./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/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_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/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_21cecd43-37ee-4378-9e4d-fa1a3058be0c/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 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:40,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:40,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:46:40,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:40,942 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:40,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:40,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:40,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:40,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:40,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:40,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:40,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:40,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:40,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:40,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:40,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:40,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:40,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:40,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:40,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:40,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:40,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:40,975 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:40,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:40,975 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:40,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:40,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:40,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:40,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:40,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:40,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:40,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:40,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:40,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:40,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:40,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:40,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:40,980 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:40,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:40,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:40,980 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:40,981 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_21cecd43-37ee-4378-9e4d-fa1a3058be0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 [2023-11-19 07:46:41,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:41,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:41,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:41,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:41,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:41,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2023-11-19 07:46:44,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:45,004 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:45,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2023-11-19 07:46:45,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/data/b25e27805/a81bece0bb0246a088758b5f3e2d6d43/FLAGb03abf5e1 [2023-11-19 07:46:45,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/data/b25e27805/a81bece0bb0246a088758b5f3e2d6d43 [2023-11-19 07:46:45,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:45,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:45,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:45,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:45,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:45,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9fcd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45, skipping insertion in model container [2023-11-19 07:46:45,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:45,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:45,612 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:45,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:45,748 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:45,749 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:45,757 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:45,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45 WrapperNode [2023-11-19 07:46:45,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:45,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:45,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:45,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:45,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,839 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2023-11-19 07:46:45,839 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:45,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:45,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:45,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:45,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:45,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:45,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:45,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:45,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (1/1) ... [2023-11-19 07:46:45,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:45,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:46,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:46:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:46:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:46:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:46:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:46:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:46,053 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 07:46:46,205 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:46,208 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:46,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:46,852 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:46,853 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:46:46,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:46 BoogieIcfgContainer [2023-11-19 07:46:46,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:46,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:46,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:46,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:46,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:45" (1/3) ... [2023-11-19 07:46:46,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219ca6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:46, skipping insertion in model container [2023-11-19 07:46:46,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:45" (2/3) ... [2023-11-19 07:46:46,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219ca6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:46, skipping insertion in model container [2023-11-19 07:46:46,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:46" (3/3) ... [2023-11-19 07:46:46,868 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.oepc.i [2023-11-19 07:46:46,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:46:46,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:46,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:46:46,890 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:46:46,984 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:46:47,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 147 transitions, 310 flow [2023-11-19 07:46:47,169 INFO L124 PetriNetUnfolderBase]: 3/143 cut-off events. [2023-11-19 07:46:47,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:47,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 3/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-19 07:46:47,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 147 transitions, 310 flow [2023-11-19 07:46:47,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 143 transitions, 298 flow [2023-11-19 07:46:47,197 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:46:47,216 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 143 transitions, 298 flow [2023-11-19 07:46:47,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 143 transitions, 298 flow [2023-11-19 07:46:47,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 298 flow [2023-11-19 07:46:47,306 INFO L124 PetriNetUnfolderBase]: 3/143 cut-off events. [2023-11-19 07:46:47,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:47,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 143 events. 3/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 111 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2023-11-19 07:46:47,319 INFO L119 LiptonReduction]: Number of co-enabled transitions 4800 [2023-11-19 07:46:53,164 INFO L134 LiptonReduction]: Checked pairs total: 16381 [2023-11-19 07:46:53,164 INFO L136 LiptonReduction]: Total number of compositions: 116 [2023-11-19 07:46:53,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:53,193 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;@49c7060e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:53,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:46:53,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:46:53,200 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:46:53,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:46:53,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:53,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:46:53,202 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 07:46:53,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:53,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2141637996, now seen corresponding path program 1 times [2023-11-19 07:46:53,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:53,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918850394] [2023-11-19 07:46:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:53,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:53,709 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 07:46:53,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:53,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918850394] [2023-11-19 07:46:53,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918850394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:53,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:53,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:46:53,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814355023] [2023-11-19 07:46:53,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:53,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:53,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:53,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 263 [2023-11-19 07:46:53,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 07:46:53,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:53,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 263 [2023-11-19 07:46:53,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:46:57,138 INFO L124 PetriNetUnfolderBase]: 12225/16900 cut-off events. [2023-11-19 07:46:57,139 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2023-11-19 07:46:57,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34052 conditions, 16900 events. 12225/16900 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 95364 event pairs, 3437 based on Foata normal form. 0/12741 useless extension candidates. Maximal degree in co-relation 34040. Up to 14728 conditions per place. [2023-11-19 07:46:57,345 INFO L140 encePairwiseOnDemand]: 249/263 looper letters, 51 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-11-19 07:46:57,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 253 flow [2023-11-19 07:46:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:46:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:46:57,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2023-11-19 07:46:57,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5361216730038023 [2023-11-19 07:46:57,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2023-11-19 07:46:57,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2023-11-19 07:46:57,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:46:57,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2023-11-19 07:46:57,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 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 07:46:57,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 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 07:46:57,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 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 07:46:57,404 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 3 states and 423 transitions. [2023-11-19 07:46:57,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 253 flow [2023-11-19 07:46:57,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:46:57,418 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 129 flow [2023-11-19 07:46:57,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-11-19 07:46:57,428 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-11-19 07:46:57,428 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 129 flow [2023-11-19 07:46:57,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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 07:46:57,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:46:57,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:57,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:57,430 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 07:46:57,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:57,445 INFO L85 PathProgramCache]: Analyzing trace with hash 18179197, now seen corresponding path program 1 times [2023-11-19 07:46:57,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:57,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045883970] [2023-11-19 07:46:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:57,680 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 07:46:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:57,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045883970] [2023-11-19 07:46:57,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045883970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:57,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:57,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:57,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734814532] [2023-11-19 07:46:57,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:57,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 263 [2023-11-19 07:46:57,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 07:46:57,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:46:57,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 263 [2023-11-19 07:46:57,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:00,029 INFO L124 PetriNetUnfolderBase]: 7784/10735 cut-off events. [2023-11-19 07:47:00,029 INFO L125 PetriNetUnfolderBase]: For 622/622 co-relation queries the response was YES. [2023-11-19 07:47:00,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25969 conditions, 10735 events. 7784/10735 cut-off events. For 622/622 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 57460 event pairs, 2133 based on Foata normal form. 0/9273 useless extension candidates. Maximal degree in co-relation 25958. Up to 8562 conditions per place. [2023-11-19 07:47:00,126 INFO L140 encePairwiseOnDemand]: 254/263 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-19 07:47:00,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 261 flow [2023-11-19 07:47:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:47:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 532 transitions. [2023-11-19 07:47:00,131 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057034220532319 [2023-11-19 07:47:00,132 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 532 transitions. [2023-11-19 07:47:00,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 532 transitions. [2023-11-19 07:47:00,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:00,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 532 transitions. [2023-11-19 07:47:00,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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 07:47:00,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 263.0) internal successors, (1315), 5 states have internal predecessors, (1315), 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 07:47:00,145 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 263.0) internal successors, (1315), 5 states have internal predecessors, (1315), 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 07:47:00,145 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 129 flow. Second operand 4 states and 532 transitions. [2023-11-19 07:47:00,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 261 flow [2023-11-19 07:47:00,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:00,151 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 118 flow [2023-11-19 07:47:00,157 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2023-11-19 07:47:00,158 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-11-19 07:47:00,158 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 118 flow [2023-11-19 07:47:00,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 07:47:00,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:00,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:00,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:00,160 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 07:47:00,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:00,163 INFO L85 PathProgramCache]: Analyzing trace with hash 18179198, now seen corresponding path program 1 times [2023-11-19 07:47:00,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:00,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398640545] [2023-11-19 07:47:00,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:00,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:00,359 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 07:47:00,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398640545] [2023-11-19 07:47:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398640545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:00,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:00,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:00,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669353214] [2023-11-19 07:47:00,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:00,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:00,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 263 [2023-11-19 07:47:00,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 07:47:00,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:00,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 263 [2023-11-19 07:47:00,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:01,779 INFO L124 PetriNetUnfolderBase]: 5330/7390 cut-off events. [2023-11-19 07:47:01,779 INFO L125 PetriNetUnfolderBase]: For 1987/1987 co-relation queries the response was YES. [2023-11-19 07:47:01,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17640 conditions, 7390 events. 5330/7390 cut-off events. For 1987/1987 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 38214 event pairs, 1569 based on Foata normal form. 0/7060 useless extension candidates. Maximal degree in co-relation 17628. Up to 2826 conditions per place. [2023-11-19 07:47:01,847 INFO L140 encePairwiseOnDemand]: 254/263 looper letters, 64 selfloop transitions, 9 changer transitions 0/77 dead transitions. [2023-11-19 07:47:01,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 77 transitions, 362 flow [2023-11-19 07:47:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:01,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:47:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 553 transitions. [2023-11-19 07:47:01,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5256653992395437 [2023-11-19 07:47:01,853 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 553 transitions. [2023-11-19 07:47:01,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 553 transitions. [2023-11-19 07:47:01,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:01,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 553 transitions. [2023-11-19 07:47:01,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 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 07:47:01,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 263.0) internal successors, (1315), 5 states have internal predecessors, (1315), 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 07:47:01,862 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 263.0) internal successors, (1315), 5 states have internal predecessors, (1315), 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 07:47:01,863 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 118 flow. Second operand 4 states and 553 transitions. [2023-11-19 07:47:01,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 77 transitions, 362 flow [2023-11-19 07:47:01,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:01,868 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 170 flow [2023-11-19 07:47:01,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2023-11-19 07:47:01,870 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2023-11-19 07:47:01,871 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 170 flow [2023-11-19 07:47:01,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 07:47:01,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:01,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:01,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:01,879 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 07:47:01,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:01,880 INFO L85 PathProgramCache]: Analyzing trace with hash -413267897, now seen corresponding path program 1 times [2023-11-19 07:47:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258070900] [2023-11-19 07:47:01,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:01,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:02,120 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 07:47:02,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258070900] [2023-11-19 07:47:02,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258070900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:02,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:02,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:02,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353789455] [2023-11-19 07:47:02,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:02,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:02,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:02,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 263 [2023-11-19 07:47:02,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 07:47:02,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:02,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 263 [2023-11-19 07:47:02,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:03,878 INFO L124 PetriNetUnfolderBase]: 4919/6748 cut-off events. [2023-11-19 07:47:03,878 INFO L125 PetriNetUnfolderBase]: For 4095/4095 co-relation queries the response was YES. [2023-11-19 07:47:03,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18354 conditions, 6748 events. 4919/6748 cut-off events. For 4095/4095 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 34313 event pairs, 1514 based on Foata normal form. 0/6679 useless extension candidates. Maximal degree in co-relation 18341. Up to 2826 conditions per place. [2023-11-19 07:47:03,942 INFO L140 encePairwiseOnDemand]: 254/263 looper letters, 75 selfloop transitions, 13 changer transitions 4/96 dead transitions. [2023-11-19 07:47:03,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 96 transitions, 492 flow [2023-11-19 07:47:03,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:47:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:47:03,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 691 transitions. [2023-11-19 07:47:03,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254752851711026 [2023-11-19 07:47:03,947 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 691 transitions. [2023-11-19 07:47:03,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 691 transitions. [2023-11-19 07:47:03,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:03,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 691 transitions. [2023-11-19 07:47:03,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 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 07:47:03,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 07:47:03,959 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 07:47:03,959 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 170 flow. Second operand 5 states and 691 transitions. [2023-11-19 07:47:03,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 96 transitions, 492 flow [2023-11-19 07:47:03,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 474 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-19 07:47:03,972 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 194 flow [2023-11-19 07:47:03,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2023-11-19 07:47:03,974 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2023-11-19 07:47:03,974 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 194 flow [2023-11-19 07:47:03,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 07:47:03,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:03,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:03,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:03,976 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 07:47:03,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1237846993, now seen corresponding path program 1 times [2023-11-19 07:47:03,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:03,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199759708] [2023-11-19 07:47:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:04,230 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 07:47:04,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:04,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199759708] [2023-11-19 07:47:04,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199759708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:04,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:04,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:04,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361016804] [2023-11-19 07:47:04,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:04,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:04,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 263 [2023-11-19 07:47:04,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 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 07:47:04,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:04,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 263 [2023-11-19 07:47:04,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:05,691 INFO L124 PetriNetUnfolderBase]: 4884/6688 cut-off events. [2023-11-19 07:47:05,692 INFO L125 PetriNetUnfolderBase]: For 4966/4966 co-relation queries the response was YES. [2023-11-19 07:47:05,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18630 conditions, 6688 events. 4884/6688 cut-off events. For 4966/4966 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 34149 event pairs, 1514 based on Foata normal form. 20/6659 useless extension candidates. Maximal degree in co-relation 18616. Up to 2826 conditions per place. [2023-11-19 07:47:05,733 INFO L140 encePairwiseOnDemand]: 254/263 looper letters, 0 selfloop transitions, 0 changer transitions 88/88 dead transitions. [2023-11-19 07:47:05,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 88 transitions, 444 flow [2023-11-19 07:47:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 802 transitions. [2023-11-19 07:47:05,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082382762991128 [2023-11-19 07:47:05,742 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 802 transitions. [2023-11-19 07:47:05,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 802 transitions. [2023-11-19 07:47:05,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:05,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 802 transitions. [2023-11-19 07:47:05,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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 07:47:05,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 07:47:05,755 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 07:47:05,755 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 194 flow. Second operand 6 states and 802 transitions. [2023-11-19 07:47:05,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 88 transitions, 444 flow [2023-11-19 07:47:06,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 88 transitions, 389 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:47:06,079 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-19 07:47:06,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-19 07:47:06,081 INFO L281 CegarLoopForPetriNet]: 50 programPoint places, -3 predicate places. [2023-11-19 07:47:06,081 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-19 07:47:06,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 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 07:47:06,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:47:06,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:47:06,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:47:06,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:47:06,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:47:06,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:47:06,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:47:06,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:47:06,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:47:06,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:47:06,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:47:06,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:47:06,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:47:06,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:47:06,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:47:06,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:47:06,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:47:06,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:47:06,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:47:06,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:47:06,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:06,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:47:06,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:47:06,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:47:06,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:47:06 BasicIcfg [2023-11-19 07:47:06,105 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:47:06,105 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:47:06,106 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:47:06,106 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:47:06,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:46" (3/4) ... [2023-11-19 07:47:06,109 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:47:06,112 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:47:06,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:47:06,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:47:06,113 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:47:06,120 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 07:47:06,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:47:06,121 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:47:06,122 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:47:06,245 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:47:06,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:47:06,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:47:06,247 INFO L158 Benchmark]: Toolchain (without parser) took 21181.11ms. Allocated memory was 155.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 110.7MB in the beginning and 663.3MB in the end (delta: -552.5MB). Peak memory consumption was 562.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,248 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:47:06,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.73ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 86.5MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.86ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 83.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,250 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,250 INFO L158 Benchmark]: RCFGBuilder took 972.83ms. Allocated memory is still 155.2MB. Free memory was 81.6MB in the beginning and 85.7MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,251 INFO L158 Benchmark]: TraceAbstraction took 19244.37ms. Allocated memory was 155.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 84.5MB in the beginning and 668.5MB in the end (delta: -584.1MB). Peak memory consumption was 537.7MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,251 INFO L158 Benchmark]: Witness Printer took 141.17ms. Allocated memory is still 1.3GB. Free memory was 668.5MB in the beginning and 663.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:47:06,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.73ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 86.5MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.86ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 83.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 81.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 972.83ms. Allocated memory is still 155.2MB. Free memory was 81.6MB in the beginning and 85.7MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19244.37ms. Allocated memory was 155.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 84.5MB in the beginning and 668.5MB in the end (delta: -584.1MB). Peak memory consumption was 537.7MB. Max. memory is 16.1GB. * Witness Printer took 141.17ms. Allocated memory is still 1.3GB. Free memory was 668.5MB in the beginning and 663.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 153 PlacesBefore, 50 PlacesAfterwards, 143 TransitionsBefore, 38 TransitionsAfterwards, 4800 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 116 TotalNumberOfCompositions, 16381 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5590, independent: 5221, independent conditional: 0, independent unconditional: 5221, dependent: 369, dependent conditional: 0, dependent unconditional: 369, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2516, independent: 2447, independent conditional: 0, independent unconditional: 2447, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5590, independent: 2774, independent conditional: 0, independent unconditional: 2774, dependent: 300, dependent conditional: 0, dependent unconditional: 300, unknown: 2516, unknown conditional: 0, unknown unconditional: 2516] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: 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, 191 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: 19.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 206 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 4 mSDtfsCounter, 462 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=194occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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 07:47:06,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21cecd43-37ee-4378-9e4d-fa1a3058be0c/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