./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/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_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:38:10,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:38:10,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:38:10,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:38:10,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:38:10,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:38:10,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:38:10,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:38:10,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:38:10,297 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:38:10,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:38:10,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:38:10,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:38:10,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:38:10,298 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:38:10,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:38:10,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:38:10,300 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:38:10,301 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:38:10,301 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:10,301 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:10,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:10,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:10,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:10,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:38:10,302 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:38:10,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:38:10,303 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_213a599b-f766-4f20-b65f-90c89278b92f/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 ! overflow) ) 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 -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2024-11-28 04:38:10,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:38:10,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:38:10,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:38:10,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:38:10,605 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:38:10,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-11-28 04:38:13,620 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/data/902a35118/3fc0602b76d045b5a215cdb111dd1ac0/FLAG96110edc5 [2024-11-28 04:38:14,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:38:14,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-11-28 04:38:14,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/data/902a35118/3fc0602b76d045b5a215cdb111dd1ac0/FLAG96110edc5 [2024-11-28 04:38:14,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/data/902a35118/3fc0602b76d045b5a215cdb111dd1ac0 [2024-11-28 04:38:14,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:38:14,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:38:14,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:14,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:38:14,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:38:14,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b525db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14, skipping insertion in model container [2024-11-28 04:38:14,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,168 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:38:14,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:14,679 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:38:14,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:38:14,793 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:38:14,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14 WrapperNode [2024-11-28 04:38:14,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:38:14,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:14,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:38:14,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:38:14,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,836 INFO L138 Inliner]: procedures = 263, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2024-11-28 04:38:14,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:38:14,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:38:14,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:38:14,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:38:14,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,850 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,865 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2024-11-28 04:38:14,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,872 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,873 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:38:14,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:38:14,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:38:14,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:38:14,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (1/1) ... [2024-11-28 04:38:14,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:38:14,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:38:14,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:38:14,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:38:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:38:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:38:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:38:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 04:38:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 04:38:14,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:38:14,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:38:14,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:38:14,948 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:38:15,113 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:38:15,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:38:15,303 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:38:15,304 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:38:15,428 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:38:15,429 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:38:15,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15 BoogieIcfgContainer [2024-11-28 04:38:15,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:38:15,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:38:15,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:38:15,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:38:15,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:38:14" (1/3) ... [2024-11-28 04:38:15,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532ae5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:15, skipping insertion in model container [2024-11-28 04:38:15,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:14" (2/3) ... [2024-11-28 04:38:15,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532ae5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:38:15, skipping insertion in model container [2024-11-28 04:38:15,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15" (3/3) ... [2024-11-28 04:38:15,443 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2024-11-28 04:38:15,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:38:15,465 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_04-munge_nr.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 04:38:15,465 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:38:15,530 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:38:15,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2024-11-28 04:38:15,635 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2024-11-28 04:38:15,638 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:38:15,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-28 04:38:15,647 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2024-11-28 04:38:15,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-28 04:38:15,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:38:15,682 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;@510681f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:38:15,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 04:38:15,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:38:15,697 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-28 04:38:15,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:38:15,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:15,698 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:38:15,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:15,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 275175833, now seen corresponding path program 1 times [2024-11-28 04:38:15,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:15,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922627536] [2024-11-28 04:38:15,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:15,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:16,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:16,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922627536] [2024-11-28 04:38:16,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922627536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:16,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:16,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:38:16,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111020391] [2024-11-28 04:38:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:16,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:38:16,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:16,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:38:16,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:38:16,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-28 04:38:16,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:16,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-28 04:38:16,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:16,176 INFO L124 PetriNetUnfolderBase]: 33/92 cut-off events. [2024-11-28 04:38:16,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:38:16,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 92 events. 33/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 292 event pairs, 18 based on Foata normal form. 5/90 useless extension candidates. Maximal degree in co-relation 170. Up to 69 conditions per place. [2024-11-28 04:38:16,181 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 17 selfloop transitions, 3 changer transitions 2/26 dead transitions. [2024-11-28 04:38:16,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 99 flow [2024-11-28 04:38:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:38:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:38:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2024-11-28 04:38:16,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2024-11-28 04:38:16,197 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 41 transitions. [2024-11-28 04:38:16,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 99 flow [2024-11-28 04:38:16,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:38:16,204 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 59 flow [2024-11-28 04:38:16,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2024-11-28 04:38:16,210 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2024-11-28 04:38:16,210 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 59 flow [2024-11-28 04:38:16,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:16,211 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:16,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:38:16,211 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:16,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:16,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1247447553, now seen corresponding path program 1 times [2024-11-28 04:38:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:16,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005951607] [2024-11-28 04:38:16,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:16,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:16,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005951607] [2024-11-28 04:38:16,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005951607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:16,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:16,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:38:16,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449457228] [2024-11-28 04:38:16,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:16,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:38:16,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:16,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:38:16,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:16,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-28 04:38:16,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 59 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:16,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-28 04:38:16,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:16,842 INFO L124 PetriNetUnfolderBase]: 21/119 cut-off events. [2024-11-28 04:38:16,842 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-28 04:38:16,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 119 events. 21/119 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 594 event pairs, 1 based on Foata normal form. 4/123 useless extension candidates. Maximal degree in co-relation 224. Up to 32 conditions per place. [2024-11-28 04:38:16,867 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 16 selfloop transitions, 18 changer transitions 0/42 dead transitions. [2024-11-28 04:38:16,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 186 flow [2024-11-28 04:38:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:38:16,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 99 transitions. [2024-11-28 04:38:16,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6149068322981367 [2024-11-28 04:38:16,869 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 59 flow. Second operand 7 states and 99 transitions. [2024-11-28 04:38:16,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 186 flow [2024-11-28 04:38:16,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 178 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:38:16,871 INFO L231 Difference]: Finished difference. Result has 35 places, 34 transitions, 160 flow [2024-11-28 04:38:16,872 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=35, PETRI_TRANSITIONS=34} [2024-11-28 04:38:16,873 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 11 predicate places. [2024-11-28 04:38:16,873 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 34 transitions, 160 flow [2024-11-28 04:38:16,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:16,873 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:16,873 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:16,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:38:16,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:16,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:16,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1937954055, now seen corresponding path program 2 times [2024-11-28 04:38:16,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:16,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313014595] [2024-11-28 04:38:16,875 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:38:16,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:16,891 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:38:16,891 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:38:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:17,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313014595] [2024-11-28 04:38:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313014595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:38:17,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234657152] [2024-11-28 04:38:17,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:38:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:38:17,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:17,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-28 04:38:17,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 34 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:17,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-28 04:38:17,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:17,282 INFO L124 PetriNetUnfolderBase]: 16/100 cut-off events. [2024-11-28 04:38:17,283 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-28 04:38:17,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 100 events. 16/100 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 446 event pairs, 0 based on Foata normal form. 4/104 useless extension candidates. Maximal degree in co-relation 262. Up to 26 conditions per place. [2024-11-28 04:38:17,284 INFO L140 encePairwiseOnDemand]: 15/23 looper letters, 17 selfloop transitions, 20 changer transitions 0/45 dead transitions. [2024-11-28 04:38:17,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 290 flow [2024-11-28 04:38:17,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:38:17,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:38:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-11-28 04:38:17,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-28 04:38:17,287 INFO L175 Difference]: Start difference. First operand has 35 places, 34 transitions, 160 flow. Second operand 6 states and 87 transitions. [2024-11-28 04:38:17,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 290 flow [2024-11-28 04:38:17,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 284 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-28 04:38:17,294 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 275 flow [2024-11-28 04:38:17,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-11-28 04:38:17,297 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 20 predicate places. [2024-11-28 04:38:17,298 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 275 flow [2024-11-28 04:38:17,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:17,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:17,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:38:17,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:17,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:17,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1180689778, now seen corresponding path program 1 times [2024-11-28 04:38:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:17,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-28 04:38:17,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:17,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:17,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-28 04:38:17,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117511050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:38:17,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951589407] [2024-11-28 04:38:17,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:38:17,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:38:17,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:38:17,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 23 [2024-11-28 04:38:17,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 275 flow. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:17,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 23 [2024-11-28 04:38:17,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:17,620 INFO L124 PetriNetUnfolderBase]: 14/86 cut-off events. [2024-11-28 04:38:17,620 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-28 04:38:17,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 86 events. 14/86 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 336 event pairs, 0 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 281. Up to 20 conditions per place. [2024-11-28 04:38:17,622 INFO L140 encePairwiseOnDemand]: 16/23 looper letters, 13 selfloop transitions, 22 changer transitions 0/43 dead transitions. [2024-11-28 04:38:17,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 358 flow [2024-11-28 04:38:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:38:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:38:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-11-28 04:38:17,623 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403726708074534 [2024-11-28 04:38:17,623 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 275 flow. Second operand 7 states and 87 transitions. [2024-11-28 04:38:17,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 358 flow [2024-11-28 04:38:17,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 324 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-28 04:38:17,629 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 299 flow [2024-11-28 04:38:17,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=299, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2024-11-28 04:38:17,630 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 24 predicate places. [2024-11-28 04:38:17,630 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 299 flow [2024-11-28 04:38:17,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:17,630 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:17,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:38:17,631 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:17,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:17,631 INFO L85 PathProgramCache]: Analyzing trace with hash 845137821, now seen corresponding path program 1 times [2024-11-28 04:38:17,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:17,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883437195] [2024-11-28 04:38:17,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:17,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883437195] [2024-11-28 04:38:17,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883437195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:17,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878620310] [2024-11-28 04:38:17,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:38:17,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:38:17,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:38:17,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-28 04:38:17,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:17,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-28 04:38:17,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:17,789 INFO L124 PetriNetUnfolderBase]: 18/84 cut-off events. [2024-11-28 04:38:17,789 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-11-28 04:38:17,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 84 events. 18/84 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 289 event pairs, 0 based on Foata normal form. 6/89 useless extension candidates. Maximal degree in co-relation 312. Up to 46 conditions per place. [2024-11-28 04:38:17,791 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 44 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2024-11-28 04:38:17,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 503 flow [2024-11-28 04:38:17,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:38:17,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:38:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2024-11-28 04:38:17,792 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43478260869565216 [2024-11-28 04:38:17,792 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 299 flow. Second operand 4 states and 40 transitions. [2024-11-28 04:38:17,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 503 flow [2024-11-28 04:38:17,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 51 transitions, 474 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-28 04:38:17,798 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 277 flow [2024-11-28 04:38:17,798 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2024-11-28 04:38:17,802 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 23 predicate places. [2024-11-28 04:38:17,802 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 277 flow [2024-11-28 04:38:17,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:38:17,802 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:38:17,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:38:17,803 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 04:38:17,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:38:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1657685929, now seen corresponding path program 1 times [2024-11-28 04:38:17,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:38:17,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844586683] [2024-11-28 04:38:17,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:38:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:38:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:38:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:38:17,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:38:17,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844586683] [2024-11-28 04:38:17,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844586683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:38:17,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:38:17,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:38:17,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053173355] [2024-11-28 04:38:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:38:17,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:38:17,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:38:17,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:38:17,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:38:17,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-28 04:38:17,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:38:17,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-28 04:38:17,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:38:17,939 INFO L124 PetriNetUnfolderBase]: 14/72 cut-off events. [2024-11-28 04:38:17,939 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-28 04:38:17,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 72 events. 14/72 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 242 event pairs, 0 based on Foata normal form. 6/76 useless extension candidates. Maximal degree in co-relation 266. Up to 36 conditions per place. [2024-11-28 04:38:17,940 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-28 04:38:17,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 468 flow [2024-11-28 04:38:17,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:38:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:38:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2024-11-28 04:38:17,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-11-28 04:38:17,941 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 277 flow. Second operand 4 states and 38 transitions. [2024-11-28 04:38:17,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 468 flow [2024-11-28 04:38:17,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 461 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:38:17,945 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-28 04:38:17,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-28 04:38:17,946 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 21 predicate places. [2024-11-28 04:38:17,946 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-28 04:38:17,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:38:17,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-28 04:38:17,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-28 04:38:17,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-28 04:38:17,949 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-28 04:38:17,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-28 04:38:17,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-28 04:38:17,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-28 04:38:17,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:38:17,950 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-28 04:38:17,959 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:38:17,959 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:38:17,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:38:17 BasicIcfg [2024-11-28 04:38:17,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:38:17,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:38:17,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:38:17,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:38:17,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:15" (3/4) ... [2024-11-28 04:38:17,968 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:38:17,971 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 04:38:17,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-28 04:38:17,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:38:17,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:38:18,048 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:38:18,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:38:18,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:38:18,050 INFO L158 Benchmark]: Toolchain (without parser) took 3939.33ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.1MB in the beginning and 237.1MB in the end (delta: -145.0MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-28 04:38:18,050 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:38:18,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 682.33ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 65.3MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:38:18,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 63.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:38:18,051 INFO L158 Benchmark]: Boogie Preprocessor took 41.13ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 61.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:38:18,052 INFO L158 Benchmark]: RCFGBuilder took 549.97ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 44.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:38:18,052 INFO L158 Benchmark]: TraceAbstraction took 2531.18ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 43.9MB in the beginning and 241.7MB in the end (delta: -197.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-28 04:38:18,052 INFO L158 Benchmark]: Witness Printer took 83.79ms. Allocated memory is still 352.3MB. Free memory was 241.7MB in the beginning and 237.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:38:18,054 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 682.33ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 65.3MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 63.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.13ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 61.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 549.97ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 44.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2531.18ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 43.9MB in the beginning and 241.7MB in the end (delta: -197.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 83.79ms. Allocated memory is still 352.3MB. Free memory was 241.7MB in the beginning and 237.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 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: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 322 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=4, InterpolantAutomatonStates: 31, 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, 1.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:38:18,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_213a599b-f766-4f20-b65f-90c89278b92f/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