./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:09:55,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:09:55,709 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 23:09:55,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:09:55,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:09:55,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:09:55,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:09:55,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:09:55,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:09:55,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:09:55,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:09:55,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:09:55,777 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:09:55,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:09:55,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:09:55,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:09:55,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:09:55,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:09:55,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:09:55,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:09:55,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:09:55,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:09:55,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:09:55,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:09:55,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:09:55,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:09:55,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:09:55,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:09:55,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:09:55,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:09:55,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:55,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:09:55,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:09:55,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:09:55,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:09:55,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:09:55,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:09:55,790 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:09:55,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:09:55,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:09:55,790 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:09:55,791 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_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 [2023-11-06 23:09:56,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:09:56,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:09:56,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:09:56,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:09:56,180 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:09:56,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2023-11-06 23:09:59,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:09:59,590 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:09:59,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2023-11-06 23:09:59,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/data/7e5baed96/0f65efc8b7fe4f3d8bf647f1231bdf91/FLAG084ba72d6 [2023-11-06 23:09:59,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/data/7e5baed96/0f65efc8b7fe4f3d8bf647f1231bdf91 [2023-11-06 23:09:59,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:09:59,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:09:59,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:59,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:09:59,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:09:59,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:59" (1/1) ... [2023-11-06 23:09:59,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63568f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:59, skipping insertion in model container [2023-11-06 23:09:59,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:59" (1/1) ... [2023-11-06 23:09:59,755 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:10:00,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:00,419 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:10:00,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:10:00,647 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:10:00,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00 WrapperNode [2023-11-06 23:10:00,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:10:00,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:00,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:10:00,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:10:00,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,742 INFO L138 Inliner]: procedures = 264, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 51 [2023-11-06 23:10:00,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:10:00,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:10:00,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:10:00,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:10:00,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:10:00,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:10:00,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:10:00,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:10:00,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (1/1) ... [2023-11-06 23:10:00,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:10:00,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:10:00,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:10:00,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:10:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:10:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:10:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:10:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:10:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:10:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:10:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:10:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:10:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:10:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:10:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:10:00,912 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:10:01,058 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:10:01,060 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:10:01,194 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:10:01,201 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:10:01,201 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:10:01,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:01 BoogieIcfgContainer [2023-11-06 23:10:01,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:10:01,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:10:01,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:10:01,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:10:01,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:09:59" (1/3) ... [2023-11-06 23:10:01,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29af729a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:01, skipping insertion in model container [2023-11-06 23:10:01,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:10:00" (2/3) ... [2023-11-06 23:10:01,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29af729a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:10:01, skipping insertion in model container [2023-11-06 23:10:01,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:01" (3/3) ... [2023-11-06 23:10:01,212 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2023-11-06 23:10:01,219 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:10:01,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:10:01,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 23:10:01,228 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:10:01,275 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 23:10:01,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 57 transitions, 121 flow [2023-11-06 23:10:01,354 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2023-11-06 23:10:01,354 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:10:01,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 0/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-06 23:10:01,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 57 transitions, 121 flow [2023-11-06 23:10:01,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 48 transitions, 99 flow [2023-11-06 23:10:01,365 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:10:01,376 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 48 transitions, 99 flow [2023-11-06 23:10:01,379 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 48 transitions, 99 flow [2023-11-06 23:10:01,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 48 transitions, 99 flow [2023-11-06 23:10:01,395 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2023-11-06 23:10:01,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:01,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:10:01,397 INFO L119 LiptonReduction]: Number of co-enabled transitions 480 [2023-11-06 23:10:02,991 INFO L134 LiptonReduction]: Checked pairs total: 911 [2023-11-06 23:10:02,991 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-11-06 23:10:03,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:10:03,014 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=LoopsAndPotentialCycles, 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;@29d3b053, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:10:03,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-06 23:10:03,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:10:03,018 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-06 23:10:03,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:03,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:03,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 23:10:03,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:03,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash 6271091, now seen corresponding path program 1 times [2023-11-06 23:10:03,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:03,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812644359] [2023-11-06 23:10:03,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:03,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:03,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812644359] [2023-11-06 23:10:03,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812644359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:03,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:03,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 23:10:03,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592998396] [2023-11-06 23:10:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:03,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:10:03,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:10:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:10:03,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 97 [2023-11-06 23:10:03,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 14 transitions, 31 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2023-11-06 23:10:03,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:03,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 97 [2023-11-06 23:10:03,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:03,518 INFO L124 PetriNetUnfolderBase]: 20/54 cut-off events. [2023-11-06 23:10:03,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:03,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 54 events. 20/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 137 event pairs, 10 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 104. Up to 41 conditions per place. [2023-11-06 23:10:03,522 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 13 selfloop transitions, 3 changer transitions 4/20 dead transitions. [2023-11-06 23:10:03,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 20 transitions, 83 flow [2023-11-06 23:10:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:10:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:10:03,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2023-11-06 23:10:03,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6185567010309279 [2023-11-06 23:10:03,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2023-11-06 23:10:03,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2023-11-06 23:10:03,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:03,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2023-11-06 23:10:03,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2023-11-06 23:10:03,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2023-11-06 23:10:03,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2023-11-06 23:10:03,567 INFO L175 Difference]: Start difference. First operand has 18 places, 14 transitions, 31 flow. Second operand 3 states and 180 transitions. [2023-11-06 23:10:03,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 20 transitions, 83 flow [2023-11-06 23:10:03,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 20 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:10:03,573 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 47 flow [2023-11-06 23:10:03,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-11-06 23:10:03,579 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-11-06 23:10:03,579 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 47 flow [2023-11-06 23:10:03,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2023-11-06 23:10:03,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:03,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:03,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:10:03,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:03,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:03,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2139710325, now seen corresponding path program 1 times [2023-11-06 23:10:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:03,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414970303] [2023-11-06 23:10:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:03,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:03,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:03,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414970303] [2023-11-06 23:10:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414970303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:03,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:03,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:10:03,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595937348] [2023-11-06 23:10:03,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:03,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:10:03,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:03,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:10:03,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:10:03,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 97 [2023-11-06 23:10:03,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2023-11-06 23:10:03,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:03,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 97 [2023-11-06 23:10:03,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:03,752 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-06 23:10:03,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:03,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 25 event pairs, 0 based on Foata normal form. 6/22 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2023-11-06 23:10:03,752 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 10 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2023-11-06 23:10:03,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 75 flow [2023-11-06 23:10:03,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:10:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:10:03,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2023-11-06 23:10:03,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.570446735395189 [2023-11-06 23:10:03,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2023-11-06 23:10:03,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2023-11-06 23:10:03,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:03,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2023-11-06 23:10:03,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2023-11-06 23:10:03,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2023-11-06 23:10:03,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2023-11-06 23:10:03,759 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 47 flow. Second operand 3 states and 166 transitions. [2023-11-06 23:10:03,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 75 flow [2023-11-06 23:10:03,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 72 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:10:03,760 INFO L231 Difference]: Finished difference. Result has 21 places, 14 transitions, 52 flow [2023-11-06 23:10:03,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2023-11-06 23:10:03,761 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 3 predicate places. [2023-11-06 23:10:03,762 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 52 flow [2023-11-06 23:10:03,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2023-11-06 23:10:03,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:03,762 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:10:03,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:03,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1899791641, now seen corresponding path program 1 times [2023-11-06 23:10:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:03,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642074205] [2023-11-06 23:10:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:03,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:03,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642074205] [2023-11-06 23:10:03,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642074205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:03,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:03,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:10:03,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265910297] [2023-11-06 23:10:03,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:03,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:03,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:03,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:03,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:03,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2023-11-06 23:10:03,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 52 flow. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-06 23:10:03,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:03,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2023-11-06 23:10:03,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:04,036 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-06 23:10:04,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:04,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 21 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2023-11-06 23:10:04,037 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 10 selfloop transitions, 5 changer transitions 2/17 dead transitions. [2023-11-06 23:10:04,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 94 flow [2023-11-06 23:10:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:10:04,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 258 transitions. [2023-11-06 23:10:04,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319587628865979 [2023-11-06 23:10:04,046 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 258 transitions. [2023-11-06 23:10:04,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 258 transitions. [2023-11-06 23:10:04,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:04,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 258 transitions. [2023-11-06 23:10:04,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.6) internal successors, (258), 5 states have internal predecessors, (258), 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) [2023-11-06 23:10:04,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,055 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,055 INFO L175 Difference]: Start difference. First operand has 21 places, 14 transitions, 52 flow. Second operand 5 states and 258 transitions. [2023-11-06 23:10:04,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 94 flow [2023-11-06 23:10:04,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:10:04,057 INFO L231 Difference]: Finished difference. Result has 23 places, 13 transitions, 54 flow [2023-11-06 23:10:04,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2023-11-06 23:10:04,059 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 5 predicate places. [2023-11-06 23:10:04,062 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 13 transitions, 54 flow [2023-11-06 23:10:04,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-06 23:10:04,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:04,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:04,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:10:04,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:04,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1899791651, now seen corresponding path program 1 times [2023-11-06 23:10:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932872072] [2023-11-06 23:10:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:04,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:04,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:04,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932872072] [2023-11-06 23:10:04,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932872072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:04,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:04,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:10:04,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503298522] [2023-11-06 23:10:04,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:04,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:04,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:04,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:04,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2023-11-06 23:10:04,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 13 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-06 23:10:04,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:04,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2023-11-06 23:10:04,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:04,209 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-06 23:10:04,209 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:10:04,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2023-11-06 23:10:04,210 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 6 selfloop transitions, 3 changer transitions 6/15 dead transitions. [2023-11-06 23:10:04,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 15 transitions, 88 flow [2023-11-06 23:10:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:10:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 256 transitions. [2023-11-06 23:10:04,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5278350515463918 [2023-11-06 23:10:04,212 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 256 transitions. [2023-11-06 23:10:04,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 256 transitions. [2023-11-06 23:10:04,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:04,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 256 transitions. [2023-11-06 23:10:04,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2023-11-06 23:10:04,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,216 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,216 INFO L175 Difference]: Start difference. First operand has 23 places, 13 transitions, 54 flow. Second operand 5 states and 256 transitions. [2023-11-06 23:10:04,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 15 transitions, 88 flow [2023-11-06 23:10:04,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 15 transitions, 83 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:10:04,218 INFO L231 Difference]: Finished difference. Result has 24 places, 9 transitions, 41 flow [2023-11-06 23:10:04,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=41, PETRI_PLACES=24, PETRI_TRANSITIONS=9} [2023-11-06 23:10:04,219 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 6 predicate places. [2023-11-06 23:10:04,219 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 9 transitions, 41 flow [2023-11-06 23:10:04,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-06 23:10:04,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:04,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:04,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:10:04,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:04,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:04,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1874142581, now seen corresponding path program 1 times [2023-11-06 23:10:04,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:04,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743207039] [2023-11-06 23:10:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:04,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:04,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:04,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743207039] [2023-11-06 23:10:04,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743207039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:04,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:04,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:10:04,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007278321] [2023-11-06 23:10:04,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:04,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:04,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:04,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 97 [2023-11-06 23:10:04,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 9 transitions, 41 flow. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 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) [2023-11-06 23:10:04,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:04,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 97 [2023-11-06 23:10:04,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:04,428 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 23:10:04,428 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 23:10:04,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 9 events. 0/9 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-06 23:10:04,429 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 5 selfloop transitions, 3 changer transitions 1/9 dead transitions. [2023-11-06 23:10:04,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 9 transitions, 56 flow [2023-11-06 23:10:04,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:04,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:10:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 240 transitions. [2023-11-06 23:10:04,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4948453608247423 [2023-11-06 23:10:04,432 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 240 transitions. [2023-11-06 23:10:04,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 240 transitions. [2023-11-06 23:10:04,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:04,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 240 transitions. [2023-11-06 23:10:04,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 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) [2023-11-06 23:10:04,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,438 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,438 INFO L175 Difference]: Start difference. First operand has 24 places, 9 transitions, 41 flow. Second operand 5 states and 240 transitions. [2023-11-06 23:10:04,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 9 transitions, 56 flow [2023-11-06 23:10:04,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 9 transitions, 46 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-06 23:10:04,440 INFO L231 Difference]: Finished difference. Result has 18 places, 8 transitions, 31 flow [2023-11-06 23:10:04,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=31, PETRI_PLACES=18, PETRI_TRANSITIONS=8} [2023-11-06 23:10:04,444 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 0 predicate places. [2023-11-06 23:10:04,444 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 8 transitions, 31 flow [2023-11-06 23:10:04,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 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) [2023-11-06 23:10:04,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:04,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:04,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:10:04,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-06 23:10:04,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1874142575, now seen corresponding path program 1 times [2023-11-06 23:10:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244044078] [2023-11-06 23:10:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:04,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:04,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244044078] [2023-11-06 23:10:04,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244044078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:04,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:04,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:10:04,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741142370] [2023-11-06 23:10:04,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:04,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:10:04,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:10:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:04,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 97 [2023-11-06 23:10:04,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 8 transitions, 31 flow. Second operand has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 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) [2023-11-06 23:10:04,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:04,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 97 [2023-11-06 23:10:04,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:04,645 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-06 23:10:04,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:04,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-06 23:10:04,646 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-11-06 23:10:04,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 8 transitions, 46 flow [2023-11-06 23:10:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 23:10:04,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 239 transitions. [2023-11-06 23:10:04,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4927835051546392 [2023-11-06 23:10:04,649 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 239 transitions. [2023-11-06 23:10:04,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 239 transitions. [2023-11-06 23:10:04,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:04,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 239 transitions. [2023-11-06 23:10:04,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 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) [2023-11-06 23:10:04,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,654 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2023-11-06 23:10:04,654 INFO L175 Difference]: Start difference. First operand has 18 places, 8 transitions, 31 flow. Second operand 5 states and 239 transitions. [2023-11-06 23:10:04,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 8 transitions, 46 flow [2023-11-06 23:10:04,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 8 transitions, 39 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 23:10:04,656 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-11-06 23:10:04,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-11-06 23:10:04,659 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -2 predicate places. [2023-11-06 23:10:04,659 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-11-06 23:10:04,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.6) internal successors, (238), 5 states have internal predecessors, (238), 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) [2023-11-06 23:10:04,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-06 23:10:04,665 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-06 23:10:04,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-06 23:10:04,666 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-06 23:10:04,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-06 23:10:04,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-06 23:10:04,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-06 23:10:04,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:10:04,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 23:10:04,675 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:10:04,676 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:10:04,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:10:04 BasicIcfg [2023-11-06 23:10:04,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:10:04,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:10:04,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:10:04,681 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:10:04,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:10:01" (3/4) ... [2023-11-06 23:10:04,683 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 23:10:04,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 23:10:04,694 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-06 23:10:04,694 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:10:04,694 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 23:10:04,757 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:10:04,757 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 23:10:04,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:10:04,758 INFO L158 Benchmark]: Toolchain (without parser) took 5102.62ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 105.0MB in the beginning and 121.1MB in the end (delta: -16.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,758 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:10:04,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1000.36ms. Allocated memory is still 151.0MB. Free memory was 105.0MB in the beginning and 115.0MB in the end (delta: -10.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.70ms. Allocated memory is still 151.0MB. Free memory was 115.0MB in the beginning and 112.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:10:04,759 INFO L158 Benchmark]: Boogie Preprocessor took 56.23ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 111.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,760 INFO L158 Benchmark]: RCFGBuilder took 402.91ms. Allocated memory is still 151.0MB. Free memory was 111.4MB in the beginning and 99.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,760 INFO L158 Benchmark]: TraceAbstraction took 3474.59ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 98.7MB in the beginning and 124.3MB in the end (delta: -25.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,760 INFO L158 Benchmark]: Witness Printer took 76.36ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:10:04,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1000.36ms. Allocated memory is still 151.0MB. Free memory was 105.0MB in the beginning and 115.0MB in the end (delta: -10.0MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.70ms. Allocated memory is still 151.0MB. Free memory was 115.0MB in the beginning and 112.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.23ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 111.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.91ms. Allocated memory is still 151.0MB. Free memory was 111.4MB in the beginning and 99.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3474.59ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 98.7MB in the beginning and 124.3MB in the end (delta: -25.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 76.36ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 121.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 52 PlacesBefore, 18 PlacesAfterwards, 48 TransitionsBefore, 14 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 645, independent: 562, independent conditional: 0, independent unconditional: 562, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 294, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 645, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 294, unknown conditional: 0, unknown unconditional: 294] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 75 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 30 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=3, InterpolantAutomatonStates: 26, 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, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 23:10:04,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9ae3a0a-e1ba-481d-8989-fd03ba290cff/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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