./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 15:33:18,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 15:33:18,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 15:33:18,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 15:33:18,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 15:33:18,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 15:33:18,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 15:33:18,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 15:33:18,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 15:33:18,860 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 15:33:18,860 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 15:33:18,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 15:33:18,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 15:33:18,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 15:33:18,862 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 15:33:18,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 15:33:18,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 15:33:18,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 15:33:18,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 15:33:18,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 15:33:18,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 15:33:18,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 15:33:18,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 15:33:18,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 15:33:18,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 15:33:18,865 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 15:33:18,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 15:33:18,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 15:33:18,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 15:33:18,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 15:33:18,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 15:33:18,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 15:33:18,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:33:18,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 15:33:18,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 15:33:18,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 15:33:18,868 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 15:33:18,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 15:33:18,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 15:33:18,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 15:33:18,868 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 15:33:18,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 15:33:18,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 15:33:18,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 [2024-01-27 15:33:19,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 15:33:19,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 15:33:19,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 15:33:19,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 15:33:19,086 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 15:33:19,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-27 15:33:20,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 15:33:20,357 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 15:33:20,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-27 15:33:20,366 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3a9dbed1/9b244840ef6e42abb41197f2ac21ad15/FLAG365e84227 [2024-01-27 15:33:20,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3a9dbed1/9b244840ef6e42abb41197f2ac21ad15 [2024-01-27 15:33:20,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 15:33:20,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 15:33:20,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 15:33:20,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 15:33:20,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 15:33:20,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13afcc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20, skipping insertion in model container [2024-01-27 15:33:20,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 15:33:20,554 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-01-27 15:33:20,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:33:20,563 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 15:33:20,579 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3128,3141] [2024-01-27 15:33:20,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 15:33:20,596 INFO L206 MainTranslator]: Completed translation [2024-01-27 15:33:20,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20 WrapperNode [2024-01-27 15:33:20,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 15:33:20,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 15:33:20,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 15:33:20,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 15:33:20,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,654 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 167 [2024-01-27 15:33:20,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 15:33:20,660 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 15:33:20,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 15:33:20,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 15:33:20,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,681 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-27 15:33:20,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 15:33:20,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 15:33:20,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 15:33:20,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 15:33:20,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (1/1) ... [2024-01-27 15:33:20,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 15:33:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 15:33:20,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 15:33:20,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 15:33:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 15:33:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 15:33:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 15:33:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 15:33:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 15:33:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 15:33:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 15:33:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 15:33:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 15:33:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 15:33:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 15:33:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 15:33:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 15:33:20,764 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 15:33:20,839 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 15:33:20,840 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 15:33:21,032 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 15:33:21,032 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 15:33:21,249 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 15:33:21,249 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 15:33:21,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:33:21 BoogieIcfgContainer [2024-01-27 15:33:21,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 15:33:21,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 15:33:21,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 15:33:21,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 15:33:21,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 03:33:20" (1/3) ... [2024-01-27 15:33:21,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1f4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:33:21, skipping insertion in model container [2024-01-27 15:33:21,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 03:33:20" (2/3) ... [2024-01-27 15:33:21,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1f4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 03:33:21, skipping insertion in model container [2024-01-27 15:33:21,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:33:21" (3/3) ... [2024-01-27 15:33:21,256 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-01-27 15:33:21,262 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 15:33:21,268 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 15:33:21,269 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-27 15:33:21,269 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 15:33:21,312 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-27 15:33:21,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 95 flow [2024-01-27 15:33:21,380 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-01-27 15:33:21,381 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 15:33:21,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 0/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 15:33:21,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 37 transitions, 95 flow [2024-01-27 15:33:21,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 84 flow [2024-01-27 15:33:21,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 15:33:21,405 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53afa7a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 15:33:21,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-27 15:33:21,425 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 15:33:21,426 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-01-27 15:33:21,426 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 15:33:21,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:21,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:21,427 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)] === [2024-01-27 15:33:21,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:21,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1357286859, now seen corresponding path program 1 times [2024-01-27 15:33:21,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:21,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845438552] [2024-01-27 15:33:21,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:21,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:22,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:22,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845438552] [2024-01-27 15:33:22,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845438552] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:22,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:22,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:33:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281384653] [2024-01-27 15:33:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:22,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:33:22,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:33:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:33:22,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-01-27 15:33:22,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:22,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:22,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-01-27 15:33:22,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:22,749 INFO L124 PetriNetUnfolderBase]: 1823/2829 cut-off events. [2024-01-27 15:33:22,749 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-01-27 15:33:22,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5854 conditions, 2829 events. 1823/2829 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14000 event pairs, 710 based on Foata normal form. 1/2826 useless extension candidates. Maximal degree in co-relation 5128. Up to 1233 conditions per place. [2024-01-27 15:33:22,766 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 60 selfloop transitions, 7 changer transitions 10/81 dead transitions. [2024-01-27 15:33:22,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 81 transitions, 355 flow [2024-01-27 15:33:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:33:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:33:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-01-27 15:33:22,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6108108108108108 [2024-01-27 15:33:22,778 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 84 flow. Second operand 5 states and 113 transitions. [2024-01-27 15:33:22,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 81 transitions, 355 flow [2024-01-27 15:33:22,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 81 transitions, 329 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-27 15:33:22,788 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 110 flow [2024-01-27 15:33:22,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2024-01-27 15:33:22,792 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-01-27 15:33:22,793 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 110 flow [2024-01-27 15:33:22,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:22,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:22,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:22,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 15:33:22,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:22,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:22,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1490189187, now seen corresponding path program 2 times [2024-01-27 15:33:22,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:22,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510380953] [2024-01-27 15:33:22,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:22,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:22,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:22,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510380953] [2024-01-27 15:33:22,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510380953] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:22,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:33:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193044481] [2024-01-27 15:33:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:22,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:33:22,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:22,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:33:22,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:33:22,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:22,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:22,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:22,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:23,099 INFO L124 PetriNetUnfolderBase]: 934/1672 cut-off events. [2024-01-27 15:33:23,099 INFO L125 PetriNetUnfolderBase]: For 86/88 co-relation queries the response was YES. [2024-01-27 15:33:23,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 1672 events. 934/1672 cut-off events. For 86/88 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9242 event pairs, 216 based on Foata normal form. 8/1653 useless extension candidates. Maximal degree in co-relation 2548. Up to 624 conditions per place. [2024-01-27 15:33:23,108 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 58 selfloop transitions, 19 changer transitions 0/90 dead transitions. [2024-01-27 15:33:23,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 90 transitions, 379 flow [2024-01-27 15:33:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 15:33:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 15:33:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2024-01-27 15:33:23,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-01-27 15:33:23,110 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 110 flow. Second operand 6 states and 144 transitions. [2024-01-27 15:33:23,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 90 transitions, 379 flow [2024-01-27 15:33:23,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 90 transitions, 372 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-27 15:33:23,113 INFO L231 Difference]: Finished difference. Result has 48 places, 52 transitions, 180 flow [2024-01-27 15:33:23,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=48, PETRI_TRANSITIONS=52} [2024-01-27 15:33:23,114 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-01-27 15:33:23,114 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 52 transitions, 180 flow [2024-01-27 15:33:23,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:23,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:23,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:23,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 15:33:23,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:23,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:23,115 INFO L85 PathProgramCache]: Analyzing trace with hash 904220851, now seen corresponding path program 3 times [2024-01-27 15:33:23,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:23,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525693775] [2024-01-27 15:33:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:23,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:23,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:23,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525693775] [2024-01-27 15:33:23,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525693775] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:23,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:23,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:33:23,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80731964] [2024-01-27 15:33:23,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:23,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:33:23,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:33:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:33:23,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-01-27 15:33:23,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 52 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:23,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:23,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-01-27 15:33:23,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:23,739 INFO L124 PetriNetUnfolderBase]: 2345/3751 cut-off events. [2024-01-27 15:33:23,740 INFO L125 PetriNetUnfolderBase]: For 1272/1272 co-relation queries the response was YES. [2024-01-27 15:33:23,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9401 conditions, 3751 events. 2345/3751 cut-off events. For 1272/1272 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 20152 event pairs, 779 based on Foata normal form. 2/3749 useless extension candidates. Maximal degree in co-relation 2367. Up to 1588 conditions per place. [2024-01-27 15:33:23,752 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 99 selfloop transitions, 9 changer transitions 23/135 dead transitions. [2024-01-27 15:33:23,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 135 transitions, 727 flow [2024-01-27 15:33:23,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 15:33:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 15:33:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-01-27 15:33:23,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990990990990991 [2024-01-27 15:33:23,755 INFO L175 Difference]: Start difference. First operand has 48 places, 52 transitions, 180 flow. Second operand 6 states and 133 transitions. [2024-01-27 15:33:23,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 135 transitions, 727 flow [2024-01-27 15:33:23,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 135 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 15:33:23,759 INFO L231 Difference]: Finished difference. Result has 55 places, 54 transitions, 224 flow [2024-01-27 15:33:23,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=55, PETRI_TRANSITIONS=54} [2024-01-27 15:33:23,760 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-01-27 15:33:23,760 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 54 transitions, 224 flow [2024-01-27 15:33:23,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:23,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:23,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:23,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 15:33:23,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:23,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash 24148193, now seen corresponding path program 4 times [2024-01-27 15:33:23,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119871140] [2024-01-27 15:33:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:23,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:23,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119871140] [2024-01-27 15:33:23,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119871140] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:23,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:23,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:33:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208420492] [2024-01-27 15:33:23,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:23,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:33:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:23,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:33:23,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:33:23,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:23,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 54 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:23,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:23,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:23,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:24,053 INFO L124 PetriNetUnfolderBase]: 1074/1937 cut-off events. [2024-01-27 15:33:24,053 INFO L125 PetriNetUnfolderBase]: For 964/994 co-relation queries the response was YES. [2024-01-27 15:33:24,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 1937 events. 1074/1937 cut-off events. For 964/994 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10856 event pairs, 314 based on Foata normal form. 45/1959 useless extension candidates. Maximal degree in co-relation 3377. Up to 643 conditions per place. [2024-01-27 15:33:24,063 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 58 selfloop transitions, 21 changer transitions 4/98 dead transitions. [2024-01-27 15:33:24,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 518 flow [2024-01-27 15:33:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:33:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:33:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-01-27 15:33:24,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6864864864864865 [2024-01-27 15:33:24,064 INFO L175 Difference]: Start difference. First operand has 55 places, 54 transitions, 224 flow. Second operand 5 states and 127 transitions. [2024-01-27 15:33:24,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 518 flow [2024-01-27 15:33:24,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 98 transitions, 486 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-01-27 15:33:24,068 INFO L231 Difference]: Finished difference. Result has 55 places, 65 transitions, 315 flow [2024-01-27 15:33:24,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=315, PETRI_PLACES=55, PETRI_TRANSITIONS=65} [2024-01-27 15:33:24,069 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-01-27 15:33:24,069 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 65 transitions, 315 flow [2024-01-27 15:33:24,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:24,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:24,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 15:33:24,070 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:24,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:24,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1410206501, now seen corresponding path program 5 times [2024-01-27 15:33:24,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:24,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792300287] [2024-01-27 15:33:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:24,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792300287] [2024-01-27 15:33:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792300287] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:24,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:24,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:33:24,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852058188] [2024-01-27 15:33:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:24,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:33:24,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:33:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:33:24,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:24,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 65 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:24,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:24,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:24,336 INFO L124 PetriNetUnfolderBase]: 1020/1883 cut-off events. [2024-01-27 15:33:24,336 INFO L125 PetriNetUnfolderBase]: For 1841/1853 co-relation queries the response was YES. [2024-01-27 15:33:24,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5333 conditions, 1883 events. 1020/1883 cut-off events. For 1841/1853 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10779 event pairs, 308 based on Foata normal form. 40/1902 useless extension candidates. Maximal degree in co-relation 2323. Up to 645 conditions per place. [2024-01-27 15:33:24,347 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 56 selfloop transitions, 22 changer transitions 5/98 dead transitions. [2024-01-27 15:33:24,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 580 flow [2024-01-27 15:33:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:33:24,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:33:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2024-01-27 15:33:24,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2024-01-27 15:33:24,348 INFO L175 Difference]: Start difference. First operand has 55 places, 65 transitions, 315 flow. Second operand 5 states and 125 transitions. [2024-01-27 15:33:24,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 580 flow [2024-01-27 15:33:24,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 15:33:24,353 INFO L231 Difference]: Finished difference. Result has 60 places, 66 transitions, 374 flow [2024-01-27 15:33:24,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=66} [2024-01-27 15:33:24,353 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-01-27 15:33:24,353 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 66 transitions, 374 flow [2024-01-27 15:33:24,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:24,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:24,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 15:33:24,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:24,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:24,355 INFO L85 PathProgramCache]: Analyzing trace with hash -592246379, now seen corresponding path program 6 times [2024-01-27 15:33:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:24,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724576940] [2024-01-27 15:33:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:24,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:24,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724576940] [2024-01-27 15:33:24,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724576940] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:24,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:24,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 15:33:24,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147134680] [2024-01-27 15:33:24,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:24,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 15:33:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:24,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 15:33:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 15:33:24,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:24,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 66 transitions, 374 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:24,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:24,544 INFO L124 PetriNetUnfolderBase]: 414/802 cut-off events. [2024-01-27 15:33:24,544 INFO L125 PetriNetUnfolderBase]: For 1041/1049 co-relation queries the response was YES. [2024-01-27 15:33:24,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 802 events. 414/802 cut-off events. For 1041/1049 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3628 event pairs, 124 based on Foata normal form. 48/850 useless extension candidates. Maximal degree in co-relation 1584. Up to 247 conditions per place. [2024-01-27 15:33:24,548 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 46 selfloop transitions, 21 changer transitions 4/81 dead transitions. [2024-01-27 15:33:24,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 535 flow [2024-01-27 15:33:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 15:33:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 15:33:24,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-01-27 15:33:24,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6324324324324324 [2024-01-27 15:33:24,565 INFO L175 Difference]: Start difference. First operand has 60 places, 66 transitions, 374 flow. Second operand 5 states and 117 transitions. [2024-01-27 15:33:24,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 535 flow [2024-01-27 15:33:24,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 81 transitions, 490 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-01-27 15:33:24,568 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 325 flow [2024-01-27 15:33:24,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2024-01-27 15:33:24,569 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-01-27 15:33:24,569 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 325 flow [2024-01-27 15:33:24,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:24,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:24,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 15:33:24,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:24,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash -336101195, now seen corresponding path program 7 times [2024-01-27 15:33:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375777510] [2024-01-27 15:33:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:24,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:24,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:24,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375777510] [2024-01-27 15:33:24,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375777510] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:24,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:24,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 15:33:24,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428825044] [2024-01-27 15:33:24,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:24,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 15:33:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 15:33:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-27 15:33:24,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:24,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:24,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:24,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:24,767 INFO L124 PetriNetUnfolderBase]: 370/734 cut-off events. [2024-01-27 15:33:24,767 INFO L125 PetriNetUnfolderBase]: For 966/970 co-relation queries the response was YES. [2024-01-27 15:33:24,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2136 conditions, 734 events. 370/734 cut-off events. For 966/970 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3195 event pairs, 66 based on Foata normal form. 12/742 useless extension candidates. Maximal degree in co-relation 1180. Up to 230 conditions per place. [2024-01-27 15:33:24,771 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 51 selfloop transitions, 24 changer transitions 4/89 dead transitions. [2024-01-27 15:33:24,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 89 transitions, 571 flow [2024-01-27 15:33:24,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 15:33:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 15:33:24,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-01-27 15:33:24,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6171171171171171 [2024-01-27 15:33:24,772 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 325 flow. Second operand 6 states and 137 transitions. [2024-01-27 15:33:24,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 89 transitions, 571 flow [2024-01-27 15:33:24,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 89 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 15:33:24,775 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 338 flow [2024-01-27 15:33:24,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-01-27 15:33:24,775 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-01-27 15:33:24,776 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 338 flow [2024-01-27 15:33:24,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:24,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:24,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 15:33:24,776 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:24,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:24,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1185897815, now seen corresponding path program 8 times [2024-01-27 15:33:24,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:24,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403567595] [2024-01-27 15:33:24,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:24,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403567595] [2024-01-27 15:33:24,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403567595] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:24,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:24,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:33:24,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056937796] [2024-01-27 15:33:24,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:24,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:33:24,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:24,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:33:24,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:33:24,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:24,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:24,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:24,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:24,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:24,996 INFO L124 PetriNetUnfolderBase]: 346/688 cut-off events. [2024-01-27 15:33:24,997 INFO L125 PetriNetUnfolderBase]: For 1225/1228 co-relation queries the response was YES. [2024-01-27 15:33:24,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2099 conditions, 688 events. 346/688 cut-off events. For 1225/1228 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2990 event pairs, 64 based on Foata normal form. 10/694 useless extension candidates. Maximal degree in co-relation 1120. Up to 196 conditions per place. [2024-01-27 15:33:25,000 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 49 selfloop transitions, 22 changer transitions 9/90 dead transitions. [2024-01-27 15:33:25,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 90 transitions, 596 flow [2024-01-27 15:33:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:33:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:33:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 163 transitions. [2024-01-27 15:33:25,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5506756756756757 [2024-01-27 15:33:25,002 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 338 flow. Second operand 8 states and 163 transitions. [2024-01-27 15:33:25,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 90 transitions, 596 flow [2024-01-27 15:33:25,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 550 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-27 15:33:25,005 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 321 flow [2024-01-27 15:33:25,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=321, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2024-01-27 15:33:25,005 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-01-27 15:33:25,006 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 321 flow [2024-01-27 15:33:25,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:25,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:25,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:25,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 15:33:25,006 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:25,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash -626688443, now seen corresponding path program 9 times [2024-01-27 15:33:25,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:25,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609610439] [2024-01-27 15:33:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:25,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:25,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:25,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609610439] [2024-01-27 15:33:25,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609610439] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:25,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:25,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:33:25,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630126959] [2024-01-27 15:33:25,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:25,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:33:25,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:33:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:33:25,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:25,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 321 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:25,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:25,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:25,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:25,222 INFO L124 PetriNetUnfolderBase]: 266/544 cut-off events. [2024-01-27 15:33:25,222 INFO L125 PetriNetUnfolderBase]: For 936/940 co-relation queries the response was YES. [2024-01-27 15:33:25,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 544 events. 266/544 cut-off events. For 936/940 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2220 event pairs, 46 based on Foata normal form. 36/580 useless extension candidates. Maximal degree in co-relation 1052. Up to 134 conditions per place. [2024-01-27 15:33:25,225 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 41 selfloop transitions, 12 changer transitions 26/87 dead transitions. [2024-01-27 15:33:25,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 87 transitions, 570 flow [2024-01-27 15:33:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:33:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:33:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-01-27 15:33:25,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5540540540540541 [2024-01-27 15:33:25,226 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 321 flow. Second operand 8 states and 164 transitions. [2024-01-27 15:33:25,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 87 transitions, 570 flow [2024-01-27 15:33:25,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 87 transitions, 520 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-01-27 15:33:25,229 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 205 flow [2024-01-27 15:33:25,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=205, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2024-01-27 15:33:25,230 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-01-27 15:33:25,230 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 205 flow [2024-01-27 15:33:25,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:25,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 15:33:25,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 15:33:25,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 15:33:25,231 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-27 15:33:25,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 15:33:25,231 INFO L85 PathProgramCache]: Analyzing trace with hash -562428533, now seen corresponding path program 10 times [2024-01-27 15:33:25,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 15:33:25,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550314490] [2024-01-27 15:33:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 15:33:25,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 15:33:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 15:33:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 15:33:25,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 15:33:25,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550314490] [2024-01-27 15:33:25,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550314490] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 15:33:25,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 15:33:25,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 15:33:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115246850] [2024-01-27 15:33:25,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 15:33:25,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 15:33:25,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 15:33:25,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 15:33:25,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-27 15:33:25,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-01-27 15:33:25,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:25,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 15:33:25,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-01-27 15:33:25,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 15:33:25,398 INFO L124 PetriNetUnfolderBase]: 34/90 cut-off events. [2024-01-27 15:33:25,398 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-01-27 15:33:25,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 90 events. 34/90 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 238 event pairs, 4 based on Foata normal form. 16/106 useless extension candidates. Maximal degree in co-relation 326. Up to 20 conditions per place. [2024-01-27 15:33:25,399 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-01-27 15:33:25,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 32 transitions, 214 flow [2024-01-27 15:33:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 15:33:25,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 15:33:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2024-01-27 15:33:25,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3952702702702703 [2024-01-27 15:33:25,400 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 205 flow. Second operand 8 states and 117 transitions. [2024-01-27 15:33:25,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 32 transitions, 214 flow [2024-01-27 15:33:25,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 160 flow, removed 10 selfloop flow, removed 14 redundant places. [2024-01-27 15:33:25,401 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-01-27 15:33:25,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-01-27 15:33:25,402 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-01-27 15:33:25,402 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-01-27 15:33:25,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 15:33:25,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-01-27 15:33:25,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-01-27 15:33:25,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-01-27 15:33:25,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-01-27 15:33:25,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 15:33:25,405 INFO L445 BasicCegarLoop]: Path program histogram: [10] [2024-01-27 15:33:25,408 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 15:33:25,408 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 15:33:25,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 03:33:25 BasicIcfg [2024-01-27 15:33:25,411 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 15:33:25,412 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-01-27 15:33:25,412 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-01-27 15:33:25,412 INFO L274 PluginConnector]: Witness Printer initialized [2024-01-27 15:33:25,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 03:33:21" (3/4) ... [2024-01-27 15:33:25,413 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-01-27 15:33:25,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-01-27 15:33:25,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-01-27 15:33:25,416 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-01-27 15:33:25,419 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2024-01-27 15:33:25,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-01-27 15:33:25,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-01-27 15:33:25,420 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-01-27 15:33:25,474 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-01-27 15:33:25,474 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-01-27 15:33:25,474 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-01-27 15:33:25,475 INFO L158 Benchmark]: Toolchain (without parser) took 5092.73ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 120.3MB in the beginning and 343.1MB in the end (delta: -222.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:33:25,475 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:33:25,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 192.9MB. Free memory was 120.1MB in the beginning and 108.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-01-27 15:33:25,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.47ms. Allocated memory is still 192.9MB. Free memory was 108.3MB in the beginning and 162.0MB in the end (delta: -53.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-01-27 15:33:25,476 INFO L158 Benchmark]: Boogie Preprocessor took 31.88ms. Allocated memory is still 192.9MB. Free memory was 162.0MB in the beginning and 159.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 15:33:25,476 INFO L158 Benchmark]: RCFGBuilder took 557.55ms. Allocated memory is still 192.9MB. Free memory was 159.9MB in the beginning and 111.7MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-01-27 15:33:25,476 INFO L158 Benchmark]: TraceAbstraction took 4160.49ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 110.7MB in the beginning and 347.3MB in the end (delta: -236.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 15:33:25,476 INFO L158 Benchmark]: Witness Printer took 62.83ms. Allocated memory is still 402.7MB. Free memory was 347.3MB in the beginning and 343.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 15:33:25,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 192.9MB. Free memory is still 150.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 192.9MB. Free memory was 120.1MB in the beginning and 108.5MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.47ms. Allocated memory is still 192.9MB. Free memory was 108.3MB in the beginning and 162.0MB in the end (delta: -53.8MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.88ms. Allocated memory is still 192.9MB. Free memory was 162.0MB in the beginning and 159.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 557.55ms. Allocated memory is still 192.9MB. Free memory was 159.9MB in the beginning and 111.7MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4160.49ms. Allocated memory was 192.9MB in the beginning and 402.7MB in the end (delta: 209.7MB). Free memory was 110.7MB in the beginning and 347.3MB in the end (delta: -236.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.83ms. Allocated memory is still 402.7MB. Free memory was 347.3MB in the beginning and 343.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 63 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: 4.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 373 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1567 IncrementalHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 10 mSDtfsCounter, 1567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred in iteration=5, InterpolantAutomatonStates: 62, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 1346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-27 15:33:25,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE