/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/pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-19404b3-m [2023-08-03 17:16:47,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-03 17:16:47,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/CAV22/benchmarks/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-03 17:16:47,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-03 17:16:47,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-08-03 17:16:47,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Translation Mode: [2023-08-03 17:16:47,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-03 17:16:47,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-03 17:16:47,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-03 17:16:47,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-03 17:16:47,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-03 17:16:47,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-03 17:16:47,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-03 17:16:47,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-03 17:16:47,255 INFO L153 SettingsManager]: * Use SBE=true [2023-08-03 17:16:47,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-03 17:16:47,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-03 17:16:47,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-03 17:16:47,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-03 17:16:47,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-03 17:16:47,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-03 17:16:47,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-03 17:16:47,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-03 17:16:47,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-03 17:16:47,258 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-03 17:16:47,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-03 17:16:47,259 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-03 17:16:47,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-03 17:16:47,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-03 17:16:47,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-03 17:16:47,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:16:47,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-03 17:16:47,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-03 17:16:47,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-03 17:16:47,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-03 17:16:47,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-03 17:16:47,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-03 17:16:47,262 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-03 17:16:47,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-03 17:16:47,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-03 17:16:47,263 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-03 17:16:47,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> TOGETHER [2023-08-03 17:16:47,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-03 17:16:47,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-03 17:16:47,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-03 17:16:47,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-03 17:16:47,530 INFO L274 PluginConnector]: CDTParser initialized [2023-08-03 17:16:47,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:16:48,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-03 17:16:48,977 INFO L384 CDTParser]: Found 1 translation units. [2023-08-03 17:16:48,978 INFO L180 CDTParser]: Scanning /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:16:48,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220564dfd/9e1ae4c140d548aeb43705d119b848b5/FLAG70bdcec7e [2023-08-03 17:16:49,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220564dfd/9e1ae4c140d548aeb43705d119b848b5 [2023-08-03 17:16:49,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-03 17:16:49,015 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-03 17:16:49,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-03 17:16:49,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-03 17:16:49,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-03 17:16:49,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ce518c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49, skipping insertion in model container [2023-08-03 17:16:49,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,072 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-03 17:16:49,205 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i[995,1008] [2023-08-03 17:16:49,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:16:49,428 INFO L201 MainTranslator]: Completed pre-run [2023-08-03 17:16:49,437 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/CAV22/benchmarks/increased_bounds/pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i[995,1008] [2023-08-03 17:16:49,449 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:16:49,451 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [267] [2023-08-03 17:16:49,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-03 17:16:49,519 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:16:49,519 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-03 17:16:49,524 INFO L206 MainTranslator]: Completed translation [2023-08-03 17:16:49,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49 WrapperNode [2023-08-03 17:16:49,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-03 17:16:49,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-03 17:16:49,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-03 17:16:49,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-03 17:16:49,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,566 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2023-08-03 17:16:49,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-03 17:16:49,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-03 17:16:49,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-03 17:16:49,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-03 17:16:49,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-03 17:16:49,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-03 17:16:49,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-03 17:16:49,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-03 17:16:49,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (1/1) ... [2023-08-03 17:16:49,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-03 17:16:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-03 17:16:49,643 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 17:16:49,652 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 17:16:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-03 17:16:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-03 17:16:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-03 17:16:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-03 17:16:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-03 17:16:49,681 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-03 17:16:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-03 17:16:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-03 17:16:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-03 17:16:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-03 17:16:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-03 17:16:49,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-03 17:16:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-03 17:16:49,684 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 17:16:49,835 INFO L236 CfgBuilder]: Building ICFG [2023-08-03 17:16:49,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-03 17:16:50,185 INFO L277 CfgBuilder]: Performing block encoding [2023-08-03 17:16:50,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-03 17:16:50,294 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-03 17:16:50,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:16:50 BoogieIcfgContainer [2023-08-03 17:16:50,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-03 17:16:50,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-03 17:16:50,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-03 17:16:50,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-03 17:16:50,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.08 05:16:49" (1/3) ... [2023-08-03 17:16:50,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7b43ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:16:50, skipping insertion in model container [2023-08-03 17:16:50,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.08 05:16:49" (2/3) ... [2023-08-03 17:16:50,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7b43ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.08 05:16:50, skipping insertion in model container [2023-08-03 17:16:50,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.08 05:16:50" (3/3) ... [2023-08-03 17:16:50,303 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-wmm_mix022_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt_bound2.i [2023-08-03 17:16:50,310 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-03 17:16:50,319 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-03 17:16:50,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-03 17:16:50,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-03 17:16:50,364 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:16:50,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,461 INFO L124 PetriNetUnfolderBase]: 14/219 cut-off events. [2023-08-03 17:16:50,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:16:50,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 219 events. 14/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 607 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 130. Up to 8 conditions per place. [2023-08-03 17:16:50,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,473 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:16:50,481 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,483 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 103 transitions, 216 flow [2023-08-03 17:16:50,525 INFO L124 PetriNetUnfolderBase]: 14/219 cut-off events. [2023-08-03 17:16:50,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:16:50,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 219 events. 14/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 607 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 130. Up to 8 conditions per place. [2023-08-03 17:16:50,533 INFO L119 LiptonReduction]: Number of co-enabled transitions 1552 [2023-08-03 17:16:53,374 INFO L134 LiptonReduction]: Checked pairs total: 3779 [2023-08-03 17:16:53,374 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-08-03 17:16:53,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:16:53,392 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;@38b5d1ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:16:53,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-03 17:16:53,397 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:16:53,397 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-08-03 17:16:53,398 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:16:53,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:16:53,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:16:53,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:16:53,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:16:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 14330959, now seen corresponding path program 1 times [2023-08-03 17:16:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:16:53,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549827179] [2023-08-03 17:16:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:16:53,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:16:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:16:53,825 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 17:16:53,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:16:53,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549827179] [2023-08-03 17:16:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549827179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:16:53,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:16:53,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:16:53,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113193138] [2023-08-03 17:16:53,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:16:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:16:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:16:53,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:16:53,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:16:53,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 194 [2023-08-03 17:16:53,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 17:16:53,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:16:53,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 194 [2023-08-03 17:16:53,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:16:54,098 INFO L124 PetriNetUnfolderBase]: 249/521 cut-off events. [2023-08-03 17:16:54,098 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-03 17:16:54,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 521 events. 249/521 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2572 event pairs, 48 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 859. Up to 334 conditions per place. [2023-08-03 17:16:54,107 INFO L140 encePairwiseOnDemand]: 190/194 looper letters, 29 selfloop transitions, 2 changer transitions 2/37 dead transitions. [2023-08-03 17:16:54,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 153 flow [2023-08-03 17:16:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:16:54,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:16:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2023-08-03 17:16:54,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.520618556701031 [2023-08-03 17:16:54,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2023-08-03 17:16:54,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2023-08-03 17:16:54,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:16:54,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2023-08-03 17:16:54,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 17:16:54,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 17:16:54,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 17:16:54,145 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 60 flow. Second operand 3 states and 303 transitions. [2023-08-03 17:16:54,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 153 flow [2023-08-03 17:16:54,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 153 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-03 17:16:54,149 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 58 flow [2023-08-03 17:16:54,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-03 17:16:54,154 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-03 17:16:54,154 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 58 flow [2023-08-03 17:16:54,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 17:16:54,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:16:54,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 17:16:54,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-03 17:16:54,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:16:54,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:16:54,157 INFO L85 PathProgramCache]: Analyzing trace with hash 443972541, now seen corresponding path program 1 times [2023-08-03 17:16:54,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:16:54,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113690408] [2023-08-03 17:16:54,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:16:54,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:16:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:16:54,226 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 17:16:54,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:16:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113690408] [2023-08-03 17:16:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113690408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:16:54,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:16:54,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:16:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074288664] [2023-08-03 17:16:54,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:16:54,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:16:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:16:54,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:16:54,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:16:54,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 194 [2023-08-03 17:16:54,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:16:54,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:16:54,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 194 [2023-08-03 17:16:54,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:16:54,320 INFO L124 PetriNetUnfolderBase]: 191/366 cut-off events. [2023-08-03 17:16:54,321 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-03 17:16:54,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 781 conditions, 366 events. 191/366 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1583 event pairs, 80 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 759. Up to 340 conditions per place. [2023-08-03 17:16:54,324 INFO L140 encePairwiseOnDemand]: 191/194 looper letters, 20 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-03 17:16:54,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 112 flow [2023-08-03 17:16:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:16:54,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:16:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2023-08-03 17:16:54,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48281786941580757 [2023-08-03 17:16:54,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 281 transitions. [2023-08-03 17:16:54,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 281 transitions. [2023-08-03 17:16:54,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:16:54,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 281 transitions. [2023-08-03 17:16:54,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 17:16:54,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 17:16:54,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 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 17:16:54,332 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 58 flow. Second operand 3 states and 281 transitions. [2023-08-03 17:16:54,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 112 flow [2023-08-03 17:16:54,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-03 17:16:54,336 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 62 flow [2023-08-03 17:16:54,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=194, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-08-03 17:16:54,340 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-03 17:16:54,341 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 62 flow [2023-08-03 17:16:54,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-03 17:16:54,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:16:54,341 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-03 17:16:54,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-03 17:16:54,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-03 17:16:54,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:16:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash 887208367, now seen corresponding path program 1 times [2023-08-03 17:16:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:16:54,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838404610] [2023-08-03 17:16:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:16:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:16:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:16:54,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:16:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:16:54,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:16:54,393 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:16:54,394 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-08-03 17:16:54,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-03 17:16:54,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-08-03 17:16:54,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-03 17:16:54,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-03 17:16:54,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-03 17:16:54,397 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:16:54,399 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-03 17:16:54,399 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-03 17:16:54,427 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-03 17:16:54,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,485 INFO L124 PetriNetUnfolderBase]: 30/453 cut-off events. [2023-08-03 17:16:54,485 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-03 17:16:54,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 453 events. 30/453 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1917 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 328. Up to 18 conditions per place. [2023-08-03 17:16:54,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,489 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-03 17:16:54,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,489 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 266 flow [2023-08-03 17:16:54,532 INFO L124 PetriNetUnfolderBase]: 30/453 cut-off events. [2023-08-03 17:16:54,532 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-03 17:16:54,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 453 events. 30/453 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1917 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 328. Up to 18 conditions per place. [2023-08-03 17:16:54,539 INFO L119 LiptonReduction]: Number of co-enabled transitions 3680 [2023-08-03 17:16:57,318 INFO L134 LiptonReduction]: Checked pairs total: 11043 [2023-08-03 17:16:57,318 INFO L136 LiptonReduction]: Total number of compositions: 98 [2023-08-03 17:16:57,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-03 17:16:57,321 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;@38b5d1ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-03 17:16:57,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-03 17:16:57,323 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-03 17:16:57,324 INFO L124 PetriNetUnfolderBase]: 1/12 cut-off events. [2023-08-03 17:16:57,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-03 17:16:57,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:16:57,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-03 17:16:57,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:16:57,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:16:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash 21655353, now seen corresponding path program 1 times [2023-08-03 17:16:57,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:16:57,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157440474] [2023-08-03 17:16:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:16:57,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:16:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:16:57,382 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 17:16:57,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:16:57,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157440474] [2023-08-03 17:16:57,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157440474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:16:57,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:16:57,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-03 17:16:57,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069984237] [2023-08-03 17:16:57,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:16:57,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:16:57,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:16:57,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:16:57,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:16:57,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 219 [2023-08-03 17:16:57,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 17:16:57,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:16:57,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 219 [2023-08-03 17:16:57,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:16:59,887 INFO L124 PetriNetUnfolderBase]: 15750/23105 cut-off events. [2023-08-03 17:16:59,888 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2023-08-03 17:16:59,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45266 conditions, 23105 events. 15750/23105 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 152719 event pairs, 3042 based on Foata normal form. 0/20038 useless extension candidates. Maximal degree in co-relation 38498. Up to 20155 conditions per place. [2023-08-03 17:17:00,053 INFO L140 encePairwiseOnDemand]: 213/219 looper letters, 49 selfloop transitions, 3 changer transitions 0/60 dead transitions. [2023-08-03 17:17:00,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 60 transitions, 261 flow [2023-08-03 17:17:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:17:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:17:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2023-08-03 17:17:00,055 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5418569254185692 [2023-08-03 17:17:00,055 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2023-08-03 17:17:00,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2023-08-03 17:17:00,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:17:00,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2023-08-03 17:17:00,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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 17:17:00,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 17:17:00,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 17:17:00,058 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 102 flow. Second operand 3 states and 356 transitions. [2023-08-03 17:17:00,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 60 transitions, 261 flow [2023-08-03 17:17:00,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 257 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-03 17:17:00,061 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 117 flow [2023-08-03 17:17:00,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2023-08-03 17:17:00,062 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2023-08-03 17:17:00,062 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 117 flow [2023-08-03 17:17:00,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 17:17:00,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:17:00,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-03 17:17:00,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-03 17:17:00,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:17:00,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:17:00,063 INFO L85 PathProgramCache]: Analyzing trace with hash 671066313, now seen corresponding path program 1 times [2023-08-03 17:17:00,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:17:00,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575669615] [2023-08-03 17:17:00,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:17:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:17:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-03 17:17:00,106 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 17:17:00,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-03 17:17:00,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575669615] [2023-08-03 17:17:00,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575669615] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-03 17:17:00,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-03 17:17:00,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-03 17:17:00,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770185907] [2023-08-03 17:17:00,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-03 17:17:00,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-03 17:17:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-03 17:17:00,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-03 17:17:00,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-03 17:17:00,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 219 [2023-08-03 17:17:00,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 17:17:00,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-03 17:17:00,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 219 [2023-08-03 17:17:00,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-03 17:17:02,539 INFO L124 PetriNetUnfolderBase]: 15466/22255 cut-off events. [2023-08-03 17:17:02,539 INFO L125 PetriNetUnfolderBase]: For 2352/2352 co-relation queries the response was YES. [2023-08-03 17:17:02,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47906 conditions, 22255 events. 15466/22255 cut-off events. For 2352/2352 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 138468 event pairs, 11746 based on Foata normal form. 0/19101 useless extension candidates. Maximal degree in co-relation 31043. Up to 21157 conditions per place. [2023-08-03 17:17:02,756 INFO L140 encePairwiseOnDemand]: 216/219 looper letters, 35 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-08-03 17:17:02,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 204 flow [2023-08-03 17:17:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-03 17:17:02,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-03 17:17:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2023-08-03 17:17:02,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4977168949771689 [2023-08-03 17:17:02,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2023-08-03 17:17:02,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2023-08-03 17:17:02,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-03 17:17:02,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2023-08-03 17:17:02,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 17:17:02,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 17:17:02,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 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 17:17:02,762 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 117 flow. Second operand 3 states and 327 transitions. [2023-08-03 17:17:02,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 204 flow [2023-08-03 17:17:02,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 45 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-03 17:17:02,764 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 126 flow [2023-08-03 17:17:02,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-08-03 17:17:02,766 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2023-08-03 17:17:02,766 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 126 flow [2023-08-03 17:17:02,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 17:17:02,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-03 17:17:02,767 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-03 17:17:02,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-03 17:17:02,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-08-03 17:17:02,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-03 17:17:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 677429396, now seen corresponding path program 1 times [2023-08-03 17:17:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-03 17:17:02,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580816844] [2023-08-03 17:17:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-03 17:17:02,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-03 17:17:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:17:02,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-03 17:17:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-03 17:17:02,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-03 17:17:02,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-03 17:17:02,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-08-03 17:17:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-08-03 17:17:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-08-03 17:17:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2023-08-03 17:17:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-08-03 17:17:02,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-08-03 17:17:02,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-03 17:17:02,818 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-03 17:17:02,823 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-03 17:17:02,823 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-03 17:17:02,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.08 05:17:02 BasicIcfg [2023-08-03 17:17:02,883 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-03 17:17:02,883 INFO L158 Benchmark]: Toolchain (without parser) took 13868.51ms. Allocated memory was 423.6MB in the beginning and 1.0GB in the end (delta: 606.1MB). Free memory was 375.6MB in the beginning and 737.5MB in the end (delta: -361.9MB). Peak memory consumption was 245.6MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,884 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 339.7MB. Free memory is still 292.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-03 17:17:02,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.06ms. Allocated memory is still 423.6MB. Free memory was 375.6MB in the beginning and 352.8MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.72ms. Allocated memory is still 423.6MB. Free memory was 352.5MB in the beginning and 350.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,884 INFO L158 Benchmark]: Boogie Preprocessor took 32.87ms. Allocated memory is still 423.6MB. Free memory was 350.1MB in the beginning and 348.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,884 INFO L158 Benchmark]: RCFGBuilder took 687.13ms. Allocated memory is still 423.6MB. Free memory was 348.3MB in the beginning and 365.8MB in the end (delta: -17.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,887 INFO L158 Benchmark]: TraceAbstraction took 12585.47ms. Allocated memory was 423.6MB in the beginning and 1.0GB in the end (delta: 606.1MB). Free memory was 365.8MB in the beginning and 737.5MB in the end (delta: -371.7MB). Peak memory consumption was 234.9MB. Max. memory is 16.0GB. [2023-08-03 17:17:02,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 339.7MB. Free memory is still 292.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 509.06ms. Allocated memory is still 423.6MB. Free memory was 375.6MB in the beginning and 352.8MB in the end (delta: 22.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.72ms. Allocated memory is still 423.6MB. Free memory was 352.5MB in the beginning and 350.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.87ms. Allocated memory is still 423.6MB. Free memory was 350.1MB in the beginning and 348.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 687.13ms. Allocated memory is still 423.6MB. Free memory was 348.3MB in the beginning and 365.8MB in the end (delta: -17.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.0GB. * TraceAbstraction took 12585.47ms. Allocated memory was 423.6MB in the beginning and 1.0GB in the end (delta: 606.1MB). Free memory was 365.8MB in the beginning and 737.5MB in the end (delta: -371.7MB). Peak memory consumption was 234.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] - GenericResultAtLocation [Line: 267]: Unsoundness Warning unspecified type, defaulting to int C: short [267] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 104 PlacesBefore, 29 PlacesAfterwards, 103 TransitionsBefore, 25 TransitionsAfterwards, 1552 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 91 TotalNumberOfCompositions, 3779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1866, independent: 1736, independent conditional: 0, independent unconditional: 1736, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 847, independent: 809, independent conditional: 0, independent unconditional: 809, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1866, independent: 927, independent conditional: 0, independent unconditional: 927, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 847, unknown conditional: 0, unknown unconditional: 847] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 126 PlacesBefore, 47 PlacesAfterwards, 121 TransitionsBefore, 39 TransitionsAfterwards, 3680 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 98 TotalNumberOfCompositions, 11043 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4239, independent: 4006, independent conditional: 0, independent unconditional: 4006, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1865, independent: 1811, independent conditional: 0, independent unconditional: 1811, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4239, independent: 2195, independent conditional: 0, independent unconditional: 2195, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 1865, unknown conditional: 0, unknown unconditional: 1865] , Statistics on independence cache: Total cache size (in pairs): 204, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t585[2]; [L811] 0 int asdf=0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, t585={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L811] COND TRUE 0 asdf<2 [L811] FCALL, FORK 0 pthread_create(&t585[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t585[asdf], ((void *)0), P0, ((void *)0))=-1, t585={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L811] 0 asdf++ VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, t585={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L811] COND TRUE 0 asdf<2 [L811] FCALL, FORK 0 pthread_create(&t585[asdf], ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, asdf=1, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t585[asdf], ((void *)0), P0, ((void *)0))=0, t585={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L738] 2 y$w_buff1 = y$w_buff0 [L739] 2 y$w_buff0 = 1 [L740] 2 y$w_buff1_used = y$w_buff0_used [L741] 2 y$w_buff0_used = (_Bool)1 [L742] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND TRUE 2 !expression [L18] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 118 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 136 locations, 6 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: 8.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2023-08-03 17:17:02,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...