./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:25:36,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:25:36,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:25:36,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:25:36,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:25:36,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:25:36,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:25:36,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:25:36,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:25:36,221 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:25:36,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:25:36,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:25:36,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:25:36,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:25:36,222 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:25:36,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:25:36,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:25:36,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:25:36,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:25:36,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:25:36,224 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:25:36,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:25:36,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:25:36,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:36,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:25:36,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:25:36,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:36,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:25:36,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:25:36,226 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:25:36,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:25:36,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:25:36,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 [2024-11-27 23:25:36,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:25:36,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:25:36,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:25:36,536 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:25:36,536 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:25:36,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-27 23:25:39,615 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/data/c54bfef77/89990d118ee64636880c56194dee8f3c/FLAG952527ec8 [2024-11-27 23:25:39,905 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:25:39,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-27 23:25:39,924 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/data/c54bfef77/89990d118ee64636880c56194dee8f3c/FLAG952527ec8 [2024-11-27 23:25:39,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/data/c54bfef77/89990d118ee64636880c56194dee8f3c [2024-11-27 23:25:39,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:25:39,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:25:39,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:39,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:25:39,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:25:39,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:39" (1/1) ... [2024-11-27 23:25:39,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52731dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:39, skipping insertion in model container [2024-11-27 23:25:39,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:25:39" (1/1) ... [2024-11-27 23:25:40,001 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:25:40,444 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-27 23:25:40,453 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-27 23:25:40,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:40,470 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:25:40,510 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-27 23:25:40,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-27 23:25:40,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:25:40,556 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:25:40,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40 WrapperNode [2024-11-27 23:25:40,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:25:40,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:40,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:25:40,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:25:40,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,613 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-11-27 23:25:40,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:25:40,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:25:40,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:25:40,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:25:40,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,646 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:25:40,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:25:40,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:25:40,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:25:40,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:25:40,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (1/1) ... [2024-11-27 23:25:40,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:25:40,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:25:40,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:25:40,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:25:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-27 23:25:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-27 23:25:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-27 23:25:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-27 23:25:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:25:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:25:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:25:40,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:25:40,753 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:25:40,874 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:25:40,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:25:41,087 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:25:41,087 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:25:41,193 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:25:41,194 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-27 23:25:41,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:41 BoogieIcfgContainer [2024-11-27 23:25:41,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:25:41,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:25:41,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:25:41,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:25:41,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:25:39" (1/3) ... [2024-11-27 23:25:41,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d6c3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:41, skipping insertion in model container [2024-11-27 23:25:41,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:25:40" (2/3) ... [2024-11-27 23:25:41,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d6c3cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:25:41, skipping insertion in model container [2024-11-27 23:25:41,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:41" (3/3) ... [2024-11-27 23:25:41,208 INFO L128 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-11-27 23:25:41,223 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:25:41,224 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG szymanski.i that has 3 procedures, 41 locations, 1 initial locations, 8 loop locations, and 2 error locations. [2024-11-27 23:25:41,224 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:25:41,294 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 23:25:41,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 52 transitions, 118 flow [2024-11-27 23:25:41,386 INFO L124 PetriNetUnfolderBase]: 12/50 cut-off events. [2024-11-27 23:25:41,392 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 23:25:41,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 12/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2024-11-27 23:25:41,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 52 transitions, 118 flow [2024-11-27 23:25:41,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 48 transitions, 105 flow [2024-11-27 23:25:41,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:25:41,431 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70c8583e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:25:41,431 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 23:25:41,455 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:25:41,455 INFO L124 PetriNetUnfolderBase]: 10/35 cut-off events. [2024-11-27 23:25:41,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:25:41,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:25:41,456 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:41,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 23:25:41,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:41,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1304711211, now seen corresponding path program 1 times [2024-11-27 23:25:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:41,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41287167] [2024-11-27 23:25:41,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:41,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:41,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41287167] [2024-11-27 23:25:41,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41287167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:41,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928111105] [2024-11-27 23:25:41,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:41,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:41,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:41,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:41,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:41,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-11-27 23:25:41,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 48 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:41,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:25:41,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-11-27 23:25:41,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:25:42,064 INFO L124 PetriNetUnfolderBase]: 207/453 cut-off events. [2024-11-27 23:25:42,064 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-27 23:25:42,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 453 events. 207/453 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2275 event pairs, 55 based on Foata normal form. 52/459 useless extension candidates. Maximal degree in co-relation 711. Up to 157 conditions per place. [2024-11-27 23:25:42,080 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 23 selfloop transitions, 3 changer transitions 1/55 dead transitions. [2024-11-27 23:25:42,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 176 flow [2024-11-27 23:25:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:42,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:25:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-11-27 23:25:42,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-27 23:25:42,098 INFO L175 Difference]: Start difference. First operand has 43 places, 48 transitions, 105 flow. Second operand 3 states and 122 transitions. [2024-11-27 23:25:42,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 176 flow [2024-11-27 23:25:42,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:25:42,107 INFO L231 Difference]: Finished difference. Result has 44 places, 47 transitions, 116 flow [2024-11-27 23:25:42,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2024-11-27 23:25:42,114 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-27 23:25:42,114 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 116 flow [2024-11-27 23:25:42,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:25:42,115 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:42,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:25:42,117 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 23:25:42,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:42,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1906219871, now seen corresponding path program 1 times [2024-11-27 23:25:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138729766] [2024-11-27 23:25:42,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:42,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:42,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:42,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138729766] [2024-11-27 23:25:42,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138729766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:42,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:42,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:42,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357544841] [2024-11-27 23:25:42,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:42,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:42,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:42,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:42,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 52 [2024-11-27 23:25:42,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:25:42,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 52 [2024-11-27 23:25:42,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:25:42,424 INFO L124 PetriNetUnfolderBase]: 225/474 cut-off events. [2024-11-27 23:25:42,425 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-27 23:25:42,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 474 events. 225/474 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2280 event pairs, 78 based on Foata normal form. 21/459 useless extension candidates. Maximal degree in co-relation 333. Up to 214 conditions per place. [2024-11-27 23:25:42,435 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 22 selfloop transitions, 2 changer transitions 3/55 dead transitions. [2024-11-27 23:25:42,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 187 flow [2024-11-27 23:25:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:25:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-27 23:25:42,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7628205128205128 [2024-11-27 23:25:42,437 INFO L175 Difference]: Start difference. First operand has 44 places, 47 transitions, 116 flow. Second operand 3 states and 119 transitions. [2024-11-27 23:25:42,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 187 flow [2024-11-27 23:25:42,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 181 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:25:42,442 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 120 flow [2024-11-27 23:25:42,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-27 23:25:42,446 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-27 23:25:42,447 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 120 flow [2024-11-27 23:25:42,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:25:42,447 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:42,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:25:42,448 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 23:25:42,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash 214226992, now seen corresponding path program 1 times [2024-11-27 23:25:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:42,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839579845] [2024-11-27 23:25:42,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:42,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:42,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839579845] [2024-11-27 23:25:42,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839579845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:42,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:42,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:42,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892354053] [2024-11-27 23:25:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:42,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:42,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:42,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:42,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:42,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-27 23:25:42,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:25:42,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-27 23:25:42,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:25:42,738 INFO L124 PetriNetUnfolderBase]: 362/680 cut-off events. [2024-11-27 23:25:42,738 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-11-27 23:25:42,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 680 events. 362/680 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3075 event pairs, 152 based on Foata normal form. 43/647 useless extension candidates. Maximal degree in co-relation 1091. Up to 362 conditions per place. [2024-11-27 23:25:42,743 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 29 selfloop transitions, 6 changer transitions 3/59 dead transitions. [2024-11-27 23:25:42,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 221 flow [2024-11-27 23:25:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:25:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-27 23:25:42,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2024-11-27 23:25:42,745 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 120 flow. Second operand 3 states and 116 transitions. [2024-11-27 23:25:42,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 221 flow [2024-11-27 23:25:42,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 59 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:25:42,748 INFO L231 Difference]: Finished difference. Result has 46 places, 50 transitions, 164 flow [2024-11-27 23:25:42,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=46, PETRI_TRANSITIONS=50} [2024-11-27 23:25:42,749 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-11-27 23:25:42,749 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 50 transitions, 164 flow [2024-11-27 23:25:42,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:25:42,750 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:42,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:25:42,750 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 23:25:42,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1849840646, now seen corresponding path program 1 times [2024-11-27 23:25:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:42,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463325228] [2024-11-27 23:25:42,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:42,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:42,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463325228] [2024-11-27 23:25:42,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463325228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:42,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:42,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:42,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413070347] [2024-11-27 23:25:42,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:42,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:42,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:42,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:42,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:42,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-11-27 23:25:42,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:42,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:25:42,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-11-27 23:25:42,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:25:43,004 INFO L124 PetriNetUnfolderBase]: 445/805 cut-off events. [2024-11-27 23:25:43,004 INFO L125 PetriNetUnfolderBase]: For 411/414 co-relation queries the response was YES. [2024-11-27 23:25:43,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 805 events. 445/805 cut-off events. For 411/414 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3721 event pairs, 180 based on Foata normal form. 37/802 useless extension candidates. Maximal degree in co-relation 1499. Up to 543 conditions per place. [2024-11-27 23:25:43,009 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 36 selfloop transitions, 5 changer transitions 3/62 dead transitions. [2024-11-27 23:25:43,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 62 transitions, 289 flow [2024-11-27 23:25:43,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:25:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-27 23:25:43,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7115384615384616 [2024-11-27 23:25:43,011 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 164 flow. Second operand 3 states and 111 transitions. [2024-11-27 23:25:43,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 62 transitions, 289 flow [2024-11-27 23:25:43,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 62 transitions, 279 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:25:43,015 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 194 flow [2024-11-27 23:25:43,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2024-11-27 23:25:43,016 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-11-27 23:25:43,016 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 194 flow [2024-11-27 23:25:43,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:43,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:25:43,017 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:43,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:25:43,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 23:25:43,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash 34363624, now seen corresponding path program 2 times [2024-11-27 23:25:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671845949] [2024-11-27 23:25:43,018 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:25:43,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:43,031 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:25:43,031 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:25:43,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:25:43,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:43,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671845949] [2024-11-27 23:25:43,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671845949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:43,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:43,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:25:43,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255491438] [2024-11-27 23:25:43,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:43,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:25:43,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:43,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:25:43,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:25:43,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 52 [2024-11-27 23:25:43,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:43,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:25:43,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 52 [2024-11-27 23:25:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:25:43,235 INFO L124 PetriNetUnfolderBase]: 470/872 cut-off events. [2024-11-27 23:25:43,236 INFO L125 PetriNetUnfolderBase]: For 400/426 co-relation queries the response was YES. [2024-11-27 23:25:43,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 872 events. 470/872 cut-off events. For 400/426 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4159 event pairs, 153 based on Foata normal form. 44/853 useless extension candidates. Maximal degree in co-relation 1322. Up to 313 conditions per place. [2024-11-27 23:25:43,239 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-27 23:25:43,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 309 flow [2024-11-27 23:25:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:25:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:25:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-27 23:25:43,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7371794871794872 [2024-11-27 23:25:43,241 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 194 flow. Second operand 3 states and 115 transitions. [2024-11-27 23:25:43,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 309 flow [2024-11-27 23:25:43,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 295 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-27 23:25:43,245 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-27 23:25:43,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-27 23:25:43,246 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-11-27 23:25:43,246 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-27 23:25:43,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:25:43,248 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-27 23:25:43,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-27 23:25:43,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-27 23:25:43,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-27 23:25:43,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-27 23:25:43,249 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-27 23:25:43,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:25:43,250 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-27 23:25:43,255 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:25:43,255 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:25:43,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:25:43 BasicIcfg [2024-11-27 23:25:43,260 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:25:43,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:25:43,261 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:25:43,261 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:25:43,262 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:25:41" (3/4) ... [2024-11-27 23:25:43,263 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:25:43,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-27 23:25:43,266 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-27 23:25:43,269 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-27 23:25:43,269 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-27 23:25:43,269 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 23:25:43,269 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:25:43,342 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:25:43,342 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:25:43,342 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:25:43,343 INFO L158 Benchmark]: Toolchain (without parser) took 3399.22ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 69.0MB in the end (delta: 21.7MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,344 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:25:43,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.41ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.9MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.04ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 69.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,346 INFO L158 Benchmark]: Boogie Preprocessor took 56.05ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:25:43,347 INFO L158 Benchmark]: RCFGBuilder took 521.96ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 51.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,349 INFO L158 Benchmark]: TraceAbstraction took 2063.41ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 72.7MB in the end (delta: -21.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,349 INFO L158 Benchmark]: Witness Printer took 81.51ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 69.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:25:43,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.41ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.9MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.04ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 69.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.05ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.96ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 51.7MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2063.41ms. Allocated memory is still 117.4MB. Free memory was 51.1MB in the beginning and 72.7MB in the end (delta: -21.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 81.51ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 69.0MB in the end (delta: 3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 744]: 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 5 procedures, 75 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 43 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:25:43,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b596b95c-f50e-408b-8c1c-543153b70a97/bin/uautomizer-verify-aQ6SnzHsRB/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