./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.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_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/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_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/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_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:50:51,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:50:51,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:50:51,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:50:51,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:50:51,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:50:51,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:50:51,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:50:51,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:50:51,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:50:51,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:50:51,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:50:51,862 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:50:51,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:50:51,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:50:51,865 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:50:51,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:50:51,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:50:51,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:50:51,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:50:51,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:50:51,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:50:51,869 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:50:51,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:50:51,870 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:50:51,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:50:51,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:50:51,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:50:51,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:50:51,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:50:51,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:51,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:50:51,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:50:51,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:50:51,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:50:51,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:50:51,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:50:51,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:50:51,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:50:51,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:50:51,878 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:50:51,878 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_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2023-11-06 22:50:52,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:50:52,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:50:52,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:50:52,260 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:50:52,261 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:50:52,262 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2023-11-06 22:50:55,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:50:55,831 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:50:55,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2023-11-06 22:50:55,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/data/05d4a9841/d32d11af852c4f0fb816d77bcd2816fd/FLAG9d22d6040 [2023-11-06 22:50:55,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/data/05d4a9841/d32d11af852c4f0fb816d77bcd2816fd [2023-11-06 22:50:55,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:50:55,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:50:55,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:55,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:50:55,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:50:55,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:55" (1/1) ... [2023-11-06 22:50:55,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a003e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:55, skipping insertion in model container [2023-11-06 22:50:55,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:50:55" (1/1) ... [2023-11-06 22:50:55,995 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:50:56,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:56,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:50:56,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:50:56,665 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:50:56,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56 WrapperNode [2023-11-06 22:50:56,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:50:56,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:56,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:50:56,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:50:56,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,722 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-11-06 22:50:56,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:50:56,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:50:56,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:50:56,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:50:56,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:50:56,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:50:56,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:50:56,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:50:56,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (1/1) ... [2023-11-06 22:50:56,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:50:56,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:50:56,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:50:56,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:50:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:50:56,832 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:50:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:50:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:50:56,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:50:56,834 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 22:50:57,014 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:50:57,017 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:50:57,261 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:50:57,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:50:57,275 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:50:57,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:57 BoogieIcfgContainer [2023-11-06 22:50:57,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:50:57,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:50:57,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:50:57,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:50:57,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:50:55" (1/3) ... [2023-11-06 22:50:57,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455c97eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:57, skipping insertion in model container [2023-11-06 22:50:57,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:50:56" (2/3) ... [2023-11-06 22:50:57,290 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455c97eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:50:57, skipping insertion in model container [2023-11-06 22:50:57,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:57" (3/3) ... [2023-11-06 22:50:57,293 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2023-11-06 22:50:57,303 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:50:57,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:50:57,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:50:57,316 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:50:57,396 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:50:57,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 126 flow [2023-11-06 22:50:57,508 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-06 22:50:57,508 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:50:57,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:50:57,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 61 transitions, 126 flow [2023-11-06 22:50:57,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2023-11-06 22:50:57,523 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:50:57,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 123 flow [2023-11-06 22:50:57,549 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 123 flow [2023-11-06 22:50:57,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 123 flow [2023-11-06 22:50:57,590 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-06 22:50:57,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:50:57,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:50:57,591 INFO L119 LiptonReduction]: Number of co-enabled transitions 330 [2023-11-06 22:51:01,303 INFO L134 LiptonReduction]: Checked pairs total: 272 [2023-11-06 22:51:01,303 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-11-06 22:51:01,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:51:01,325 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;@2f25ce3f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:51:01,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-06 22:51:01,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:51:01,327 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:51:01,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:51:01,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:01,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:51:01,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:51:01,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:01,335 INFO L85 PathProgramCache]: Analyzing trace with hash 231, now seen corresponding path program 1 times [2023-11-06 22:51:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:01,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677813739] [2023-11-06 22:51:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:01,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:01,472 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 22:51:01,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:01,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677813739] [2023-11-06 22:51:01,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677813739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:01,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:01,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:51:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513101142] [2023-11-06 22:51:01,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:01,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:51:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:01,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:51:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:51:01,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 130 [2023-11-06 22:51:01,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 23 flow. Second operand has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 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 22:51:01,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:01,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 130 [2023-11-06 22:51:01,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:01,576 INFO L124 PetriNetUnfolderBase]: 9/26 cut-off events. [2023-11-06 22:51:01,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:51:01,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 73 event pairs, 9 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 48. Up to 27 conditions per place. [2023-11-06 22:51:01,580 INFO L140 encePairwiseOnDemand]: 128/130 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-11-06 22:51:01,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 35 flow [2023-11-06 22:51:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:51:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:51:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 130 transitions. [2023-11-06 22:51:01,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-06 22:51:01,598 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 130 transitions. [2023-11-06 22:51:01,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 130 transitions. [2023-11-06 22:51:01,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:01,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 130 transitions. [2023-11-06 22:51:01,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 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 22:51:01,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 22:51:01,619 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 22:51:01,621 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 23 flow. Second operand 2 states and 130 transitions. [2023-11-06 22:51:01,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 35 flow [2023-11-06 22:51:01,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:01,625 INFO L231 Difference]: Finished difference. Result has 12 places, 8 transitions, 18 flow [2023-11-06 22:51:01,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=12, PETRI_TRANSITIONS=8} [2023-11-06 22:51:01,632 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-11-06 22:51:01,633 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 18 flow [2023-11-06 22:51:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 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 22:51:01,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:01,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:51:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:51:01,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:51:01,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:01,646 INFO L85 PathProgramCache]: Analyzing trace with hash 229207, now seen corresponding path program 1 times [2023-11-06 22:51:01,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:01,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922655657] [2023-11-06 22:51:01,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:01,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:01,886 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 22:51:01,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:01,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922655657] [2023-11-06 22:51:01,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922655657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:01,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:01,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:51:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503742418] [2023-11-06 22:51:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:01,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:51:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:51:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:51:01,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 130 [2023-11-06 22:51:01,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 22:51:01,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:01,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 130 [2023-11-06 22:51:01,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:01,944 INFO L124 PetriNetUnfolderBase]: 3/12 cut-off events. [2023-11-06 22:51:01,944 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:51:01,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 12 events. 3/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 23 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 26. Up to 8 conditions per place. [2023-11-06 22:51:01,945 INFO L140 encePairwiseOnDemand]: 126/130 looper letters, 5 selfloop transitions, 2 changer transitions 2/9 dead transitions. [2023-11-06 22:51:01,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 38 flow [2023-11-06 22:51:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:51:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:51:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2023-11-06 22:51:01,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2023-11-06 22:51:01,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2023-11-06 22:51:01,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2023-11-06 22:51:01,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:01,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2023-11-06 22:51:01,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 22:51:01,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 22:51:01,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 22:51:01,960 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 18 flow. Second operand 3 states and 170 transitions. [2023-11-06 22:51:01,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 38 flow [2023-11-06 22:51:01,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:51:01,962 INFO L231 Difference]: Finished difference. Result has 12 places, 5 transitions, 16 flow [2023-11-06 22:51:01,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=16, PETRI_PLACES=12, PETRI_TRANSITIONS=5} [2023-11-06 22:51:01,966 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -2 predicate places. [2023-11-06 22:51:01,966 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 5 transitions, 16 flow [2023-11-06 22:51:01,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 22:51:01,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:01,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:51:01,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:51:01,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 22:51:01,970 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:01,970 INFO L85 PathProgramCache]: Analyzing trace with hash 229206, now seen corresponding path program 1 times [2023-11-06 22:51:01,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:01,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276225280] [2023-11-06 22:51:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:01,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:02,049 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 22:51:02,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:02,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276225280] [2023-11-06 22:51:02,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276225280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:02,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:02,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:51:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950343818] [2023-11-06 22:51:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:02,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:51:02,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:51:02,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:51:02,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 130 [2023-11-06 22:51:02,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 5 transitions, 16 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 22:51:02,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:02,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 130 [2023-11-06 22:51:02,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:02,069 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-06 22:51:02,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:51:02,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-06 22:51:02,070 INFO L140 encePairwiseOnDemand]: 127/130 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2023-11-06 22:51:02,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 3 transitions, 18 flow [2023-11-06 22:51:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:51:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:51:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2023-11-06 22:51:02,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4512820512820513 [2023-11-06 22:51:02,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 176 transitions. [2023-11-06 22:51:02,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 176 transitions. [2023-11-06 22:51:02,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:02,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 176 transitions. [2023-11-06 22:51:02,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 22:51:02,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 22:51:02,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 22:51:02,077 INFO L175 Difference]: Start difference. First operand has 12 places, 5 transitions, 16 flow. Second operand 3 states and 176 transitions. [2023-11-06 22:51:02,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 3 transitions, 18 flow [2023-11-06 22:51:02,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 3 transitions, 14 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:51:02,078 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2023-11-06 22:51:02,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2023-11-06 22:51:02,079 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -5 predicate places. [2023-11-06 22:51:02,079 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2023-11-06 22:51:02,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 22:51:02,082 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-06 22:51:02,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-06 22:51:02,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-06 22:51:02,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-06 22:51:02,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-06 22:51:02,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-06 22:51:02,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-11-06 22:51:02,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-06 22:51:02,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-06 22:51:02,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:51:02,085 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:51:02,091 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:51:02,091 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:51:02,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:51:02 BasicIcfg [2023-11-06 22:51:02,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:51:02,097 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:51:02,097 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:51:02,097 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:51:02,098 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:50:57" (3/4) ... [2023-11-06 22:51:02,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:51:02,104 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-06 22:51:02,109 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 22:51:02,109 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:51:02,109 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:51:02,159 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:51:02,160 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:51:02,160 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:51:02,161 INFO L158 Benchmark]: Toolchain (without parser) took 6255.15ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 105.8MB in the beginning and 63.0MB in the end (delta: 42.8MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,161 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:51:02,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.85ms. Allocated memory is still 134.2MB. Free memory was 105.1MB in the beginning and 78.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.20ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 75.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,162 INFO L158 Benchmark]: Boogie Preprocessor took 29.40ms. Allocated memory is still 134.2MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,163 INFO L158 Benchmark]: RCFGBuilder took 525.04ms. Allocated memory is still 134.2MB. Free memory was 74.4MB in the beginning and 61.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,163 INFO L158 Benchmark]: TraceAbstraction took 4814.92ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 61.1MB in the beginning and 66.2MB in the end (delta: -5.1MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,164 INFO L158 Benchmark]: Witness Printer took 62.86ms. Allocated memory is still 161.5MB. Free memory was 66.2MB in the beginning and 63.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:51:02,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory was 69.1MB in the beginning and 69.0MB in the end (delta: 52.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.85ms. Allocated memory is still 134.2MB. Free memory was 105.1MB in the beginning and 78.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.20ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 75.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.40ms. Allocated memory is still 134.2MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.04ms. Allocated memory is still 134.2MB. Free memory was 74.4MB in the beginning and 61.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4814.92ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 61.1MB in the beginning and 66.2MB in the end (delta: -5.1MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 62.86ms. Allocated memory is still 161.5MB. Free memory was 66.2MB in the beginning and 63.0MB 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: 3.8s, 64 PlacesBefore, 14 PlacesAfterwards, 60 TransitionsBefore, 10 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 272, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 171, independent conditional: 0, independent unconditional: 171, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 272, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:51:02,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b11a1f2-f8e3-4bff-a2e8-c9f2b6b8e8c4/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