./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_power.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya --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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:25:19,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:25:19,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 20:25:19,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:25:19,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:25:19,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:25:19,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:25:19,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:25:19,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:25:19,583 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:25:19,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:25:19,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:25:19,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:25:19,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:25:19,586 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:25:19,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:25:19,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:25:19,587 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:25:19,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:25:19,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:25:19,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:25:19,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:25:19,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:25:19,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:25:19,591 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 20:25:19,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:25:19,592 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:25:19,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:25:19,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:25:19,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:25:19,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:25:19,594 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:25:19,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:25:19,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:25:19,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:25:19,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:25:19,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:25:19,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:25:19,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:25:19,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:25:19,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:25:19,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:25:19,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:25:19,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:25:19,608 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2023-11-28 20:25:19,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:25:19,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:25:19,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:25:19,914 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:25:19,915 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:25:19,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-wmm/safe035_power.i [2023-11-28 20:25:23,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:25:23,571 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:25:23,571 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/sv-benchmarks/c/pthread-wmm/safe035_power.i [2023-11-28 20:25:23,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/data/32c84c368/a30e9230bbde4be19aa346a6e987cc8b/FLAGec2cae134 [2023-11-28 20:25:23,613 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/data/32c84c368/a30e9230bbde4be19aa346a6e987cc8b [2023-11-28 20:25:23,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:25:23,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:25:23,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:25:23,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:25:23,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:25:23,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:25:23" (1/1) ... [2023-11-28 20:25:23,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259988f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:23, skipping insertion in model container [2023-11-28 20:25:23,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:25:23" (1/1) ... [2023-11-28 20:25:23,703 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:25:24,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:25:24,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:25:24,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:25:24,374 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:25:24,374 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:25:24,384 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:25:24,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24 WrapperNode [2023-11-28 20:25:24,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:25:24,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:25:24,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:25:24,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:25:24,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,459 INFO L138 Inliner]: procedures = 176, calls = 61, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 180 [2023-11-28 20:25:24,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:25:24,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:25:24,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:25:24,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:25:24,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,508 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-28 20:25:24,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:25:24,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:25:24,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:25:24,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:25:24,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (1/1) ... [2023-11-28 20:25:24,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:25:24,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:25:24,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:25:24,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:25:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:25:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:25:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-28 20:25:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-28 20:25:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-28 20:25:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-28 20:25:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-28 20:25:24,627 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-28 20:25:24,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:25:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:25:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:25:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 20:25:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-28 20:25:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:25:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:25:24,631 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:25:24,798 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:25:24,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:25:25,264 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:25:25,651 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:25:25,651 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:25:25,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:25:25 BoogieIcfgContainer [2023-11-28 20:25:25,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:25:25,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:25:25,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:25:25,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:25:25,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:25:23" (1/3) ... [2023-11-28 20:25:25,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6ca1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:25:25, skipping insertion in model container [2023-11-28 20:25:25,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:24" (2/3) ... [2023-11-28 20:25:25,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6ca1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:25:25, skipping insertion in model container [2023-11-28 20:25:25,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:25:25" (3/3) ... [2023-11-28 20:25:25,664 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2023-11-28 20:25:25,677 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:25:25,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:25:25,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-28 20:25:25,691 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:25:25,761 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 20:25:25,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 42 transitions, 96 flow [2023-11-28 20:25:25,850 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-11-28 20:25:25,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:25:25,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-28 20:25:25,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 42 transitions, 96 flow [2023-11-28 20:25:25,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 39 transitions, 87 flow [2023-11-28 20:25:25,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:25:25,881 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55c8196d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:25:25,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-28 20:25:25,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:25:25,894 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-28 20:25:25,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:25:25,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:25,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:25,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-28 20:25:25,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:25,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2083981319, now seen corresponding path program 1 times [2023-11-28 20:25:25,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:25,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757095985] [2023-11-28 20:25:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:26,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:26,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757095985] [2023-11-28 20:25:26,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757095985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:26,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:26,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:25:26,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756581031] [2023-11-28 20:25:26,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:26,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:25:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:26,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:25:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:25:26,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2023-11-28 20:25:26,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:26,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:26,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2023-11-28 20:25:26,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:27,961 INFO L124 PetriNetUnfolderBase]: 5003/7241 cut-off events. [2023-11-28 20:25:27,961 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-28 20:25:27,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14548 conditions, 7241 events. 5003/7241 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 40905 event pairs, 1725 based on Foata normal form. 0/6201 useless extension candidates. Maximal degree in co-relation 14537. Up to 6047 conditions per place. [2023-11-28 20:25:28,028 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 49 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2023-11-28 20:25:28,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 60 transitions, 241 flow [2023-11-28 20:25:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:25:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:25:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2023-11-28 20:25:28,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2023-11-28 20:25:28,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 89 transitions. [2023-11-28 20:25:28,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 89 transitions. [2023-11-28 20:25:28,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:28,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 89 transitions. [2023-11-28 20:25:28,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:28,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:28,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:28,054 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2023-11-28 20:25:28,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 60 transitions, 241 flow [2023-11-28 20:25:28,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 236 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-28 20:25:28,062 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 120 flow [2023-11-28 20:25:28,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2023-11-28 20:25:28,068 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2023-11-28 20:25:28,069 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 120 flow [2023-11-28 20:25:28,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:28,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:28,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:28,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:25:28,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-28 20:25:28,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:28,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1386454026, now seen corresponding path program 1 times [2023-11-28 20:25:28,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:28,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397948458] [2023-11-28 20:25:28,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:28,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:28,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397948458] [2023-11-28 20:25:28,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397948458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:28,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:28,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:25:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38795941] [2023-11-28 20:25:28,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:28,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:25:28,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:28,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:25:28,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:25:28,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2023-11-28 20:25:28,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:28,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:28,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2023-11-28 20:25:28,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:29,688 INFO L124 PetriNetUnfolderBase]: 3935/5697 cut-off events. [2023-11-28 20:25:29,688 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2023-11-28 20:25:29,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12928 conditions, 5697 events. 3935/5697 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 31495 event pairs, 1307 based on Foata normal form. 0/5241 useless extension candidates. Maximal degree in co-relation 12917. Up to 4502 conditions per place. [2023-11-28 20:25:29,754 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 46 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2023-11-28 20:25:29,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 248 flow [2023-11-28 20:25:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:25:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-28 20:25:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2023-11-28 20:25:29,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2023-11-28 20:25:29,757 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 93 transitions. [2023-11-28 20:25:29,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 93 transitions. [2023-11-28 20:25:29,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:29,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 93 transitions. [2023-11-28 20:25:29,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:29,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:29,762 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:29,762 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 120 flow. Second operand 4 states and 93 transitions. [2023-11-28 20:25:29,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 248 flow [2023-11-28 20:25:29,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 20:25:29,766 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2023-11-28 20:25:29,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2023-11-28 20:25:29,768 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-11-28 20:25:29,768 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2023-11-28 20:25:29,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:29,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:29,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:29,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:25:29,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-28 20:25:29,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:29,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1386454027, now seen corresponding path program 1 times [2023-11-28 20:25:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:29,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322417198] [2023-11-28 20:25:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:29,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:29,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322417198] [2023-11-28 20:25:29,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322417198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:29,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:29,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:25:29,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141552142] [2023-11-28 20:25:29,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:29,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:25:29,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:29,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:25:29,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:25:29,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2023-11-28 20:25:29,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:29,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:29,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2023-11-28 20:25:29,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:30,928 INFO L124 PetriNetUnfolderBase]: 3167/4597 cut-off events. [2023-11-28 20:25:30,928 INFO L125 PetriNetUnfolderBase]: For 890/890 co-relation queries the response was YES. [2023-11-28 20:25:30,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10281 conditions, 4597 events. 3167/4597 cut-off events. For 890/890 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 24978 event pairs, 837 based on Foata normal form. 0/4509 useless extension candidates. Maximal degree in co-relation 10269. Up to 1958 conditions per place. [2023-11-28 20:25:30,973 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 62 selfloop transitions, 7 changer transitions 3/79 dead transitions. [2023-11-28 20:25:30,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 79 transitions, 348 flow [2023-11-28 20:25:30,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:25:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-28 20:25:30,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2023-11-28 20:25:30,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6845238095238095 [2023-11-28 20:25:30,977 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 115 transitions. [2023-11-28 20:25:30,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 115 transitions. [2023-11-28 20:25:30,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:30,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 115 transitions. [2023-11-28 20:25:30,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:30,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:30,981 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:30,981 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 4 states and 115 transitions. [2023-11-28 20:25:30,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 79 transitions, 348 flow [2023-11-28 20:25:30,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 79 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:25:30,986 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 133 flow [2023-11-28 20:25:30,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-28 20:25:30,987 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2023-11-28 20:25:30,988 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 133 flow [2023-11-28 20:25:30,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:30,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:30,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:30,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:25:30,989 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-28 20:25:30,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:30,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1005501764, now seen corresponding path program 1 times [2023-11-28 20:25:30,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:30,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061804190] [2023-11-28 20:25:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:30,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:31,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:31,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:31,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061804190] [2023-11-28 20:25:31,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061804190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:31,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:31,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:25:31,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441088367] [2023-11-28 20:25:31,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:31,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:25:31,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:31,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:25:31,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:25:31,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2023-11-28 20:25:31,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:31,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:31,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2023-11-28 20:25:31,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:32,126 INFO L124 PetriNetUnfolderBase]: 2899/4209 cut-off events. [2023-11-28 20:25:32,126 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2023-11-28 20:25:32,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10252 conditions, 4209 events. 2899/4209 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 23138 event pairs, 777 based on Foata normal form. 72/4265 useless extension candidates. Maximal degree in co-relation 10239. Up to 1958 conditions per place. [2023-11-28 20:25:32,141 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2023-11-28 20:25:32,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 327 flow [2023-11-28 20:25:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:25:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-28 20:25:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2023-11-28 20:25:32,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-11-28 20:25:32,143 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 119 transitions. [2023-11-28 20:25:32,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 119 transitions. [2023-11-28 20:25:32,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:32,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 119 transitions. [2023-11-28 20:25:32,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:32,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:32,146 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:32,146 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 133 flow. Second operand 5 states and 119 transitions. [2023-11-28 20:25:32,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 327 flow [2023-11-28 20:25:32,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 303 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-28 20:25:32,151 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-28 20:25:32,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-28 20:25:32,152 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-11-28 20:25:32,153 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-28 20:25:32,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:25:32,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-28 20:25:32,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-28 20:25:32,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-28 20:25:32,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-28 20:25:32,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-28 20:25:32,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-28 20:25:32,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-28 20:25:32,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-28 20:25:32,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-28 20:25:32,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-28 20:25:32,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-28 20:25:32,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-28 20:25:32,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-28 20:25:32,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-28 20:25:32,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-28 20:25:32,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:25:32,163 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-28 20:25:32,171 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 20:25:32,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:25:32,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:25:32 BasicIcfg [2023-11-28 20:25:32,179 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:25:32,180 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:25:32,180 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:25:32,181 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:25:32,181 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:25:25" (3/4) ... [2023-11-28 20:25:32,184 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:25:32,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-28 20:25:32,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-28 20:25:32,188 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-28 20:25:32,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 97 nodes and edges [2023-11-28 20:25:32,197 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-28 20:25:32,198 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-28 20:25:32,198 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-28 20:25:32,326 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:25:32,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:25:32,327 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:25:32,328 INFO L158 Benchmark]: Toolchain (without parser) took 8709.85ms. Allocated memory was 188.7MB in the beginning and 564.1MB in the end (delta: 375.4MB). Free memory was 152.0MB in the beginning and 260.1MB in the end (delta: -108.0MB). Peak memory consumption was 268.7MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,328 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 188.7MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:25:32,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 765.52ms. Allocated memory is still 188.7MB. Free memory was 152.0MB in the beginning and 124.2MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.69ms. Allocated memory is still 188.7MB. Free memory was 124.2MB in the beginning and 120.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,330 INFO L158 Benchmark]: Boogie Preprocessor took 79.31ms. Allocated memory is still 188.7MB. Free memory was 120.7MB in the beginning and 115.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,330 INFO L158 Benchmark]: RCFGBuilder took 1110.98ms. Allocated memory was 188.7MB in the beginning and 228.6MB in the end (delta: 39.8MB). Free memory was 115.0MB in the beginning and 155.8MB in the end (delta: -40.7MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,331 INFO L158 Benchmark]: TraceAbstraction took 6523.45ms. Allocated memory was 228.6MB in the beginning and 564.1MB in the end (delta: 335.5MB). Free memory was 154.7MB in the beginning and 265.3MB in the end (delta: -110.6MB). Peak memory consumption was 226.0MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,331 INFO L158 Benchmark]: Witness Printer took 147.21ms. Allocated memory is still 564.1MB. Free memory was 265.3MB in the beginning and 260.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:25:32,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 188.7MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 765.52ms. Allocated memory is still 188.7MB. Free memory was 152.0MB in the beginning and 124.2MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.69ms. Allocated memory is still 188.7MB. Free memory was 124.2MB in the beginning and 120.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.31ms. Allocated memory is still 188.7MB. Free memory was 120.7MB in the beginning and 115.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1110.98ms. Allocated memory was 188.7MB in the beginning and 228.6MB in the end (delta: 39.8MB). Free memory was 115.0MB in the beginning and 155.8MB in the end (delta: -40.7MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6523.45ms. Allocated memory was 228.6MB in the beginning and 564.1MB in the end (delta: 335.5MB). Free memory was 154.7MB in the beginning and 265.3MB in the end (delta: -110.6MB). Peak memory consumption was 226.0MB. Max. memory is 16.1GB. * Witness Printer took 147.21ms. Allocated memory is still 564.1MB. Free memory was 265.3MB in the beginning and 260.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 804]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 853]: 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 7 procedures, 76 locations, 15 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: 6.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 333 IncrementalHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 1 mSDtfsCounter, 333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=3, 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 20:25:32,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_482e7a1c-6da6-43c7-a6ce-8fe471894230/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE