./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB --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 a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:07:41,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:07:41,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:07:41,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:07:41,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:07:41,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:07:41,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:07:41,604 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:07:41,605 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:07:41,605 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:07:41,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:07:41,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:07:41,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:07:41,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:07:41,606 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:07:41,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:07:41,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:07:41,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:07:41,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:07:41,608 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:41,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:07:41,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:41,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:07:41,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:07:41,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-11-28 02:07:41,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:07:41,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:07:41,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:07:41,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:07:41,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:07:41,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-28 02:07:44,834 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/data/fad476db5/07026ea864e14b3bbc58f4f00652897e/FLAGe133dbad5 [2024-11-28 02:07:45,158 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:07:45,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-28 02:07:45,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/data/fad476db5/07026ea864e14b3bbc58f4f00652897e/FLAGe133dbad5 [2024-11-28 02:07:45,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/data/fad476db5/07026ea864e14b3bbc58f4f00652897e [2024-11-28 02:07:45,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:07:45,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:07:45,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:45,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:07:45,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:07:45,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67aaa4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45, skipping insertion in model container [2024-11-28 02:07:45,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:07:45,463 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_da30e9a5-4793-4812-9169-2e9e580797ab/sv-benchmarks/c/pthread-wmm/mix017.oepc.i[945,958] [2024-11-28 02:07:45,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:45,722 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:07:45,734 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_da30e9a5-4793-4812-9169-2e9e580797ab/sv-benchmarks/c/pthread-wmm/mix017.oepc.i[945,958] [2024-11-28 02:07:45,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:07:45,877 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:07:45,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45 WrapperNode [2024-11-28 02:07:45,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:07:45,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:45,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:07:45,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:07:45,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,951 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-11-28 02:07:45,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:07:45,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:07:45,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:07:45,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:07:45,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:45,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,013 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:07:46,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,025 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:07:46,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:07:46,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:07:46,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:07:46,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (1/1) ... [2024-11-28 02:07:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:07:46,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:46,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:07:46,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da30e9a5-4793-4812-9169-2e9e580797ab/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:07:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:07:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:07:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 02:07:46,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 02:07:46,115 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 02:07:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 02:07:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 02:07:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 02:07:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 02:07:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 02:07:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:07:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:07:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:07:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:07:46,118 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:07:46,248 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:07:46,250 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:07:46,672 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:07:46,672 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:07:46,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:07:46,941 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:07:46,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:46 BoogieIcfgContainer [2024-11-28 02:07:46,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:07:46,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:07:46,944 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:07:46,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:07:46,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:07:45" (1/3) ... [2024-11-28 02:07:46,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12256464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:46, skipping insertion in model container [2024-11-28 02:07:46,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:07:45" (2/3) ... [2024-11-28 02:07:46,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12256464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:07:46, skipping insertion in model container [2024-11-28 02:07:46,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:07:46" (3/3) ... [2024-11-28 02:07:46,954 INFO L128 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-11-28 02:07:46,972 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:07:46,975 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix017.oepc.i that has 5 procedures, 49 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 02:07:46,975 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:07:47,062 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:07:47,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-28 02:07:47,167 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-28 02:07:47,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:47,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-28 02:07:47,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-28 02:07:47,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-28 02:07:47,198 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:07:47,214 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;@7ae83f0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:07:47,215 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 02:07:47,219 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:07:47,219 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 02:07:47,219 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:07:47,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:47,220 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 02:07:47,220 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:07:47,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 12023700, now seen corresponding path program 1 times [2024-11-28 02:07:47,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:47,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62504935] [2024-11-28 02:07:47,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:47,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:47,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:47,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62504935] [2024-11-28 02:07:47,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62504935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:47,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:47,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:07:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771843294] [2024-11-28 02:07:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:47,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:47,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:47,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:47,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:47,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-11-28 02:07:47,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-28 02:07:47,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:47,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-11-28 02:07:47,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:49,205 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-11-28 02:07:49,206 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 02:07:49,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 4136 events. 2495/4136 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 28535 event pairs, 443 based on Foata normal form. 135/4200 useless extension candidates. Maximal degree in co-relation 7700. Up to 2779 conditions per place. [2024-11-28 02:07:49,251 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-11-28 02:07:49,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-11-28 02:07:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-28 02:07:49,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-11-28 02:07:49,272 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-11-28 02:07:49,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-11-28 02:07:49,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 02:07:49,287 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-28 02:07:49,291 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-28 02:07:49,299 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-28 02:07:49,299 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-28 02:07:49,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-28 02:07:49,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:49,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:49,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:49,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:07:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1673571900, now seen corresponding path program 1 times [2024-11-28 02:07:49,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:49,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142353555] [2024-11-28 02:07:49,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:49,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:49,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142353555] [2024-11-28 02:07:49,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142353555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:49,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:49,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:07:49,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149492445] [2024-11-28 02:07:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:49,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:49,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:49,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:49,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:49,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:07:49,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-28 02:07:49,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:49,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:07:49,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:53,363 INFO L124 PetriNetUnfolderBase]: 13249/19196 cut-off events. [2024-11-28 02:07:53,364 INFO L125 PetriNetUnfolderBase]: For 918/918 co-relation queries the response was YES. [2024-11-28 02:07:53,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38182 conditions, 19196 events. 13249/19196 cut-off events. For 918/918 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 128823 event pairs, 7720 based on Foata normal form. 0/18787 useless extension candidates. Maximal degree in co-relation 38172. Up to 11671 conditions per place. [2024-11-28 02:07:53,521 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 37 selfloop transitions, 5 changer transitions 58/113 dead transitions. [2024-11-28 02:07:53,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 456 flow [2024-11-28 02:07:53,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:07:53,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:07:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 238 transitions. [2024-11-28 02:07:53,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-28 02:07:53,523 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 238 transitions. [2024-11-28 02:07:53,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 456 flow [2024-11-28 02:07:53,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:53,532 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 147 flow [2024-11-28 02:07:53,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=147, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-11-28 02:07:53,533 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-28 02:07:53,533 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 147 flow [2024-11-28 02:07:53,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-28 02:07:53,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:53,533 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:53,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:53,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:07:53,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1502900189, now seen corresponding path program 1 times [2024-11-28 02:07:53,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:53,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375748839] [2024-11-28 02:07:53,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:53,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:53,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375748839] [2024-11-28 02:07:53,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375748839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:53,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:53,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:53,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545533153] [2024-11-28 02:07:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:53,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:53,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:53,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:07:54,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:07:54,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-28 02:07:54,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:54,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:07:54,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:56,333 INFO L124 PetriNetUnfolderBase]: 10019/14530 cut-off events. [2024-11-28 02:07:56,334 INFO L125 PetriNetUnfolderBase]: For 14250/14253 co-relation queries the response was YES. [2024-11-28 02:07:56,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39463 conditions, 14530 events. 10019/14530 cut-off events. For 14250/14253 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 92654 event pairs, 1683 based on Foata normal form. 390/14849 useless extension candidates. Maximal degree in co-relation 39448. Up to 9073 conditions per place. [2024-11-28 02:07:56,444 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 42 selfloop transitions, 3 changer transitions 51/109 dead transitions. [2024-11-28 02:07:56,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 109 transitions, 579 flow [2024-11-28 02:07:56,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:07:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 02:07:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 213 transitions. [2024-11-28 02:07:56,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6209912536443148 [2024-11-28 02:07:56,451 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 147 flow. Second operand 7 states and 213 transitions. [2024-11-28 02:07:56,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 109 transitions, 579 flow [2024-11-28 02:07:56,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 109 transitions, 566 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-28 02:07:56,636 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 157 flow [2024-11-28 02:07:56,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-11-28 02:07:56,638 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-28 02:07:56,638 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 157 flow [2024-11-28 02:07:56,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-28 02:07:56,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:56,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:56,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:56,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:07:56,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:56,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1094328144, now seen corresponding path program 1 times [2024-11-28 02:07:56,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:56,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223970418] [2024-11-28 02:07:56,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:56,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:56,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223970418] [2024-11-28 02:07:56,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223970418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:56,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:56,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:56,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456992721] [2024-11-28 02:07:56,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:56,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:56,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:56,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:56,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:56,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-28 02:07:56,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-28 02:07:56,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:56,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-28 02:07:56,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:59,339 INFO L124 PetriNetUnfolderBase]: 13591/20365 cut-off events. [2024-11-28 02:07:59,339 INFO L125 PetriNetUnfolderBase]: For 9627/9807 co-relation queries the response was YES. [2024-11-28 02:07:59,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46526 conditions, 20365 events. 13591/20365 cut-off events. For 9627/9807 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 143684 event pairs, 2484 based on Foata normal form. 681/20267 useless extension candidates. Maximal degree in co-relation 46507. Up to 9547 conditions per place. [2024-11-28 02:07:59,457 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 53 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2024-11-28 02:07:59,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 345 flow [2024-11-28 02:07:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-28 02:07:59,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6989795918367347 [2024-11-28 02:07:59,460 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 157 flow. Second operand 4 states and 137 transitions. [2024-11-28 02:07:59,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 345 flow [2024-11-28 02:07:59,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 331 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-28 02:07:59,652 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 189 flow [2024-11-28 02:07:59,652 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-28 02:07:59,654 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-28 02:07:59,654 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 189 flow [2024-11-28 02:07:59,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-28 02:07:59,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:59,654 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:59,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:07:59,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:07:59,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash -2057947707, now seen corresponding path program 1 times [2024-11-28 02:07:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:59,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401827706] [2024-11-28 02:07:59,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:00,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:00,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401827706] [2024-11-28 02:08:00,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401827706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:00,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:00,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:08:00,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685061428] [2024-11-28 02:08:00,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:00,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:08:00,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:00,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:08:00,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:08:00,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-28 02:08:00,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:08:00,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:00,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-28 02:08:00,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:08:01,812 INFO L124 PetriNetUnfolderBase]: 11180/16762 cut-off events. [2024-11-28 02:08:01,812 INFO L125 PetriNetUnfolderBase]: For 5969/6083 co-relation queries the response was YES. [2024-11-28 02:08:01,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40643 conditions, 16762 events. 11180/16762 cut-off events. For 5969/6083 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 113530 event pairs, 1467 based on Foata normal form. 602/16714 useless extension candidates. Maximal degree in co-relation 40626. Up to 5576 conditions per place. [2024-11-28 02:08:02,024 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 69 selfloop transitions, 10 changer transitions 0/97 dead transitions. [2024-11-28 02:08:02,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 470 flow [2024-11-28 02:08:02,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:08:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 02:08:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-28 02:08:02,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7183673469387755 [2024-11-28 02:08:02,026 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 189 flow. Second operand 5 states and 176 transitions. [2024-11-28 02:08:02,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 470 flow [2024-11-28 02:08:02,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:08:02,030 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 254 flow [2024-11-28 02:08:02,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-28 02:08:02,031 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-28 02:08:02,031 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 254 flow [2024-11-28 02:08:02,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:08:02,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:08:02,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:02,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:08:02,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:08:02,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -246178957, now seen corresponding path program 1 times [2024-11-28 02:08:02,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:02,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594033758] [2024-11-28 02:08:02,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:03,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:03,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594033758] [2024-11-28 02:08:03,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594033758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:03,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:03,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:08:03,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675188890] [2024-11-28 02:08:03,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:03,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:08:03,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:03,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:08:03,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:08:03,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:08:03,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 254 flow. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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) [2024-11-28 02:08:03,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:03,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:08:03,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:08:08,068 INFO L124 PetriNetUnfolderBase]: 20706/32193 cut-off events. [2024-11-28 02:08:08,068 INFO L125 PetriNetUnfolderBase]: For 38688/44172 co-relation queries the response was YES. [2024-11-28 02:08:08,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91692 conditions, 32193 events. 20706/32193 cut-off events. For 38688/44172 co-relation queries the response was YES. Maximal size of possible extension queue 1717. Compared 254937 event pairs, 5597 based on Foata normal form. 609/30793 useless extension candidates. Maximal degree in co-relation 91672. Up to 12177 conditions per place. [2024-11-28 02:08:08,251 INFO L140 encePairwiseOnDemand]: 35/49 looper letters, 127 selfloop transitions, 32 changer transitions 12/194 dead transitions. [2024-11-28 02:08:08,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 194 transitions, 1085 flow [2024-11-28 02:08:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 02:08:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 02:08:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 410 transitions. [2024-11-28 02:08:08,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.597667638483965 [2024-11-28 02:08:08,253 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 254 flow. Second operand 14 states and 410 transitions. [2024-11-28 02:08:08,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 194 transitions, 1085 flow [2024-11-28 02:08:08,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 194 transitions, 1070 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 02:08:08,265 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 518 flow [2024-11-28 02:08:08,266 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=518, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2024-11-28 02:08:08,266 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2024-11-28 02:08:08,266 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 518 flow [2024-11-28 02:08:08,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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) [2024-11-28 02:08:08,267 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:08:08,267 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:08,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:08:08,267 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:08:08,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash 745626647, now seen corresponding path program 2 times [2024-11-28 02:08:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:08,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998165558] [2024-11-28 02:08:08,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:08:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:08,350 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:08:08,350 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:08,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:08,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998165558] [2024-11-28 02:08:08,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998165558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:08,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:08,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:08:08,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469519031] [2024-11-28 02:08:08,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:08,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:08:08,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:08,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:08:08,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:08:08,635 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-28 02:08:08,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-28 02:08:08,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:08,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-28 02:08:08,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:08:13,258 INFO L124 PetriNetUnfolderBase]: 22487/33244 cut-off events. [2024-11-28 02:08:13,258 INFO L125 PetriNetUnfolderBase]: For 57973/60138 co-relation queries the response was YES. [2024-11-28 02:08:13,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107483 conditions, 33244 events. 22487/33244 cut-off events. For 57973/60138 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 230250 event pairs, 1780 based on Foata normal form. 1438/33840 useless extension candidates. Maximal degree in co-relation 107453. Up to 11270 conditions per place. [2024-11-28 02:08:13,464 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 118 selfloop transitions, 14 changer transitions 10/170 dead transitions. [2024-11-28 02:08:13,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 170 transitions, 1198 flow [2024-11-28 02:08:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:08:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:08:13,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-11-28 02:08:13,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-28 02:08:13,465 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 518 flow. Second operand 6 states and 213 transitions. [2024-11-28 02:08:13,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 170 transitions, 1198 flow [2024-11-28 02:08:13,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 170 transitions, 1145 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-28 02:08:13,531 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 526 flow [2024-11-28 02:08:13,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2024-11-28 02:08:13,532 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 31 predicate places. [2024-11-28 02:08:13,533 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 526 flow [2024-11-28 02:08:13,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-28 02:08:13,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:08:13,533 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:13,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:08:13,533 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:08:13,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:13,534 INFO L85 PathProgramCache]: Analyzing trace with hash -713801392, now seen corresponding path program 1 times [2024-11-28 02:08:13,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:13,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028440111] [2024-11-28 02:08:13,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:13,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:08:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028440111] [2024-11-28 02:08:15,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028440111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:15,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:15,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:08:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964987051] [2024-11-28 02:08:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:08:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:15,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:08:15,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:08:15,052 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-28 02:08:15,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 526 flow. Second operand has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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) [2024-11-28 02:08:15,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:15,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-28 02:08:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:08:19,242 INFO L124 PetriNetUnfolderBase]: 17013/29197 cut-off events. [2024-11-28 02:08:19,243 INFO L125 PetriNetUnfolderBase]: For 66420/75957 co-relation queries the response was YES. [2024-11-28 02:08:19,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94459 conditions, 29197 events. 17013/29197 cut-off events. For 66420/75957 co-relation queries the response was YES. Maximal size of possible extension queue 1997. Compared 263997 event pairs, 5372 based on Foata normal form. 1193/27479 useless extension candidates. Maximal degree in co-relation 94428. Up to 9325 conditions per place. [2024-11-28 02:08:19,413 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 80 selfloop transitions, 22 changer transitions 26/171 dead transitions. [2024-11-28 02:08:19,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 171 transitions, 1187 flow [2024-11-28 02:08:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:08:19,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 02:08:19,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2024-11-28 02:08:19,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.655328798185941 [2024-11-28 02:08:19,415 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 526 flow. Second operand 9 states and 289 transitions. [2024-11-28 02:08:19,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 171 transitions, 1187 flow [2024-11-28 02:08:19,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 1140 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-28 02:08:19,737 INFO L231 Difference]: Finished difference. Result has 95 places, 98 transitions, 663 flow [2024-11-28 02:08:19,737 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=663, PETRI_PLACES=95, PETRI_TRANSITIONS=98} [2024-11-28 02:08:19,738 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 38 predicate places. [2024-11-28 02:08:19,738 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 98 transitions, 663 flow [2024-11-28 02:08:19,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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) [2024-11-28 02:08:19,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:08:19,739 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:19,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:08:19,739 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:08:19,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1086634778, now seen corresponding path program 2 times [2024-11-28 02:08:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:19,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749157950] [2024-11-28 02:08:19,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:08:19,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:19,765 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:08:19,765 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:20,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:20,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749157950] [2024-11-28 02:08:20,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749157950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:20,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:20,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:08:20,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031050926] [2024-11-28 02:08:20,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:20,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:08:20,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:20,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:08:20,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:20,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-28 02:08:20,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 98 transitions, 663 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-11-28 02:08:20,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:20,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-28 02:08:20,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:08:26,813 INFO L124 PetriNetUnfolderBase]: 35671/56474 cut-off events. [2024-11-28 02:08:26,813 INFO L125 PetriNetUnfolderBase]: For 181255/194075 co-relation queries the response was YES. [2024-11-28 02:08:27,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201551 conditions, 56474 events. 35671/56474 cut-off events. For 181255/194075 co-relation queries the response was YES. Maximal size of possible extension queue 3958. Compared 505595 event pairs, 10912 based on Foata normal form. 1530/51913 useless extension candidates. Maximal degree in co-relation 201516. Up to 22005 conditions per place. [2024-11-28 02:08:27,461 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 160 selfloop transitions, 16 changer transitions 34/237 dead transitions. [2024-11-28 02:08:27,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 237 transitions, 2011 flow [2024-11-28 02:08:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:08:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 02:08:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 246 transitions. [2024-11-28 02:08:27,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6275510204081632 [2024-11-28 02:08:27,462 INFO L175 Difference]: Start difference. First operand has 95 places, 98 transitions, 663 flow. Second operand 8 states and 246 transitions. [2024-11-28 02:08:27,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 237 transitions, 2011 flow [2024-11-28 02:08:29,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 237 transitions, 1944 flow, removed 33 selfloop flow, removed 5 redundant places. [2024-11-28 02:08:29,040 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 739 flow [2024-11-28 02:08:29,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=739, PETRI_PLACES=97, PETRI_TRANSITIONS=105} [2024-11-28 02:08:29,041 INFO L279 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2024-11-28 02:08:29,041 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 739 flow [2024-11-28 02:08:29,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-11-28 02:08:29,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:08:29,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:29,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:08:29,041 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:08:29,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -13104314, now seen corresponding path program 3 times [2024-11-28 02:08:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:29,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729936697] [2024-11-28 02:08:29,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:08:29,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:29,129 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:08:29,129 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:08:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:08:29,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:08:29,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729936697] [2024-11-28 02:08:29,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729936697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:08:29,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:08:29,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:08:29,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487840515] [2024-11-28 02:08:29,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:08:29,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:08:29,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:08:29,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:08:29,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:08:29,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-28 02:08:29,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 105 transitions, 739 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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) [2024-11-28 02:08:29,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:08:29,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-28 02:08:29,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand