/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.order.of.the.error.locations.to.be.checked TOGETHER -tc /storage/repos/CAV22/benchmarks/AutomizerCInline.xml -i /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-trans.wvr_bound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 19:44:43,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 19:44:43,952 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 19:44:43,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 19:44:43,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 19:44:43,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 19:44:43,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 19:44:43,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 19:44:43,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 19:44:43,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 19:44:43,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 19:44:43,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 19:44:43,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 19:44:43,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 19:44:43,978 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 19:44:43,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 19:44:43,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 19:44:43,979 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 19:44:43,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 19:44:43,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 19:44:43,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 19:44:43,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 19:44:43,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 19:44:43,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 19:44:43,984 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 19:44:43,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 19:44:43,985 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 19:44:43,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 19:44:43,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 19:44:43,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 19:44:43,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 19:44:43,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 19:44:43,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 19:44:43,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 19:44:43,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 19:44:43,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 19:44:43,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 19:44:43,988 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 19:44:43,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 19:44:43,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 19:44:43,989 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 19:44:43,993 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 19:44:44,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 19:44:44,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 19:44:44,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 19:44:44,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 19:44:44,241 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 19:44:44,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-trans.wvr_bound2.c [2023-08-03 19:44:45,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 19:44:45,602 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 19:44:45,603 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-trans.wvr_bound2.c [2023-08-03 19:44:45,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e55399e1/8429c504bab2408e8f21a090bdb54be6/FLAGe75aa0db1 [2023-08-03 19:44:45,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e55399e1/8429c504bab2408e8f21a090bdb54be6 [2023-08-03 19:44:45,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 19:44:45,639 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 19:44:45,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 19:44:45,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 19:44:45,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 19:44:45,647 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:44:45" (1/1) ... [2023-08-03 19:44:45,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d39bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:45, skipping insertion in model container [2023-08-03 19:44:45,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 07:44:45" (1/1) ... [2023-08-03 19:44:45,682 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 19:44:45,957 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-trans.wvr_bound2.c[19117,19130] [2023-08-03 19:44:45,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 19:44:45,976 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 19:44:46,040 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/weaver_chl-poker-hand-trans.wvr_bound2.c[19117,19130] [2023-08-03 19:44:46,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 19:44:46,051 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 19:44:46,051 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 19:44:46,057 INFO L206 MainTranslator]: Completed translation [2023-08-03 19:44:46,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46 WrapperNode [2023-08-03 19:44:46,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 19:44:46,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 19:44:46,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 19:44:46,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 19:44:46,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,176 INFO L138 Inliner]: procedures = 26, calls = 454, calls flagged for inlining = 100, calls inlined = 144, statements flattened = 2413 [2023-08-03 19:44:46,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 19:44:46,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 19:44:46,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 19:44:46,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 19:44:46,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 19:44:46,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 19:44:46,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 19:44:46,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 19:44:46,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (1/1) ... [2023-08-03 19:44:46,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 19:44:46,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:44:46,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-03 19:44:46,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-03 19:44:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 19:44:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 19:44:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 19:44:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-03 19:44:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-03 19:44:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-03 19:44:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-03 19:44:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-03 19:44:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-03 19:44:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 19:44:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 19:44:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 19:44:46,454 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-03 19:44:46,694 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 19:44:46,695 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 19:44:48,473 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 19:44:50,927 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 19:44:50,927 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-08-03 19:44:50,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:44:50 BoogieIcfgContainer [2023-08-03 19:44:50,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 19:44:50,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 19:44:50,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 19:44:50,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 19:44:50,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 07:44:45" (1/3) ... [2023-08-03 19:44:50,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bffd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:44:50, skipping insertion in model container [2023-08-03 19:44:50,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 07:44:46" (2/3) ... [2023-08-03 19:44:50,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bffd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 07:44:50, skipping insertion in model container [2023-08-03 19:44:50,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 07:44:50" (3/3) ... [2023-08-03 19:44:50,944 INFO L112 eAbstractionObserver]: Analyzing ICFG weaver_chl-poker-hand-trans.wvr_bound2.c [2023-08-03 19:44:50,953 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 19:44:50,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 19:44:50,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-03 19:44:50,961 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 19:44:51,342 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-03 19:44:51,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,038 INFO L124 PetriNetUnfolderBase]: 200/1422 cut-off events. [2023-08-03 19:44:52,038 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-03 19:44:52,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1422 events. 200/1422 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6201 event pairs, 0 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 967. Up to 28 conditions per place. [2023-08-03 19:44:52,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,076 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 19:44:52,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,090 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 687 places, 774 transitions, 1590 flow [2023-08-03 19:44:52,560 INFO L124 PetriNetUnfolderBase]: 200/1422 cut-off events. [2023-08-03 19:44:52,560 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-03 19:44:52,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1422 events. 200/1422 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6201 event pairs, 0 based on Foata normal form. 0/1212 useless extension candidates. Maximal degree in co-relation 967. Up to 28 conditions per place. [2023-08-03 19:44:52,608 INFO L119 LiptonReduction]: Number of co-enabled transitions 43560 [2023-08-03 19:46:14,133 INFO L134 LiptonReduction]: Checked pairs total: 51985 [2023-08-03 19:46:14,133 INFO L136 LiptonReduction]: Total number of compositions: 884 [2023-08-03 19:46:14,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 19:46:14,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4f42fde7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 19:46:14,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 19:46:14,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 19:46:14,210 INFO L124 PetriNetUnfolderBase]: 24/68 cut-off events. [2023-08-03 19:46:14,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 19:46:14,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:14,211 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:14,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:14,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash 516068494, now seen corresponding path program 1 times [2023-08-03 19:46:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:14,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356031027] [2023-08-03 19:46:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:14,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-03 19:46:14,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:14,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356031027] [2023-08-03 19:46:14,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356031027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:46:14,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:46:14,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-03 19:46:14,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064171476] [2023-08-03 19:46:14,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:46:14,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:46:14,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:46:14,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:46:15,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1658 [2023-08-03 19:46:15,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 83 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:15,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:15,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1658 [2023-08-03 19:46:15,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:23,503 INFO L124 PetriNetUnfolderBase]: 6115/7851 cut-off events. [2023-08-03 19:46:23,504 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2023-08-03 19:46:23,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15811 conditions, 7851 events. 6115/7851 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28902 event pairs, 2466 based on Foata normal form. 0/3897 useless extension candidates. Maximal degree in co-relation 12842. Up to 7620 conditions per place. [2023-08-03 19:46:23,548 INFO L140 encePairwiseOnDemand]: 1650/1658 looper letters, 73 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2023-08-03 19:46:23,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 85 transitions, 370 flow [2023-08-03 19:46:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:46:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:46:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1976 transitions. [2023-08-03 19:46:23,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39726578206674706 [2023-08-03 19:46:23,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1976 transitions. [2023-08-03 19:46:23,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1976 transitions. [2023-08-03 19:46:23,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:23,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1976 transitions. [2023-08-03 19:46:23,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:23,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:23,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:23,608 INFO L175 Difference]: Start difference. First operand has 57 places, 83 transitions, 208 flow. Second operand 3 states and 1976 transitions. [2023-08-03 19:46:23,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 85 transitions, 370 flow [2023-08-03 19:46:23,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 85 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 19:46:23,616 INFO L231 Difference]: Finished difference. Result has 59 places, 85 transitions, 238 flow [2023-08-03 19:46:23,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=59, PETRI_TRANSITIONS=85} [2023-08-03 19:46:23,620 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-03 19:46:23,621 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 85 transitions, 238 flow [2023-08-03 19:46:23,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:23,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:23,622 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:23,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 19:46:23,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:23,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash -107087334, now seen corresponding path program 1 times [2023-08-03 19:46:23,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:23,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392792716] [2023-08-03 19:46:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:23,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-03 19:46:23,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:23,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392792716] [2023-08-03 19:46:23,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392792716] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:46:23,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:46:23,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-03 19:46:23,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505449358] [2023-08-03 19:46:23,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:46:23,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:46:23,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:23,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:46:23,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:46:24,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1658 [2023-08-03 19:46:24,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 85 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:24,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:24,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1658 [2023-08-03 19:46:24,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:31,423 INFO L124 PetriNetUnfolderBase]: 6115/7857 cut-off events. [2023-08-03 19:46:31,423 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-03 19:46:31,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15838 conditions, 7857 events. 6115/7857 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28892 event pairs, 2466 based on Foata normal form. 0/3906 useless extension candidates. Maximal degree in co-relation 15792. Up to 7623 conditions per place. [2023-08-03 19:46:31,453 INFO L140 encePairwiseOnDemand]: 1645/1658 looper letters, 73 selfloop transitions, 12 changer transitions 0/91 dead transitions. [2023-08-03 19:46:31,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 420 flow [2023-08-03 19:46:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:46:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:46:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1981 transitions. [2023-08-03 19:46:31,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39827100924809006 [2023-08-03 19:46:31,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1981 transitions. [2023-08-03 19:46:31,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1981 transitions. [2023-08-03 19:46:31,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:31,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1981 transitions. [2023-08-03 19:46:31,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:31,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:31,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:31,481 INFO L175 Difference]: Start difference. First operand has 59 places, 85 transitions, 238 flow. Second operand 3 states and 1981 transitions. [2023-08-03 19:46:31,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 420 flow [2023-08-03 19:46:31,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 91 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:46:31,493 INFO L231 Difference]: Finished difference. Result has 61 places, 91 transitions, 294 flow [2023-08-03 19:46:31,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=61, PETRI_TRANSITIONS=91} [2023-08-03 19:46:31,494 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-08-03 19:46:31,494 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 91 transitions, 294 flow [2023-08-03 19:46:31,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 637.3333333333334) internal successors, (1912), 3 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:31,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:31,496 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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] [2023-08-03 19:46:31,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 19:46:31,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:31,496 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:31,497 INFO L85 PathProgramCache]: Analyzing trace with hash 569371831, now seen corresponding path program 1 times [2023-08-03 19:46:31,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:31,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214885466] [2023-08-03 19:46:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:31,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-03 19:46:31,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:31,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214885466] [2023-08-03 19:46:31,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214885466] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:31,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105401020] [2023-08-03 19:46:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:31,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:31,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:31,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-03 19:46:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:32,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-03 19:46:32,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-03 19:46:32,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-03 19:46:32,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105401020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:46:32,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-03 19:46:32,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-03 19:46:32,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758728230] [2023-08-03 19:46:32,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:46:32,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:46:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:32,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:46:32,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-03 19:46:32,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1658 [2023-08-03 19:46:32,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 91 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:32,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:32,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1658 [2023-08-03 19:46:32,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:39,600 INFO L124 PetriNetUnfolderBase]: 6115/7860 cut-off events. [2023-08-03 19:46:39,601 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-03 19:46:39,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15867 conditions, 7860 events. 6115/7860 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28856 event pairs, 2466 based on Foata normal form. 1/3914 useless extension candidates. Maximal degree in co-relation 15810. Up to 7626 conditions per place. [2023-08-03 19:46:39,625 INFO L140 encePairwiseOnDemand]: 1646/1658 looper letters, 76 selfloop transitions, 12 changer transitions 0/94 dead transitions. [2023-08-03 19:46:39,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 476 flow [2023-08-03 19:46:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:46:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 19:46:39,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1978 transitions. [2023-08-03 19:46:39,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3976678729392843 [2023-08-03 19:46:39,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1978 transitions. [2023-08-03 19:46:39,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1978 transitions. [2023-08-03 19:46:39,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:39,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1978 transitions. [2023-08-03 19:46:39,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.3333333333334) internal successors, (1978), 3 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:39,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:39,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1658.0) internal successors, (6632), 4 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:39,650 INFO L175 Difference]: Start difference. First operand has 61 places, 91 transitions, 294 flow. Second operand 3 states and 1978 transitions. [2023-08-03 19:46:39,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 476 flow [2023-08-03 19:46:39,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:46:39,658 INFO L231 Difference]: Finished difference. Result has 63 places, 94 transitions, 330 flow [2023-08-03 19:46:39,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=63, PETRI_TRANSITIONS=94} [2023-08-03 19:46:39,659 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2023-08-03 19:46:39,659 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 94 transitions, 330 flow [2023-08-03 19:46:39,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:39,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:39,661 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 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] [2023-08-03 19:46:39,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:39,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:39,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:39,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:39,870 INFO L85 PathProgramCache]: Analyzing trace with hash 664568008, now seen corresponding path program 1 times [2023-08-03 19:46:39,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:39,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991014222] [2023-08-03 19:46:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:46:40,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991014222] [2023-08-03 19:46:40,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991014222] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222024307] [2023-08-03 19:46:40,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:40,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:40,068 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:40,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-03 19:46:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:40,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-03 19:46:40,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:46:40,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:46:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-08-03 19:46:40,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222024307] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:46:40,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:46:40,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-03 19:46:40,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524442504] [2023-08-03 19:46:40,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:46:40,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-03 19:46:40,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:40,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-03 19:46:40,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-03 19:46:41,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1658 [2023-08-03 19:46:41,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 94 transitions, 330 flow. Second operand has 8 states, 8 states have (on average 612.0) internal successors, (4896), 8 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:41,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:41,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1658 [2023-08-03 19:46:41,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:48,560 INFO L124 PetriNetUnfolderBase]: 6115/7884 cut-off events. [2023-08-03 19:46:48,560 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2023-08-03 19:46:48,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15955 conditions, 7884 events. 6115/7884 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28844 event pairs, 2466 based on Foata normal form. 18/3954 useless extension candidates. Maximal degree in co-relation 15838. Up to 7620 conditions per place. [2023-08-03 19:46:48,585 INFO L140 encePairwiseOnDemand]: 1633/1658 looper letters, 64 selfloop transitions, 48 changer transitions 0/118 dead transitions. [2023-08-03 19:46:48,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 118 transitions, 650 flow [2023-08-03 19:46:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-03 19:46:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-03 19:46:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4992 transitions. [2023-08-03 19:46:48,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.376357056694813 [2023-08-03 19:46:48,597 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4992 transitions. [2023-08-03 19:46:48,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4992 transitions. [2023-08-03 19:46:48,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:48,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4992 transitions. [2023-08-03 19:46:48,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 624.0) internal successors, (4992), 8 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:48,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 1658.0) internal successors, (14922), 9 states have internal predecessors, (14922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:48,627 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 1658.0) internal successors, (14922), 9 states have internal predecessors, (14922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:48,627 INFO L175 Difference]: Start difference. First operand has 63 places, 94 transitions, 330 flow. Second operand 8 states and 4992 transitions. [2023-08-03 19:46:48,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 118 transitions, 650 flow [2023-08-03 19:46:48,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 118 transitions, 638 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 19:46:48,631 INFO L231 Difference]: Finished difference. Result has 70 places, 118 transitions, 560 flow [2023-08-03 19:46:48,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=560, PETRI_PLACES=70, PETRI_TRANSITIONS=118} [2023-08-03 19:46:48,632 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 13 predicate places. [2023-08-03 19:46:48,632 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 118 transitions, 560 flow [2023-08-03 19:46:48,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 612.0) internal successors, (4896), 8 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:48,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:48,634 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:48,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:48,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-03 19:46:48,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:48,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash 180767214, now seen corresponding path program 2 times [2023-08-03 19:46:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50705317] [2023-08-03 19:46:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50705317] [2023-08-03 19:46:49,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50705317] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732430332] [2023-08-03 19:46:49,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-03 19:46:49,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:49,241 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:49,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-03 19:46:49,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-03 19:46:49,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 19:46:49,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-03 19:46:49,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:46:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:50,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:46:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-08-03 19:46:50,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732430332] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:46:50,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:46:50,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-03 19:46:50,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507898494] [2023-08-03 19:46:50,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:46:50,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-03 19:46:50,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:46:50,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-03 19:46:50,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=156, Unknown=0, NotChecked=0, Total=272 [2023-08-03 19:46:51,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1658 [2023-08-03 19:46:51,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 118 transitions, 560 flow. Second operand has 17 states, 17 states have (on average 609.8823529411765) internal successors, (10368), 17 states have internal predecessors, (10368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:51,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:46:51,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1658 [2023-08-03 19:46:51,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:46:58,519 INFO L124 PetriNetUnfolderBase]: 6115/7917 cut-off events. [2023-08-03 19:46:58,519 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2023-08-03 19:46:58,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16155 conditions, 7917 events. 6115/7917 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 29023 event pairs, 2466 based on Foata normal form. 29/4001 useless extension candidates. Maximal degree in co-relation 15946. Up to 7620 conditions per place. [2023-08-03 19:46:58,545 INFO L140 encePairwiseOnDemand]: 1633/1658 looper letters, 64 selfloop transitions, 81 changer transitions 0/151 dead transitions. [2023-08-03 19:46:58,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 151 transitions, 1048 flow [2023-08-03 19:46:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-03 19:46:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-03 19:46:58,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 10497 transitions. [2023-08-03 19:46:58,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724189313843752 [2023-08-03 19:46:58,569 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 10497 transitions. [2023-08-03 19:46:58,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 10497 transitions. [2023-08-03 19:46:58,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:46:58,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 10497 transitions. [2023-08-03 19:46:58,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 617.4705882352941) internal successors, (10497), 17 states have internal predecessors, (10497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:58,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 1658.0) internal successors, (29844), 18 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:58,631 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 1658.0) internal successors, (29844), 18 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:58,631 INFO L175 Difference]: Start difference. First operand has 70 places, 118 transitions, 560 flow. Second operand 17 states and 10497 transitions. [2023-08-03 19:46:58,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 151 transitions, 1048 flow [2023-08-03 19:46:58,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 151 transitions, 908 flow, removed 52 selfloop flow, removed 4 redundant places. [2023-08-03 19:46:58,637 INFO L231 Difference]: Finished difference. Result has 85 places, 151 transitions, 850 flow [2023-08-03 19:46:58,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=850, PETRI_PLACES=85, PETRI_TRANSITIONS=151} [2023-08-03 19:46:58,637 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 28 predicate places. [2023-08-03 19:46:58,638 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 151 transitions, 850 flow [2023-08-03 19:46:58,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 609.8823529411765) internal successors, (10368), 17 states have internal predecessors, (10368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:46:58,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:46:58,641 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:46:58,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-03 19:46:58,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:58,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:46:58,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:46:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1911642339, now seen corresponding path program 3 times [2023-08-03 19:46:58,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:46:58,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582162586] [2023-08-03 19:46:58,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:46:58,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:46:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:46:59,548 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-08-03 19:46:59,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:46:59,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582162586] [2023-08-03 19:46:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582162586] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-03 19:46:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927222059] [2023-08-03 19:46:59,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-03 19:46:59,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:46:59,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 19:46:59,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-03 19:46:59,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-03 19:47:17,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-08-03 19:47:17,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-03 19:47:17,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 14 conjunts are in the unsatisfiable core [2023-08-03 19:47:17,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-03 19:47:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-08-03 19:47:17,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-03 19:47:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-08-03 19:47:18,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927222059] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-03 19:47:18,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-03 19:47:18,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2023-08-03 19:47:18,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590207352] [2023-08-03 19:47:18,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-03 19:47:18,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-03 19:47:18,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:47:18,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-03 19:47:18,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=468, Invalid=722, Unknown=0, NotChecked=0, Total=1190 [2023-08-03 19:47:20,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 1658 [2023-08-03 19:47:20,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 151 transitions, 850 flow. Second operand has 35 states, 35 states have (on average 608.8) internal successors, (21308), 35 states have internal predecessors, (21308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:20,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:47:20,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 1658 [2023-08-03 19:47:20,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 19:47:27,506 INFO L124 PetriNetUnfolderBase]: 6115/7926 cut-off events. [2023-08-03 19:47:27,506 INFO L125 PetriNetUnfolderBase]: For 357/357 co-relation queries the response was YES. [2023-08-03 19:47:27,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16239 conditions, 7926 events. 6115/7926 cut-off events. For 357/357 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 29011 event pairs, 2466 based on Foata normal form. 3/3985 useless extension candidates. Maximal degree in co-relation 16137. Up to 7620 conditions per place. [2023-08-03 19:47:27,533 INFO L140 encePairwiseOnDemand]: 1634/1658 looper letters, 64 selfloop transitions, 90 changer transitions 0/160 dead transitions. [2023-08-03 19:47:27,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 160 transitions, 1212 flow [2023-08-03 19:47:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-03 19:47:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-03 19:47:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 11089 transitions. [2023-08-03 19:47:27,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37156547379707816 [2023-08-03 19:47:27,552 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 11089 transitions. [2023-08-03 19:47:27,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 11089 transitions. [2023-08-03 19:47:27,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 19:47:27,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 11089 transitions. [2023-08-03 19:47:27,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 616.0555555555555) internal successors, (11089), 18 states have internal predecessors, (11089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:27,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 1658.0) internal successors, (31502), 19 states have internal predecessors, (31502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:27,601 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 1658.0) internal successors, (31502), 19 states have internal predecessors, (31502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:27,601 INFO L175 Difference]: Start difference. First operand has 85 places, 151 transitions, 850 flow. Second operand 18 states and 11089 transitions. [2023-08-03 19:47:27,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 160 transitions, 1212 flow [2023-08-03 19:47:27,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 160 transitions, 1086 flow, removed 39 selfloop flow, removed 5 redundant places. [2023-08-03 19:47:27,608 INFO L231 Difference]: Finished difference. Result has 97 places, 160 transitions, 964 flow [2023-08-03 19:47:27,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1658, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=964, PETRI_PLACES=97, PETRI_TRANSITIONS=160} [2023-08-03 19:47:27,609 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2023-08-03 19:47:27,609 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 160 transitions, 964 flow [2023-08-03 19:47:27,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 608.8) internal successors, (21308), 35 states have internal predecessors, (21308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:47:27,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:47:27,613 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:47:27,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-03 19:47:27,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-03 19:47:27,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:47:27,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:47:27,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1662447253, now seen corresponding path program 4 times [2023-08-03 19:47:27,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:47:27,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794551458] [2023-08-03 19:47:27,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:47:27,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:47:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 19:47:28,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 19:47:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 19:47:28,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 19:47:28,716 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 19:47:28,719 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-08-03 19:47:28,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-08-03 19:47:28,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 19:47:28,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 19:47:28,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-03 19:47:28,722 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-08-03 19:47:28,724 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 19:47:28,724 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 19:47:29,169 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-03 19:47:29,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:30,692 INFO L124 PetriNetUnfolderBase]: 1142/5766 cut-off events. [2023-08-03 19:47:30,692 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-03 19:47:30,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 5766 events. 1142/5766 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 46789 event pairs, 22 based on Foata normal form. 0/4868 useless extension candidates. Maximal degree in co-relation 3675. Up to 192 conditions per place. [2023-08-03 19:47:30,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:30,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:30,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 19:47:30,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:30,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:30,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 831 places, 951 transitions, 1992 flow [2023-08-03 19:47:32,316 INFO L124 PetriNetUnfolderBase]: 1142/5766 cut-off events. [2023-08-03 19:47:32,316 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-03 19:47:32,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 5766 events. 1142/5766 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 46789 event pairs, 22 based on Foata normal form. 0/4868 useless extension candidates. Maximal degree in co-relation 3675. Up to 192 conditions per place. [2023-08-03 19:47:32,755 INFO L119 LiptonReduction]: Number of co-enabled transitions 148500 [2023-08-03 19:49:47,733 INFO L134 LiptonReduction]: Checked pairs total: 195425 [2023-08-03 19:49:47,733 INFO L136 LiptonReduction]: Total number of compositions: 1102 [2023-08-03 19:49:47,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 19:49:47,738 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4f42fde7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 19:49:47,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-03 19:49:47,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 19:49:47,776 INFO L124 PetriNetUnfolderBase]: 24/67 cut-off events. [2023-08-03 19:49:47,776 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-03 19:49:47,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 19:49:47,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 19:49:47,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-03 19:49:47,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 19:49:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1734550764, now seen corresponding path program 1 times [2023-08-03 19:49:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 19:49:47,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918900974] [2023-08-03 19:49:47,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 19:49:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 19:49:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 19:49:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-03 19:49:47,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 19:49:47,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918900974] [2023-08-03 19:49:47,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918900974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 19:49:47,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 19:49:47,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 19:49:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926546573] [2023-08-03 19:49:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 19:49:47,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 19:49:47,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 19:49:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 19:49:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 19:49:48,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 2053 [2023-08-03 19:49:48,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 119 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 763.3333333333334) internal successors, (2290), 3 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 19:49:48,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 19:49:48,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 2053 [2023-08-03 19:49:48,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-03 19:57:24,800 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-03 19:57:25,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 19:57:25,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-08-03 19:57:25,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-03 19:57:25,524 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2053 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 857019 conditions, 423447 events (369673/423446 cut-off events. For 25403/25403 co-relation queries the response was YES. Maximal size of possible extension queue 13196. Compared 1705438 event pairs, 174519 based on Foata normal form. 0/201977 useless extension candidates. Maximal degree in co-relation 381155. Up to 418562 conditions per place.). [2023-08-03 19:57:25,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-03 19:57:25,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-08-03 19:57:25,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-08-03 19:57:25,525 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-03 19:57:25,526 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 19:57:25,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 19:57:25,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 07:57:25 BasicIcfg [2023-08-03 19:57:25,529 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 19:57:25,530 INFO L158 Benchmark]: Toolchain (without parser) took 759890.39ms. Allocated memory was 358.6MB in the beginning and 14.9GB in the end (delta: 14.5GB). Free memory was 309.3MB in the beginning and 10.7GB in the end (delta: -10.4GB). Peak memory consumption was 6.9GB. Max. memory is 16.0GB. [2023-08-03 19:57:25,530 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 309.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 19:57:25,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.55ms. Allocated memory is still 358.6MB. Free memory was 309.1MB in the beginning and 283.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-03 19:57:25,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.29ms. Allocated memory is still 358.6MB. Free memory was 283.2MB in the beginning and 271.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-03 19:57:25,531 INFO L158 Benchmark]: Boogie Preprocessor took 191.51ms. Allocated memory was 358.6MB in the beginning and 524.3MB in the end (delta: 165.7MB). Free memory was 271.7MB in the beginning and 481.7MB in the end (delta: -210.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.0GB. [2023-08-03 19:57:25,531 INFO L158 Benchmark]: RCFGBuilder took 4561.73ms. Allocated memory is still 524.3MB. Free memory was 481.7MB in the beginning and 374.5MB in the end (delta: 107.3MB). Peak memory consumption was 341.1MB. Max. memory is 16.0GB. [2023-08-03 19:57:25,531 INFO L158 Benchmark]: TraceAbstraction took 754594.20ms. Allocated memory was 524.3MB in the beginning and 14.9GB in the end (delta: 14.4GB). Free memory was 373.4MB in the beginning and 10.7GB in the end (delta: -10.3GB). Peak memory consumption was 6.8GB. Max. memory is 16.0GB. [2023-08-03 19:57:25,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 309.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 417.55ms. Allocated memory is still 358.6MB. Free memory was 309.1MB in the beginning and 283.2MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 118.29ms. Allocated memory is still 358.6MB. Free memory was 283.2MB in the beginning and 271.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Preprocessor took 191.51ms. Allocated memory was 358.6MB in the beginning and 524.3MB in the end (delta: 165.7MB). Free memory was 271.7MB in the beginning and 481.7MB in the end (delta: -210.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.0GB. * RCFGBuilder took 4561.73ms. Allocated memory is still 524.3MB. Free memory was 481.7MB in the beginning and 374.5MB in the end (delta: 107.3MB). Peak memory consumption was 341.1MB. Max. memory is 16.0GB. * TraceAbstraction took 754594.20ms. Allocated memory was 524.3MB in the beginning and 14.9GB in the end (delta: 14.4GB). Free memory was 373.4MB in the beginning and 10.7GB in the end (delta: -10.3GB). Peak memory consumption was 6.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.0s, 687 PlacesBefore, 57 PlacesAfterwards, 774 TransitionsBefore, 83 TransitionsAfterwards, 43560 CoEnabledTransitionPairs, 7 FixpointIterations, 447 TrivialSequentialCompositions, 211 ConcurrentSequentialCompositions, 101 TrivialYvCompositions, 64 ConcurrentYvCompositions, 61 ChoiceCompositions, 884 TotalNumberOfCompositions, 51985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47543, independent: 47453, independent conditional: 0, independent unconditional: 47453, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23723, independent: 23665, independent conditional: 0, independent unconditional: 23665, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47543, independent: 23788, independent conditional: 0, independent unconditional: 23788, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 23723, unknown conditional: 0, unknown unconditional: 23723] , Statistics on independence cache: Total cache size (in pairs): 287, Positive cache size: 282, Positive conditional cache size: 0, Positive unconditional cache size: 282, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.9s, 831 PlacesBefore, 78 PlacesAfterwards, 951 TransitionsBefore, 119 TransitionsAfterwards, 148500 CoEnabledTransitionPairs, 8 FixpointIterations, 448 TrivialSequentialCompositions, 364 ConcurrentSequentialCompositions, 106 TrivialYvCompositions, 105 ConcurrentYvCompositions, 79 ChoiceCompositions, 1102 TotalNumberOfCompositions, 195425 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170224, independent: 170060, independent conditional: 0, independent unconditional: 170060, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 76199, independent: 76097, independent conditional: 0, independent unconditional: 76097, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170224, independent: 93963, independent conditional: 0, independent unconditional: 93963, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 76199, unknown conditional: 0, unknown unconditional: 76199] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 952, Positive conditional cache size: 0, Positive unconditional cache size: 952, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 341]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2053 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 857019 conditions, 423447 events (369673/423446 cut-off events. For 25403/25403 co-relation queries the response was YES. Maximal size of possible extension queue 13196. Compared 1705438 event pairs, 174519 based on Foata normal form. 0/201977 useless extension candidates. Maximal degree in co-relation 381155. Up to 418562 conditions per place.). - TimeoutResultAtElement [Line: 334]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2053 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 857019 conditions, 423447 events (369673/423446 cut-off events. For 25403/25403 co-relation queries the response was YES. Maximal size of possible extension queue 13196. Compared 1705438 event pairs, 174519 based on Foata normal form. 0/201977 useless extension candidates. Maximal degree in co-relation 381155. Up to 418562 conditions per place.). - TimeoutResultAtElement [Line: 335]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2053 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 857019 conditions, 423447 events (369673/423446 cut-off events. For 25403/25403 co-relation queries the response was YES. Maximal size of possible extension queue 13196. Compared 1705438 event pairs, 174519 based on Foata normal form. 0/201977 useless extension candidates. Maximal degree in co-relation 381155. Up to 418562 conditions per place.). - TimeoutResultAtElement [Line: 333]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (3states, 757/2053 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 857019 conditions, 423447 events (369673/423446 cut-off events. For 25403/25403 co-relation queries the response was YES. Maximal size of possible extension queue 13196. Compared 1705438 event pairs, 174519 based on Foata normal form. 0/201977 useless extension candidates. Maximal degree in co-relation 381155. Up to 418562 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 819 locations, 4 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: 157.3s, OverallIterations: 7, TraceHistogramMax: 13, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 49.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 82.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5220 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4044 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9618 IncrementalHoareTripleChecker+Invalid, 10178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 560 mSolverCounterUnsat, 312 mSDtfsCounter, 9618 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 396 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=964occurred in iteration=6, InterpolantAutomatonStates: 52, 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: 0.3s SsaConstructionTime, 18.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 531 NumberOfCodeBlocks, 531 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 905 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3170 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 928/1127 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 10 procedures, 957 locations, 4 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: 596.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 457.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 138.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 12 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown