./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme --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 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:47:48,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:47:48,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:47:48,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:47:48,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:47:48,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:47:48,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:47:48,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:47:48,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:47:48,579 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:47:48,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:47:48,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:47:48,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:47:48,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:47:48,583 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:47:48,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:47:48,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:47:48,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:47:48,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:47:48,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:47:48,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:47:48,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:47:48,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:47:48,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:47:48,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:47:48,589 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:47:48,590 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:47:48,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:47:48,590 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:47:48,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:47:48,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:47:48,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:47:48,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:47:48,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:48,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:47:48,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:47:48,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:47:48,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:47:48,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:47:48,595 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:47:48,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:47:48,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:47:48,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:47:48,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:47:48,596 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_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f [2023-11-26 10:47:48,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:47:48,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:47:48,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:47:48,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:47:48,945 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:47:48,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2023-11-26 10:47:52,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:47:52,359 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:47:52,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2023-11-26 10:47:52,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/data/77e717570/f15960c2dc1c4a7c9cc6559d2ddb3d0b/FLAGf37d0089f [2023-11-26 10:47:52,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/data/77e717570/f15960c2dc1c4a7c9cc6559d2ddb3d0b [2023-11-26 10:47:52,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:47:52,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:47:52,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:52,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:47:52,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:47:52,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:52" (1/1) ... [2023-11-26 10:47:52,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db196e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:52, skipping insertion in model container [2023-11-26 10:47:52,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:47:52" (1/1) ... [2023-11-26 10:47:52,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:52,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:52,916 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:52,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:53,045 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:53,046 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:47:53,051 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:53,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53 WrapperNode [2023-11-26 10:47:53,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:53,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:53,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:53,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:53,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,121 INFO L138 Inliner]: procedures = 176, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2023-11-26 10:47:53,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:53,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:53,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:53,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:53,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,163 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 1, 1, 1, 15]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 0, 1]. The 8 writes are split as follows [0, 1, 1, 1, 5]. [2023-11-26 10:47:53,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:53,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:53,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:53,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:53,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (1/1) ... [2023-11-26 10:47:53,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:53,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:53,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:53,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:53,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:47:53,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:47:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:47:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:47:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:47:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:47:53,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:47:53,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:53,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-26 10:47:53,335 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-26 10:47:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-26 10:47:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-26 10:47:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-26 10:47:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-26 10:47:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:47:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:47:53,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:47:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:47:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:47:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:47:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:53,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:53,342 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:47:53,569 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:53,572 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:54,067 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:54,537 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:54,538 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:47:54,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:54 BoogieIcfgContainer [2023-11-26 10:47:54,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:54,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:54,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:54,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:54,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:47:52" (1/3) ... [2023-11-26 10:47:54,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f91cfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:54, skipping insertion in model container [2023-11-26 10:47:54,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:53" (2/3) ... [2023-11-26 10:47:54,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f91cfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:54, skipping insertion in model container [2023-11-26 10:47:54,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:54" (3/3) ... [2023-11-26 10:47:54,550 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.i [2023-11-26 10:47:54,562 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:47:54,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:54,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-26 10:47:54,575 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:47:54,648 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:47:54,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2023-11-26 10:47:54,730 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-26 10:47:54,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:54,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 10:47:54,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2023-11-26 10:47:54,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2023-11-26 10:47:54,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:54,777 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;@77f4fc71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:54,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-26 10:47:54,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:54,795 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-26 10:47:54,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:54,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:54,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:54,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:47:54,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:54,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1046956419, now seen corresponding path program 1 times [2023-11-26 10:47:54,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:54,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012052040] [2023-11-26 10:47:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:55,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:55,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:55,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012052040] [2023-11-26 10:47:55,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012052040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:55,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:55,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:47:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789286913] [2023-11-26 10:47:55,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:55,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:55,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:55,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2023-11-26 10:47:55,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-26 10:47:55,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:55,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2023-11-26 10:47:55,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:56,469 INFO L124 PetriNetUnfolderBase]: 2075/3077 cut-off events. [2023-11-26 10:47:56,470 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-26 10:47:56,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6192 conditions, 3077 events. 2075/3077 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 18118 event pairs, 773 based on Foata normal form. 0/2331 useless extension candidates. Maximal degree in co-relation 6181. Up to 2975 conditions per place. [2023-11-26 10:47:56,513 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 37 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2023-11-26 10:47:56,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 197 flow [2023-11-26 10:47:56,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:56,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2023-11-26 10:47:56,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2023-11-26 10:47:56,534 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 83 transitions. [2023-11-26 10:47:56,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 83 transitions. [2023-11-26 10:47:56,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:56,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 83 transitions. [2023-11-26 10:47:56,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2023-11-26 10:47:56,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-26 10:47:56,548 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-26 10:47:56,550 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 83 transitions. [2023-11-26 10:47:56,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 197 flow [2023-11-26 10:47:56,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 10:47:56,564 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2023-11-26 10:47:56,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-11-26 10:47:56,571 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2023-11-26 10:47:56,571 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2023-11-26 10:47:56,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2023-11-26 10:47:56,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:56,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:56,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:56,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:47:56,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 534093311, now seen corresponding path program 1 times [2023-11-26 10:47:56,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:56,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121905308] [2023-11-26 10:47:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:56,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121905308] [2023-11-26 10:47:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121905308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:56,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:56,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:56,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941989195] [2023-11-26 10:47:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:56,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:47:56,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:56,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:47:56,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:56,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2023-11-26 10:47:56,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2023-11-26 10:47:56,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:56,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2023-11-26 10:47:56,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:57,573 INFO L124 PetriNetUnfolderBase]: 1535/2349 cut-off events. [2023-11-26 10:47:57,573 INFO L125 PetriNetUnfolderBase]: For 191/196 co-relation queries the response was YES. [2023-11-26 10:47:57,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5540 conditions, 2349 events. 1535/2349 cut-off events. For 191/196 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 13171 event pairs, 267 based on Foata normal form. 2/1973 useless extension candidates. Maximal degree in co-relation 5529. Up to 1150 conditions per place. [2023-11-26 10:47:57,602 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 47 selfloop transitions, 10 changer transitions 3/69 dead transitions. [2023-11-26 10:47:57,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 69 transitions, 312 flow [2023-11-26 10:47:57,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:47:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:47:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2023-11-26 10:47:57,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2023-11-26 10:47:57,605 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 111 transitions. [2023-11-26 10:47:57,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 111 transitions. [2023-11-26 10:47:57,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:57,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 111 transitions. [2023-11-26 10:47:57,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2023-11-26 10:47:57,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-26 10:47:57,610 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-26 10:47:57,610 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 111 transitions. [2023-11-26 10:47:57,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 69 transitions, 312 flow [2023-11-26 10:47:57,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 69 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:47:57,614 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 168 flow [2023-11-26 10:47:57,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-11-26 10:47:57,616 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2023-11-26 10:47:57,616 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 168 flow [2023-11-26 10:47:57,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2023-11-26 10:47:57,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:57,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:57,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:57,617 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:47:57,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash -671245834, now seen corresponding path program 1 times [2023-11-26 10:47:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:57,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720384297] [2023-11-26 10:47:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:57,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:57,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720384297] [2023-11-26 10:47:57,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720384297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:57,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:57,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:57,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605301842] [2023-11-26 10:47:57,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:57,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:47:57,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:57,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:47:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:47:57,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2023-11-26 10:47:57,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2023-11-26 10:47:57,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:57,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2023-11-26 10:47:57,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:58,203 INFO L124 PetriNetUnfolderBase]: 775/1209 cut-off events. [2023-11-26 10:47:58,204 INFO L125 PetriNetUnfolderBase]: For 1599/1613 co-relation queries the response was YES. [2023-11-26 10:47:58,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3191 conditions, 1209 events. 775/1209 cut-off events. For 1599/1613 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6045 event pairs, 189 based on Foata normal form. 229/1428 useless extension candidates. Maximal degree in co-relation 3177. Up to 1106 conditions per place. [2023-11-26 10:47:58,220 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 34 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-11-26 10:47:58,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 230 flow [2023-11-26 10:47:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:47:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-26 10:47:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2023-11-26 10:47:58,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5855263157894737 [2023-11-26 10:47:58,248 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 89 transitions. [2023-11-26 10:47:58,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 89 transitions. [2023-11-26 10:47:58,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:58,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 89 transitions. [2023-11-26 10:47:58,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.25) internal successors, (89), 4 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) [2023-11-26 10:47:58,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-26 10:47:58,254 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-26 10:47:58,254 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 168 flow. Second operand 4 states and 89 transitions. [2023-11-26 10:47:58,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 230 flow [2023-11-26 10:47:58,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 212 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-26 10:47:58,269 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 116 flow [2023-11-26 10:47:58,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2023-11-26 10:47:58,271 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2023-11-26 10:47:58,271 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 116 flow [2023-11-26 10:47:58,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2023-11-26 10:47:58,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:58,272 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] [2023-11-26 10:47:58,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:58,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-26 10:47:58,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash -101291028, now seen corresponding path program 1 times [2023-11-26 10:47:58,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:58,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578967044] [2023-11-26 10:47:58,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:58,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578967044] [2023-11-26 10:47:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578967044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:58,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:58,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:58,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964971132] [2023-11-26 10:47:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:58,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:58,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:58,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:58,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2023-11-26 10:47:58,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2023-11-26 10:47:58,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:58,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2023-11-26 10:47:58,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:59,011 INFO L124 PetriNetUnfolderBase]: 643/1005 cut-off events. [2023-11-26 10:47:59,012 INFO L125 PetriNetUnfolderBase]: For 645/655 co-relation queries the response was YES. [2023-11-26 10:47:59,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2408 conditions, 1005 events. 643/1005 cut-off events. For 645/655 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4945 event pairs, 41 based on Foata normal form. 76/1071 useless extension candidates. Maximal degree in co-relation 2395. Up to 504 conditions per place. [2023-11-26 10:47:59,017 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-11-26 10:47:59,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 250 flow [2023-11-26 10:47:59,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:47:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:47:59,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2023-11-26 10:47:59,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5842105263157895 [2023-11-26 10:47:59,021 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 111 transitions. [2023-11-26 10:47:59,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 111 transitions. [2023-11-26 10:47:59,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:59,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 111 transitions. [2023-11-26 10:47:59,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2023-11-26 10:47:59,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2023-11-26 10:47:59,026 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2023-11-26 10:47:59,026 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 116 flow. Second operand 5 states and 111 transitions. [2023-11-26 10:47:59,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 250 flow [2023-11-26 10:47:59,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 57 transitions, 235 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:59,030 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-11-26 10:47:59,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-11-26 10:47:59,033 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2023-11-26 10:47:59,033 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-11-26 10:47:59,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2023-11-26 10:47:59,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-26 10:47:59,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-26 10:47:59,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-26 10:47:59,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-26 10:47:59,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-26 10:47:59,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-26 10:47:59,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-26 10:47:59,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-26 10:47:59,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-26 10:47:59,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-26 10:47:59,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-26 10:47:59,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-26 10:47:59,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-26 10:47:59,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-26 10:47:59,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-26 10:47:59,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:47:59,055 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:47:59,062 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:47:59,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:59,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:59 BasicIcfg [2023-11-26 10:47:59,078 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:59,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:59,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:59,080 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:59,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:54" (3/4) ... [2023-11-26 10:47:59,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:47:59,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-26 10:47:59,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-26 10:47:59,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-26 10:47:59,101 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2023-11-26 10:47:59,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-26 10:47:59,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 10:47:59,103 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:47:59,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:47:59,248 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:47:59,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:59,249 INFO L158 Benchmark]: Toolchain (without parser) took 6843.33ms. Allocated memory was 148.9MB in the beginning and 249.6MB in the end (delta: 100.7MB). Free memory was 101.9MB in the beginning and 182.6MB in the end (delta: -80.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,249 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 104.9MB. Free memory was 55.1MB in the beginning and 55.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:59,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.16ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 77.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.54ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 75.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,250 INFO L158 Benchmark]: Boogie Preprocessor took 70.90ms. Allocated memory is still 148.9MB. Free memory was 75.4MB in the beginning and 71.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,251 INFO L158 Benchmark]: RCFGBuilder took 1344.66ms. Allocated memory is still 148.9MB. Free memory was 71.2MB in the beginning and 89.3MB in the end (delta: -18.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,252 INFO L158 Benchmark]: TraceAbstraction took 4536.44ms. Allocated memory was 148.9MB in the beginning and 249.6MB in the end (delta: 100.7MB). Free memory was 88.2MB in the beginning and 187.8MB in the end (delta: -99.6MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,252 INFO L158 Benchmark]: Witness Printer took 168.23ms. Allocated memory is still 249.6MB. Free memory was 187.8MB in the beginning and 182.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:47:59,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 104.9MB. Free memory was 55.1MB in the beginning and 55.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.16ms. Allocated memory is still 148.9MB. Free memory was 101.9MB in the beginning and 77.8MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.54ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 75.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.90ms. Allocated memory is still 148.9MB. Free memory was 75.4MB in the beginning and 71.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1344.66ms. Allocated memory is still 148.9MB. Free memory was 71.2MB in the beginning and 89.3MB in the end (delta: -18.1MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4536.44ms. Allocated memory was 148.9MB in the beginning and 249.6MB in the end (delta: 100.7MB). Free memory was 88.2MB in the beginning and 187.8MB in the end (delta: -99.6MB). Peak memory consumption was 123.7MB. Max. memory is 16.1GB. * Witness Printer took 168.23ms. Allocated memory is still 249.6MB. Free memory was 187.8MB in the beginning and 182.6MB 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: 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, 68 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: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 261 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=168occurred in iteration=2, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 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! [2023-11-26 10:47:59,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eace098-9106-48e9-9eaf-2ebfb3cb532b/bin/uautomizer-verify-VRDe98Ueme/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