07,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56588149] [2024-11-08 16:28:07,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:28:07,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 16:28:07,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:28:07,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 16:28:07,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:28:07,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-11-08 16:28:07,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 199 transitions, 2646 flow. Second operand has 21 states, 21 states have (on average 12.523809523809524) internal successors, (263), 21 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:07,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:28:07,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-11-08 16:28:07,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:28:08,313 INFO L124 PetriNetUnfolderBase]: 533/1235 cut-off events. [2024-11-08 16:28:08,313 INFO L125 PetriNetUnfolderBase]: For 9068/9075 co-relation queries the response was YES. [2024-11-08 16:28:08,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6966 conditions, 1235 events. 533/1235 cut-off events. For 9068/9075 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6815 event pairs, 15 based on Foata normal form. 9/1215 useless extension candidates. Maximal degree in co-relation 6934. Up to 428 conditions per place. [2024-11-08 16:28:08,325 INFO L140 encePairwiseOnDemand]: 29/40 looper letters, 0 selfloop transitions, 0 changer transitions 247/247 dead transitions. [2024-11-08 16:28:08,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 247 transitions, 3685 flow [2024-11-08 16:28:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:28:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:28:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 159 transitions. [2024-11-08 16:28:08,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3975 [2024-11-08 16:28:08,330 INFO L175 Difference]: Start difference. First operand has 97 places, 199 transitions, 2646 flow. Second operand 10 states and 159 transitions. [2024-11-08 16:28:08,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 247 transitions, 3685 flow [2024-11-08 16:28:08,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 247 transitions, 3603 flow, removed 23 selfloop flow, removed 2 redundant places. [2024-11-08 16:28:08,369 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2024-11-08 16:28:08,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=2589, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2024-11-08 16:28:08,371 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 67 predicate places. [2024-11-08 16:28:08,371 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2024-11-08 16:28:08,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.523809523809524) internal successors, (263), 21 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:28:08,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2024-11-08 16:28:08,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-08 16:28:08,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2024-11-08 16:28:08,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2024-11-08 16:28:08,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-08 16:28:08,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:28:08,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:28:08,581 INFO L407 BasicCegarLoop]: Path program histogram: [7, 3, 2, 1, 1, 1, 1, 1] [2024-11-08 16:28:08,587 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:28:08,587 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:28:08,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:28:08 BasicIcfg [2024-11-08 16:28:08,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:28:08,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:28:08,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:28:08,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:28:08,595 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:27:43" (3/4) ... [2024-11-08 16:28:08,597 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:28:08,601 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-08 16:28:08,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2024-11-08 16:28:08,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-08 16:28:08,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-08 16:28:08,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 16:28:08,721 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:28:08,722 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:28:08,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:28:08,723 INFO L158 Benchmark]: Toolchain (without parser) took 26398.50ms. Allocated memory was 161.5MB in the beginning and 434.1MB in the end (delta: 272.6MB). Free memory was 123.2MB in the beginning and 312.7MB in the end (delta: -189.6MB). Peak memory consumption was 86.0MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,723 INFO L158 Benchmark]: CDTParser took 1.58ms. Allocated memory is still 117.4MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:28:08,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.31ms. Allocated memory is still 161.5MB. Free memory was 123.2MB in the beginning and 100.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.70ms. Allocated memory is still 161.5MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,724 INFO L158 Benchmark]: Boogie Preprocessor took 55.27ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 95.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,725 INFO L158 Benchmark]: RCFGBuilder took 834.42ms. Allocated memory is still 161.5MB. Free memory was 95.7MB in the beginning and 124.5MB in the end (delta: -28.9MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,725 INFO L158 Benchmark]: TraceAbstraction took 24653.15ms. Allocated memory was 161.5MB in the beginning and 434.1MB in the end (delta: 272.6MB). Free memory was 123.4MB in the beginning and 316.9MB in the end (delta: -193.6MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,726 INFO L158 Benchmark]: Witness Printer took 128.70ms. Allocated memory is still 434.1MB. Free memory was 316.9MB in the beginning and 312.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:28:08,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58ms. Allocated memory is still 117.4MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.31ms. Allocated memory is still 161.5MB. Free memory was 123.2MB in the beginning and 100.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.70ms. Allocated memory is still 161.5MB. Free memory was 100.1MB in the beginning and 98.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.27ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 95.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 834.42ms. Allocated memory is still 161.5MB. Free memory was 95.7MB in the beginning and 124.5MB in the end (delta: -28.9MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * TraceAbstraction took 24653.15ms. Allocated memory was 161.5MB in the beginning and 434.1MB in the end (delta: 272.6MB). Free memory was 123.4MB in the beginning and 316.9MB in the end (delta: -193.6MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 128.70ms. Allocated memory is still 434.1MB. Free memory was 316.9MB in the beginning and 312.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 56 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: 24.5s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 12.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 995 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 970 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3524 IncrementalHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 29 mSDtfsCounter, 3524 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 200 SyntacticMatches, 5 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2646occurred in iteration=16, InterpolantAutomatonStates: 129, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 464 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 510 ConstructedInterpolants, 2 QuantifiedInterpolants, 3964 SizeOfPredicates, 72 NumberOfNonLiveVariables, 1040 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 26 InterpolantComputations, 16 PerfectInterpolantSequences, 38/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 16:28:08,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f2a5c61-e369-4b59-9705-3c18bf2ae8c7/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE