./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.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_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/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_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/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_526e642c-fa87-4ea2-86ce-84bf10e05fff/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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:39:57,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:39:57,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:39:57,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:39:57,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:39:57,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:39:57,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:39:57,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:39:57,904 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:39:57,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:39:57,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:39:57,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:39:57,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:39:57,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:39:57,907 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:39:57,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:39:57,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:39:57,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:39:57,909 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:39:57,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:39:57,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:39:57,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:39:57,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:39:57,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:39:57,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:39:57,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:39:57,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:39:57,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:39:57,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:39:57,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:39:57,913 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_526e642c-fa87-4ea2-86ce-84bf10e05fff/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 -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2024-11-28 04:39:58,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:39:58,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:39:58,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:39:58,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:39:58,231 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:39:58,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-28 04:40:01,255 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/data/c8a292da3/daeb6ca1681c41919ef1cc418dbaf50e/FLAG041edd802 [2024-11-28 04:40:01,588 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:40:01,589 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-28 04:40:01,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/data/c8a292da3/daeb6ca1681c41919ef1cc418dbaf50e/FLAG041edd802 [2024-11-28 04:40:01,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/data/c8a292da3/daeb6ca1681c41919ef1cc418dbaf50e [2024-11-28 04:40:01,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:40:01,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:40:01,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:40:01,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:40:01,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:40:01,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:01" (1/1) ... [2024-11-28 04:40:01,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad19ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:01, skipping insertion in model container [2024-11-28 04:40:01,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:01" (1/1) ... [2024-11-28 04:40:01,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:40:02,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:40:02,155 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:40:02,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:40:02,266 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:40:02,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02 WrapperNode [2024-11-28 04:40:02,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:40:02,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:40:02,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:40:02,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:40:02,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,306 INFO L138 Inliner]: procedures = 162, calls = 43, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 88 [2024-11-28 04:40:02,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:40:02,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:40:02,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:40:02,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:40:02,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,334 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-28 04:40:02,334 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,344 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:40:02,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:40:02,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:40:02,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:40:02,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (1/1) ... [2024-11-28 04:40:02,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:40:02,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:40:02,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:40:02,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:40:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-28 04:40:02,425 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-28 04:40:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 04:40:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:40:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:40:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:40:02,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:40:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:40:02,427 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 04:40:02,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:40:02,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:40:02,429 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 04:40:02,578 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:40:02,581 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:40:02,921 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:40:02,921 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:40:03,194 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:40:03,198 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:40:03,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:03 BoogieIcfgContainer [2024-11-28 04:40:03,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:40:03,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:40:03,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:40:03,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:40:03,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:40:01" (1/3) ... [2024-11-28 04:40:03,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f1e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:40:03, skipping insertion in model container [2024-11-28 04:40:03,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:02" (2/3) ... [2024-11-28 04:40:03,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f1e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:40:03, skipping insertion in model container [2024-11-28 04:40:03,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:03" (3/3) ... [2024-11-28 04:40:03,212 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-11-28 04:40:03,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:40:03,232 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_29-multiple-protecting2-vesal_true.i that has 2 procedures, 44 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 04:40:03,232 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:40:03,299 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-28 04:40:03,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 43 transitions, 93 flow [2024-11-28 04:40:03,388 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-11-28 04:40:03,390 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:40:03,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 42 events. 0/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-28 04:40:03,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 43 transitions, 93 flow [2024-11-28 04:40:03,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 35 transitions, 73 flow [2024-11-28 04:40:03,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:40:03,428 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;@5b1c6fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:40:03,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 04:40:03,442 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:40:03,442 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-28 04:40:03,442 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:40:03,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:40:03,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:03,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:40:03,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1704066528, now seen corresponding path program 1 times [2024-11-28 04:40:03,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:03,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737961221] [2024-11-28 04:40:03,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:03,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:03,872 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 04:40:03,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:03,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737961221] [2024-11-28 04:40:03,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737961221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:03,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:03,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:40:03,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673578510] [2024-11-28 04:40:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:03,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:40:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:03,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:40:03,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:40:03,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-28 04:40:03,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:40:03,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:40:03,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-28 04:40:03,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:40:04,222 INFO L124 PetriNetUnfolderBase]: 85/290 cut-off events. [2024-11-28 04:40:04,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:40:04,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 290 events. 85/290 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1364 event pairs, 22 based on Foata normal form. 12/288 useless extension candidates. Maximal degree in co-relation 484. Up to 89 conditions per place. [2024-11-28 04:40:04,230 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 41 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2024-11-28 04:40:04,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 58 transitions, 209 flow [2024-11-28 04:40:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:40:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:40:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-28 04:40:04,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.622093023255814 [2024-11-28 04:40:04,256 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 73 flow. Second operand 4 states and 107 transitions. [2024-11-28 04:40:04,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 58 transitions, 209 flow [2024-11-28 04:40:04,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 58 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:40:04,266 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 83 flow [2024-11-28 04:40:04,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2024-11-28 04:40:04,275 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2024-11-28 04:40:04,277 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 83 flow [2024-11-28 04:40:04,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 04:40:04,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:40:04,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:04,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:40:04,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:40:04,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:04,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1675557244, now seen corresponding path program 1 times [2024-11-28 04:40:04,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:04,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846977945] [2024-11-28 04:40:04,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:04,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:04,500 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 04:40:04,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:04,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846977945] [2024-11-28 04:40:04,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846977945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:04,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:04,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:40:04,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965053197] [2024-11-28 04:40:04,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:04,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:40:04,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:04,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:40:04,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:40:04,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-28 04:40:04,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 04:40:04,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:40:04,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-28 04:40:04,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:40:04,829 INFO L124 PetriNetUnfolderBase]: 83/248 cut-off events. [2024-11-28 04:40:04,830 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-28 04:40:04,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 248 events. 83/248 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1070 event pairs, 22 based on Foata normal form. 17/263 useless extension candidates. Maximal degree in co-relation 464. Up to 66 conditions per place. [2024-11-28 04:40:04,833 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 48 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2024-11-28 04:40:04,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 63 transitions, 244 flow [2024-11-28 04:40:04,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:40:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:40:04,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 133 transitions. [2024-11-28 04:40:04,837 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5155038759689923 [2024-11-28 04:40:04,837 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 83 flow. Second operand 6 states and 133 transitions. [2024-11-28 04:40:04,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 63 transitions, 244 flow [2024-11-28 04:40:04,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 63 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:40:04,840 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 78 flow [2024-11-28 04:40:04,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=78, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2024-11-28 04:40:04,841 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-11-28 04:40:04,842 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 78 flow [2024-11-28 04:40:04,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 04:40:04,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:40:04,842 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:40:04,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:40:04,843 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:40:04,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:40:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash -402666629, now seen corresponding path program 1 times [2024-11-28 04:40:04,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:40:04,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027824576] [2024-11-28 04:40:04,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:40:04,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:40:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:40:05,062 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 04:40:05,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:40:05,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027824576] [2024-11-28 04:40:05,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027824576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:40:05,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:40:05,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:40:05,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146727874] [2024-11-28 04:40:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:40:05,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:40:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:40:05,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:40:05,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:40:05,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-28 04:40:05,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 04:40:05,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:40:05,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-28 04:40:05,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:40:05,300 INFO L124 PetriNetUnfolderBase]: 73/226 cut-off events. [2024-11-28 04:40:05,300 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-28 04:40:05,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 226 events. 73/226 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 970 event pairs, 22 based on Foata normal form. 12/236 useless extension candidates. Maximal degree in co-relation 432. Up to 66 conditions per place. [2024-11-28 04:40:05,301 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-11-28 04:40:05,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 62 transitions, 242 flow [2024-11-28 04:40:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:40:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:40:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-28 04:40:05,305 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-11-28 04:40:05,305 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 78 flow. Second operand 6 states and 130 transitions. [2024-11-28 04:40:05,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 62 transitions, 242 flow [2024-11-28 04:40:05,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 235 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:40:05,307 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-11-28 04:40:05,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-11-28 04:40:05,310 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2024-11-28 04:40:05,310 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-11-28 04:40:05,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 04:40:05,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-28 04:40:05,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-28 04:40:05,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-28 04:40:05,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-28 04:40:05,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:40:05,315 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 04:40:05,322 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:40:05,322 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:40:05,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:40:05 BasicIcfg [2024-11-28 04:40:05,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:40:05,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:40:05,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:40:05,330 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:40:05,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:03" (3/4) ... [2024-11-28 04:40:05,333 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:40:05,335 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-28 04:40:05,342 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-28 04:40:05,342 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:40:05,342 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:40:05,342 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:40:05,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:40:05,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:40:05,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:40:05,422 INFO L158 Benchmark]: Toolchain (without parser) took 3787.10ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 34.3MB in the end (delta: 57.2MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,423 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:40:05,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.17ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.7MB in the end (delta: 19.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.53ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 69.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,424 INFO L158 Benchmark]: Boogie Preprocessor took 48.68ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:40:05,425 INFO L158 Benchmark]: RCFGBuilder took 843.01ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 86.2MB in the end (delta: -18.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,425 INFO L158 Benchmark]: TraceAbstraction took 2125.86ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 38.9MB in the end (delta: 46.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,425 INFO L158 Benchmark]: Witness Printer took 92.90ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 34.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:40:05,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.17ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 71.7MB in the end (delta: 19.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.53ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 69.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.68ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 68.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 843.01ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 86.2MB in the end (delta: -18.0MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2125.86ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 38.9MB in the end (delta: 46.6MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Witness Printer took 92.90ms. Allocated memory is still 117.4MB. Free memory was 38.9MB in the beginning and 34.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: 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, 67 locations, 9 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 4 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=1, InterpolantAutomatonStates: 16, 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, 0.6s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 04:40:05,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_526e642c-fa87-4ea2-86ce-84bf10e05fff/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