./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:03,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:04,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:47:04,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:04,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:04,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:04,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:04,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:04,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:04,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:04,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:04,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:04,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:04,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:04,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:04,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:04,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:04,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:04,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:04,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:04,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:04,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:04,091 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:47:04,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:04,093 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:04,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:04,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:04,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:04,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:04,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:04,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:04,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:04,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:04,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:04,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:04,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:04,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:04,100 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:04,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:04,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:04,101 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:04,102 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_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee [2023-11-19 07:47:04,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:04,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:04,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:04,431 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:04,432 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:04,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2023-11-19 07:47:07,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:07,872 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:07,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2023-11-19 07:47:07,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/data/833f4f34f/1b6d44d193454701b27ed7d1bab9348f/FLAG9d3fa60b8 [2023-11-19 07:47:07,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/data/833f4f34f/1b6d44d193454701b27ed7d1bab9348f [2023-11-19 07:47:07,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:07,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:07,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:07,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:07,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:07,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac1f068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:07, skipping insertion in model container [2023-11-19 07:47:07,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:07" (1/1) ... [2023-11-19 07:47:07,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:08,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:08,440 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:08,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:08,584 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:08,584 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:47:08,592 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:08,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08 WrapperNode [2023-11-19 07:47:08,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:08,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:08,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:08,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:08,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,680 INFO L138 Inliner]: procedures = 177, calls = 90, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 186 [2023-11-19 07:47:08,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:08,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:08,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:08,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:08,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:08,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:08,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:08,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:08,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (1/1) ... [2023-11-19 07:47:08,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:08,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:08,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:08,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:08,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:47:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:08,941 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:47:08,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:47:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:47:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:47:08,942 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:47:08,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:47:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:47:08,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:47:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:47:08,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:08,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:08,947 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:09,167 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:09,169 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:09,750 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:10,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:10,236 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:47:10,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:10 BoogieIcfgContainer [2023-11-19 07:47:10,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:10,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:10,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:10,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:10,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:07" (1/3) ... [2023-11-19 07:47:10,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd55e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:10, skipping insertion in model container [2023-11-19 07:47:10,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:08" (2/3) ... [2023-11-19 07:47:10,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd55e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:10, skipping insertion in model container [2023-11-19 07:47:10,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:10" (3/3) ... [2023-11-19 07:47:10,249 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.opt.i [2023-11-19 07:47:10,259 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:10,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:10,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:47:10,271 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:10,369 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:10,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 159 transitions, 334 flow [2023-11-19 07:47:10,527 INFO L124 PetriNetUnfolderBase]: 3/155 cut-off events. [2023-11-19 07:47:10,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:10,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 155 events. 3/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:47:10,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 159 transitions, 334 flow [2023-11-19 07:47:10,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 155 transitions, 322 flow [2023-11-19 07:47:10,554 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:10,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 155 transitions, 322 flow [2023-11-19 07:47:10,578 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 155 transitions, 322 flow [2023-11-19 07:47:10,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 155 transitions, 322 flow [2023-11-19 07:47:10,622 INFO L124 PetriNetUnfolderBase]: 3/155 cut-off events. [2023-11-19 07:47:10,622 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:10,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 155 events. 3/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2023-11-19 07:47:10,628 INFO L119 LiptonReduction]: Number of co-enabled transitions 4246 [2023-11-19 07:47:21,107 INFO L134 LiptonReduction]: Checked pairs total: 16437 [2023-11-19 07:47:21,107 INFO L136 LiptonReduction]: Total number of compositions: 134 [2023-11-19 07:47:21,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:21,130 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43e749, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:21,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:47:21,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:21,136 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:47:21,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:21,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:21,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:21,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:47:21,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:21,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1086438761, now seen corresponding path program 1 times [2023-11-19 07:47:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:21,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039727120] [2023-11-19 07:47:21,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:21,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:21,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:21,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039727120] [2023-11-19 07:47:21,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039727120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:21,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:21,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343738827] [2023-11-19 07:47:21,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:21,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:21,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 293 [2023-11-19 07:47:21,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-11-19 07:47:21,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:21,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 293 [2023-11-19 07:47:21,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:25,434 INFO L124 PetriNetUnfolderBase]: 13117/18264 cut-off events. [2023-11-19 07:47:25,434 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2023-11-19 07:47:25,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36846 conditions, 18264 events. 13117/18264 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 100012 event pairs, 5485 based on Foata normal form. 870/13446 useless extension candidates. Maximal degree in co-relation 36834. Up to 17243 conditions per place. [2023-11-19 07:47:25,616 INFO L140 encePairwiseOnDemand]: 278/293 looper letters, 49 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2023-11-19 07:47:25,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 55 transitions, 239 flow [2023-11-19 07:47:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2023-11-19 07:47:25,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142207053469852 [2023-11-19 07:47:25,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2023-11-19 07:47:25,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2023-11-19 07:47:25,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:25,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2023-11-19 07:47:25,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 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) [2023-11-19 07:47:25,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2023-11-19 07:47:25,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 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) [2023-11-19 07:47:25,664 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 452 transitions. [2023-11-19 07:47:25,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 55 transitions, 239 flow [2023-11-19 07:47:25,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:47:25,674 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 127 flow [2023-11-19 07:47:25,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:47:25,680 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:47:25,680 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 127 flow [2023-11-19 07:47:25,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-11-19 07:47:25,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:25,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:25,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:25,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:47:25,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:25,683 INFO L85 PathProgramCache]: Analyzing trace with hash -873726358, now seen corresponding path program 1 times [2023-11-19 07:47:25,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:25,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396987332] [2023-11-19 07:47:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:25,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:25,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:25,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396987332] [2023-11-19 07:47:25,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396987332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:25,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:25,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:25,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577174232] [2023-11-19 07:47:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:25,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:25,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:25,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:25,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:25,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 293 [2023-11-19 07:47:25,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2023-11-19 07:47:25,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:25,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 293 [2023-11-19 07:47:25,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:28,252 INFO L124 PetriNetUnfolderBase]: 7737/10824 cut-off events. [2023-11-19 07:47:28,252 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-11-19 07:47:28,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26407 conditions, 10824 events. 7737/10824 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 55400 event pairs, 2597 based on Foata normal form. 0/9122 useless extension candidates. Maximal degree in co-relation 26396. Up to 9802 conditions per place. [2023-11-19 07:47:28,324 INFO L140 encePairwiseOnDemand]: 284/293 looper letters, 45 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2023-11-19 07:47:28,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 249 flow [2023-11-19 07:47:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:47:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 570 transitions. [2023-11-19 07:47:28,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863481228668942 [2023-11-19 07:47:28,329 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 570 transitions. [2023-11-19 07:47:28,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 570 transitions. [2023-11-19 07:47:28,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:28,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 570 transitions. [2023-11-19 07:47:28,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2023-11-19 07:47:28,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-11-19 07:47:28,341 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-11-19 07:47:28,343 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 127 flow. Second operand 4 states and 570 transitions. [2023-11-19 07:47:28,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 249 flow [2023-11-19 07:47:28,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:28,354 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 116 flow [2023-11-19 07:47:28,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-19 07:47:28,355 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-19 07:47:28,355 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 116 flow [2023-11-19 07:47:28,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2023-11-19 07:47:28,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:28,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:28,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:28,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:47:28,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash -873726357, now seen corresponding path program 1 times [2023-11-19 07:47:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138046320] [2023-11-19 07:47:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:28,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138046320] [2023-11-19 07:47:28,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138046320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:28,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:28,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333663950] [2023-11-19 07:47:28,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:28,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:28,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:28,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:28,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 293 [2023-11-19 07:47:28,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2023-11-19 07:47:28,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:28,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 293 [2023-11-19 07:47:28,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:29,400 INFO L124 PetriNetUnfolderBase]: 3148/4631 cut-off events. [2023-11-19 07:47:29,400 INFO L125 PetriNetUnfolderBase]: For 971/971 co-relation queries the response was YES. [2023-11-19 07:47:29,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11260 conditions, 4631 events. 3148/4631 cut-off events. For 971/971 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 22114 event pairs, 995 based on Foata normal form. 135/4416 useless extension candidates. Maximal degree in co-relation 11248. Up to 2381 conditions per place. [2023-11-19 07:47:29,427 INFO L140 encePairwiseOnDemand]: 283/293 looper letters, 59 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2023-11-19 07:47:29,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 69 transitions, 338 flow [2023-11-19 07:47:29,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:29,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:47:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 589 transitions. [2023-11-19 07:47:29,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025597269624573 [2023-11-19 07:47:29,432 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 589 transitions. [2023-11-19 07:47:29,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 589 transitions. [2023-11-19 07:47:29,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:29,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 589 transitions. [2023-11-19 07:47:29,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 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) [2023-11-19 07:47:29,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-11-19 07:47:29,440 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2023-11-19 07:47:29,441 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 116 flow. Second operand 4 states and 589 transitions. [2023-11-19 07:47:29,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 69 transitions, 338 flow [2023-11-19 07:47:29,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 69 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:29,446 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 170 flow [2023-11-19 07:47:29,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:47:29,447 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:47:29,447 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 170 flow [2023-11-19 07:47:29,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2023-11-19 07:47:29,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:29,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:29,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:47:29,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash -302667336, now seen corresponding path program 1 times [2023-11-19 07:47:29,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:29,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776588533] [2023-11-19 07:47:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:29,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:29,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776588533] [2023-11-19 07:47:29,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776588533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:29,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236086294] [2023-11-19 07:47:29,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:29,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:29,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:29,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:29,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 293 [2023-11-19 07:47:29,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 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) [2023-11-19 07:47:29,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:29,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 293 [2023-11-19 07:47:29,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:30,522 INFO L124 PetriNetUnfolderBase]: 2143/3098 cut-off events. [2023-11-19 07:47:30,522 INFO L125 PetriNetUnfolderBase]: For 1806/1806 co-relation queries the response was YES. [2023-11-19 07:47:30,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8635 conditions, 3098 events. 2143/3098 cut-off events. For 1806/1806 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 13617 event pairs, 697 based on Foata normal form. 63/3123 useless extension candidates. Maximal degree in co-relation 8622. Up to 1229 conditions per place. [2023-11-19 07:47:30,544 INFO L140 encePairwiseOnDemand]: 283/293 looper letters, 67 selfloop transitions, 13 changer transitions 4/85 dead transitions. [2023-11-19 07:47:30,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 458 flow [2023-11-19 07:47:30,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:47:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:47:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 734 transitions. [2023-11-19 07:47:30,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010238907849829 [2023-11-19 07:47:30,549 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 734 transitions. [2023-11-19 07:47:30,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 734 transitions. [2023-11-19 07:47:30,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:30,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 734 transitions. [2023-11-19 07:47:30,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 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) [2023-11-19 07:47:30,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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) [2023-11-19 07:47:30,559 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 293.0) internal successors, (1758), 6 states have internal predecessors, (1758), 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) [2023-11-19 07:47:30,560 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 170 flow. Second operand 5 states and 734 transitions. [2023-11-19 07:47:30,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 458 flow [2023-11-19 07:47:30,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 440 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:30,571 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 196 flow [2023-11-19 07:47:30,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-19 07:47:30,572 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-19 07:47:30,573 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 196 flow [2023-11-19 07:47:30,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.2) internal successors, (661), 5 states have internal predecessors, (661), 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) [2023-11-19 07:47:30,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:30,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:30,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:30,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:47:30,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:30,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1201181973, now seen corresponding path program 1 times [2023-11-19 07:47:30,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:30,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096058385] [2023-11-19 07:47:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:30,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:30,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:30,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096058385] [2023-11-19 07:47:30,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096058385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:30,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:30,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:30,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466556284] [2023-11-19 07:47:30,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:30,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:30,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:30,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:30,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:30,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 293 [2023-11-19 07:47:30,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2023-11-19 07:47:30,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:30,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 293 [2023-11-19 07:47:30,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:31,699 INFO L124 PetriNetUnfolderBase]: 2064/2937 cut-off events. [2023-11-19 07:47:31,699 INFO L125 PetriNetUnfolderBase]: For 2150/2150 co-relation queries the response was YES. [2023-11-19 07:47:31,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8406 conditions, 2937 events. 2064/2937 cut-off events. For 2150/2150 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12806 event pairs, 677 based on Foata normal form. 21/2944 useless extension candidates. Maximal degree in co-relation 8392. Up to 1229 conditions per place. [2023-11-19 07:47:31,710 INFO L140 encePairwiseOnDemand]: 283/293 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2023-11-19 07:47:31,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 73 transitions, 390 flow [2023-11-19 07:47:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:31,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:31,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2023-11-19 07:47:31,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4840728100113766 [2023-11-19 07:47:31,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2023-11-19 07:47:31,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2023-11-19 07:47:31,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:31,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2023-11-19 07:47:31,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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) [2023-11-19 07:47:31,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2023-11-19 07:47:31,725 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 293.0) internal successors, (2051), 7 states have internal predecessors, (2051), 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) [2023-11-19 07:47:31,725 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 196 flow. Second operand 6 states and 851 transitions. [2023-11-19 07:47:31,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 73 transitions, 390 flow [2023-11-19 07:47:31,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 73 transitions, 335 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:47:31,763 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-11-19 07:47:31,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-11-19 07:47:31,764 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2023-11-19 07:47:31,764 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-11-19 07:47:31,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2023-11-19 07:47:31,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:47:31,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:47:31,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:47:31,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:47:31,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:47:31,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:47:31,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:47:31,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:47:31,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:47:31,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:47:31,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:47:31,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:47:31,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:47:31,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:47:31,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:47:31,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:47:31,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:47:31,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:47:31,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:47:31,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:47:31,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:31,773 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:47:31,779 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:47:31,779 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:31,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:31 BasicIcfg [2023-11-19 07:47:31,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:31,784 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:31,784 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:31,784 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:31,785 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:10" (3/4) ... [2023-11-19 07:47:31,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:47:31,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:47:31,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:47:31,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:47:31,790 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:47:31,796 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:47:31,796 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:47:31,797 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:47:31,797 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:47:31,894 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:47:31,895 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:47:31,895 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:31,896 INFO L158 Benchmark]: Toolchain (without parser) took 23985.69ms. Allocated memory was 165.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 130.8MB in the beginning and 538.7MB in the end (delta: -407.9MB). Peak memory consumption was 823.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,897 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:31,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.88ms. Allocated memory is still 165.7MB. Free memory was 130.1MB in the beginning and 104.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.77ms. Allocated memory is still 165.7MB. Free memory was 104.9MB in the beginning and 102.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,898 INFO L158 Benchmark]: Boogie Preprocessor took 80.63ms. Allocated memory is still 165.7MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,899 INFO L158 Benchmark]: RCFGBuilder took 1477.83ms. Allocated memory is still 165.7MB. Free memory was 99.4MB in the beginning and 124.1MB in the end (delta: -24.7MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,899 INFO L158 Benchmark]: TraceAbstraction took 21540.83ms. Allocated memory was 165.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 123.1MB in the beginning and 543.9MB in the end (delta: -420.9MB). Peak memory consumption was 811.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,900 INFO L158 Benchmark]: Witness Printer took 111.66ms. Allocated memory is still 1.4GB. Free memory was 543.9MB in the beginning and 538.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:47:31,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.88ms. Allocated memory is still 165.7MB. Free memory was 130.1MB in the beginning and 104.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.77ms. Allocated memory is still 165.7MB. Free memory was 104.9MB in the beginning and 102.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.63ms. Allocated memory is still 165.7MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1477.83ms. Allocated memory is still 165.7MB. Free memory was 99.4MB in the beginning and 124.1MB in the end (delta: -24.7MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * TraceAbstraction took 21540.83ms. Allocated memory was 165.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 123.1MB in the beginning and 543.9MB in the end (delta: -420.9MB). Peak memory consumption was 811.2MB. Max. memory is 16.1GB. * Witness Printer took 111.66ms. Allocated memory is still 1.4GB. Free memory was 543.9MB in the beginning and 538.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5s, 165 PlacesBefore, 48 PlacesAfterwards, 155 TransitionsBefore, 36 TransitionsAfterwards, 4246 CoEnabledTransitionPairs, 8 FixpointIterations, 59 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 134 TotalNumberOfCompositions, 16437 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4752, independent: 4346, independent conditional: 0, independent unconditional: 4346, dependent: 406, dependent conditional: 0, dependent unconditional: 406, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2178, independent: 2125, independent conditional: 0, independent unconditional: 2125, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4752, independent: 2221, independent conditional: 0, independent unconditional: 2221, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 2178, unknown conditional: 0, unknown unconditional: 2178] , Statistics on independence cache: Total cache size (in pairs): 195, Positive cache size: 168, Positive conditional cache size: 0, Positive unconditional cache size: 168, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 776]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: 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 9 procedures, 199 locations, 20 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: 21.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 5 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:47:31,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f218d348-8eec-4663-8b7d-c26f4b559f49/bin/uautomizer-verify-uCwYo4JHxu/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