./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl --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 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:09:08,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:09:08,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:09:08,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:09:08,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:09:08,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:09:08,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:09:08,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:09:08,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:09:08,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:09:08,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:09:08,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:09:08,990 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:09:08,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:09:08,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:09:08,996 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:09:08,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:09:08,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:09:08,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:09:08,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:09:08,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:09:09,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:09:09,004 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:09:09,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:09:09,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:09:09,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:09:09,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:09:09,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:09:09,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:09:09,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:09:09,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:09,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:09:09,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:09:09,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:09:09,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:09:09,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:09:09,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:09:09,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:09:09,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:09:09,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:09:09,012 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:09:09,012 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_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2023-11-12 02:09:09,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:09:09,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:09:09,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:09:09,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:09:09,346 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:09:09,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix008.opt.i [2023-11-12 02:09:12,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:12,720 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:12,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2023-11-12 02:09:12,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/data/f6275b2c5/07ee62dcc8ba4651802b135b4dd58118/FLAG9a9c09ba9 [2023-11-12 02:09:12,754 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/data/f6275b2c5/07ee62dcc8ba4651802b135b4dd58118 [2023-11-12 02:09:12,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:12,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:12,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:12,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:12,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:12,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:12" (1/1) ... [2023-11-12 02:09:12,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba12ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:12, skipping insertion in model container [2023-11-12 02:09:12,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:12" (1/1) ... [2023-11-12 02:09:12,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:13,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:13,361 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:13,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:13,507 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:13,507 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:13,515 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:13,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13 WrapperNode [2023-11-12 02:09:13,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:13,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:13,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:13,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:13,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,621 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2023-11-12 02:09:13,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:13,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:13,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:13,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:13,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:13,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:13,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:13,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:13,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (1/1) ... [2023-11-12 02:09:13,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:13,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:13,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:13,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:09:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:09:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:09:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:09:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:09:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:09:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:09:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:09:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:09:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:09:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:13,796 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:13,977 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:13,979 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:14,477 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:14,717 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:14,718 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:09:14,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:14 BoogieIcfgContainer [2023-11-12 02:09:14,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:14,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:14,726 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:14,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:14,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:12" (1/3) ... [2023-11-12 02:09:14,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a5fe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:14, skipping insertion in model container [2023-11-12 02:09:14,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:13" (2/3) ... [2023-11-12 02:09:14,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a5fe91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:14, skipping insertion in model container [2023-11-12 02:09:14,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:14" (3/3) ... [2023-11-12 02:09:14,735 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2023-11-12 02:09:14,745 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:09:14,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:14,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 02:09:14,759 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:09:14,860 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:09:14,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 143 transitions, 302 flow [2023-11-12 02:09:15,023 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-12 02:09:15,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:15,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-12 02:09:15,032 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 143 transitions, 302 flow [2023-11-12 02:09:15,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 139 transitions, 290 flow [2023-11-12 02:09:15,046 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:09:15,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-12 02:09:15,065 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 139 transitions, 290 flow [2023-11-12 02:09:15,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 139 transitions, 290 flow [2023-11-12 02:09:15,120 INFO L124 PetriNetUnfolderBase]: 3/139 cut-off events. [2023-11-12 02:09:15,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:15,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 3/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-12 02:09:15,125 INFO L119 LiptonReduction]: Number of co-enabled transitions 4332 [2023-11-12 02:09:20,379 INFO L134 LiptonReduction]: Checked pairs total: 14652 [2023-11-12 02:09:20,379 INFO L136 LiptonReduction]: Total number of compositions: 118 [2023-11-12 02:09:20,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:20,407 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;@7a51bdc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:20,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-12 02:09:20,411 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:09:20,411 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:09:20,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:20,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:20,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:09:20,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:09:20,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash 610059315, now seen corresponding path program 1 times [2023-11-12 02:09:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:20,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903084332] [2023-11-12 02:09:20,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:20,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:20,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:20,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903084332] [2023-11-12 02:09:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903084332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:20,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:09:20,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11741685] [2023-11-12 02:09:20,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:20,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:20,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:20,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2023-11-12 02:09:20,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2023-11-12 02:09:20,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:20,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2023-11-12 02:09:20,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:22,906 INFO L124 PetriNetUnfolderBase]: 8376/11695 cut-off events. [2023-11-12 02:09:22,907 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2023-11-12 02:09:22,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23562 conditions, 11695 events. 8376/11695 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 67843 event pairs, 2316 based on Foata normal form. 0/8262 useless extension candidates. Maximal degree in co-relation 23550. Up to 10804 conditions per place. [2023-11-12 02:09:23,037 INFO L140 encePairwiseOnDemand]: 247/261 looper letters, 47 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-11-12 02:09:23,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 237 flow [2023-11-12 02:09:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:09:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-11-12 02:09:23,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274584929757343 [2023-11-12 02:09:23,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-11-12 02:09:23,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-11-12 02:09:23,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:23,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-11-12 02:09:23,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2023-11-12 02:09:23,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 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) [2023-11-12 02:09:23,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 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) [2023-11-12 02:09:23,082 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 413 transitions. [2023-11-12 02:09:23,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 237 flow [2023-11-12 02:09:23,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 230 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:09:23,156 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-11-12 02:09:23,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, 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=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-12 02:09:23,161 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-12 02:09:23,161 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-11-12 02:09:23,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 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) [2023-11-12 02:09:23,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:23,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:23,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:23,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:09:23,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:23,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1776258548, now seen corresponding path program 1 times [2023-11-12 02:09:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:23,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583043932] [2023-11-12 02:09:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:23,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:23,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583043932] [2023-11-12 02:09:23,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583043932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:23,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:23,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:23,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547386800] [2023-11-12 02:09:23,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:23,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:23,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:23,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:23,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:23,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2023-11-12 02:09:23,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-12 02:09:23,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:23,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2023-11-12 02:09:23,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:24,619 INFO L124 PetriNetUnfolderBase]: 4789/6702 cut-off events. [2023-11-12 02:09:24,620 INFO L125 PetriNetUnfolderBase]: For 394/394 co-relation queries the response was YES. [2023-11-12 02:09:24,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16613 conditions, 6702 events. 4789/6702 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 35045 event pairs, 1132 based on Foata normal form. 0/5558 useless extension candidates. Maximal degree in co-relation 16602. Up to 5810 conditions per place. [2023-11-12 02:09:24,702 INFO L140 encePairwiseOnDemand]: 252/261 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-11-12 02:09:24,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 245 flow [2023-11-12 02:09:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:24,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:09:24,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 520 transitions. [2023-11-12 02:09:24,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49808429118773945 [2023-11-12 02:09:24,707 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 520 transitions. [2023-11-12 02:09:24,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 520 transitions. [2023-11-12 02:09:24,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:24,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 520 transitions. [2023-11-12 02:09:24,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:24,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 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) [2023-11-12 02:09:24,715 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 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) [2023-11-12 02:09:24,715 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 520 transitions. [2023-11-12 02:09:24,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 245 flow [2023-11-12 02:09:24,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 52 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:09:24,719 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-11-12 02:09:24,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=104, 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=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-11-12 02:09:24,721 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-12 02:09:24,721 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-11-12 02:09:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-12 02:09:24,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:24,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:24,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:24,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:09:24,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1776398979, now seen corresponding path program 1 times [2023-11-12 02:09:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:24,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501410053] [2023-11-12 02:09:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:24,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:24,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:24,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501410053] [2023-11-12 02:09:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501410053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:24,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:24,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477169379] [2023-11-12 02:09:24,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:24,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:24,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:24,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:24,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2023-11-12 02:09:24,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-12 02:09:24,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:24,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2023-11-12 02:09:24,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:25,675 INFO L124 PetriNetUnfolderBase]: 2967/4217 cut-off events. [2023-11-12 02:09:25,675 INFO L125 PetriNetUnfolderBase]: For 1210/1210 co-relation queries the response was YES. [2023-11-12 02:09:25,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10330 conditions, 4217 events. 2967/4217 cut-off events. For 1210/1210 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 20489 event pairs, 638 based on Foata normal form. 0/3947 useless extension candidates. Maximal degree in co-relation 10318. Up to 1818 conditions per place. [2023-11-12 02:09:25,763 INFO L140 encePairwiseOnDemand]: 252/261 looper letters, 58 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2023-11-12 02:09:25,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 71 transitions, 338 flow [2023-11-12 02:09:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:09:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2023-11-12 02:09:25,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5162835249042146 [2023-11-12 02:09:25,767 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 539 transitions. [2023-11-12 02:09:25,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 539 transitions. [2023-11-12 02:09:25,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:25,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 539 transitions. [2023-11-12 02:09:25,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 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) [2023-11-12 02:09:25,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 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) [2023-11-12 02:09:25,774 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 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) [2023-11-12 02:09:25,775 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 539 transitions. [2023-11-12 02:09:25,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 71 transitions, 338 flow [2023-11-12 02:09:25,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 71 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:09:25,779 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-11-12 02:09:25,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=108, 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=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-12 02:09:25,780 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-12 02:09:25,780 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-11-12 02:09:25,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2023-11-12 02:09:25,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:25,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:25,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:09:25,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:09:25,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:25,783 INFO L85 PathProgramCache]: Analyzing trace with hash 168984199, now seen corresponding path program 1 times [2023-11-12 02:09:25,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:25,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449107520] [2023-11-12 02:09:25,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:25,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:25,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:25,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449107520] [2023-11-12 02:09:25,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449107520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:25,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:25,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:09:25,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627300738] [2023-11-12 02:09:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:25,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:09:25,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:09:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:25,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2023-11-12 02:09:25,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2023-11-12 02:09:25,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:25,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2023-11-12 02:09:25,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:26,658 INFO L124 PetriNetUnfolderBase]: 2610/3659 cut-off events. [2023-11-12 02:09:26,658 INFO L125 PetriNetUnfolderBase]: For 2448/2448 co-relation queries the response was YES. [2023-11-12 02:09:26,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10495 conditions, 3659 events. 2610/3659 cut-off events. For 2448/2448 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 17035 event pairs, 583 based on Foata normal form. 0/3620 useless extension candidates. Maximal degree in co-relation 10482. Up to 1508 conditions per place. [2023-11-12 02:09:26,690 INFO L140 encePairwiseOnDemand]: 252/261 looper letters, 67 selfloop transitions, 13 changer transitions 4/88 dead transitions. [2023-11-12 02:09:26,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 88 transitions, 460 flow [2023-11-12 02:09:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:09:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:09:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 673 transitions. [2023-11-12 02:09:26,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5157088122605364 [2023-11-12 02:09:26,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 673 transitions. [2023-11-12 02:09:26,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 673 transitions. [2023-11-12 02:09:26,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:26,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 673 transitions. [2023-11-12 02:09:26,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 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) [2023-11-12 02:09:26,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 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) [2023-11-12 02:09:26,702 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 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) [2023-11-12 02:09:26,702 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 673 transitions. [2023-11-12 02:09:26,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 88 transitions, 460 flow [2023-11-12 02:09:26,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 88 transitions, 442 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-12 02:09:26,712 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-11-12 02:09:26,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=148, 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=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-12 02:09:26,714 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-12 02:09:26,714 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-11-12 02:09:26,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2023-11-12 02:09:26,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:26,715 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] [2023-11-12 02:09:26,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:26,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-12 02:09:26,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 111109241, now seen corresponding path program 1 times [2023-11-12 02:09:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:26,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971506216] [2023-11-12 02:09:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:26,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971506216] [2023-11-12 02:09:26,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971506216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:26,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:26,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:09:26,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784251772] [2023-11-12 02:09:26,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:26,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:09:26,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:26,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:09:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:26,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2023-11-12 02:09:26,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 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) [2023-11-12 02:09:26,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:26,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2023-11-12 02:09:26,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:27,722 INFO L124 PetriNetUnfolderBase]: 2575/3599 cut-off events. [2023-11-12 02:09:27,722 INFO L125 PetriNetUnfolderBase]: For 3091/3091 co-relation queries the response was YES. [2023-11-12 02:09:27,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 3599 events. 2575/3599 cut-off events. For 3091/3091 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 16790 event pairs, 583 based on Foata normal form. 20/3600 useless extension candidates. Maximal degree in co-relation 10574. Up to 1508 conditions per place. [2023-11-12 02:09:27,741 INFO L140 encePairwiseOnDemand]: 252/261 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2023-11-12 02:09:27,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 412 flow [2023-11-12 02:09:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:27,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:09:27,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 782 transitions. [2023-11-12 02:09:27,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49936143039591313 [2023-11-12 02:09:27,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 782 transitions. [2023-11-12 02:09:27,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 782 transitions. [2023-11-12 02:09:27,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:27,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 782 transitions. [2023-11-12 02:09:27,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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) [2023-11-12 02:09:27,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 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) [2023-11-12 02:09:27,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 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) [2023-11-12 02:09:27,758 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 782 transitions. [2023-11-12 02:09:27,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 412 flow [2023-11-12 02:09:27,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 80 transitions, 357 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-12 02:09:27,884 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-12 02:09:27,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-12 02:09:27,887 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-12 02:09:27,888 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-12 02:09:27,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 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) [2023-11-12 02:09:27,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-12 02:09:27,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-12 02:09:27,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-12 02:09:27,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-12 02:09:27,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-12 02:09:27,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-12 02:09:27,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-12 02:09:27,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-12 02:09:27,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-12 02:09:27,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-12 02:09:27,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-12 02:09:27,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-12 02:09:27,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-12 02:09:27,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-12 02:09:27,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-12 02:09:27,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-12 02:09:27,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-12 02:09:27,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-12 02:09:27,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-12 02:09:27,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-12 02:09:27,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:09:27,902 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:09:27,910 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:09:27,910 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:09:27,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:09:27 BasicIcfg [2023-11-12 02:09:27,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:09:27,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:09:27,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:09:27,916 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:09:27,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:14" (3/4) ... [2023-11-12 02:09:27,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:09:27,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:09:27,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:09:27,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 02:09:27,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 02:09:27,929 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:09:27,929 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:09:27,930 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:09:27,930 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:28,037 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:09:28,038 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:09:28,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:09:28,039 INFO L158 Benchmark]: Toolchain (without parser) took 15280.22ms. Allocated memory was 123.7MB in the beginning and 885.0MB in the end (delta: 761.3MB). Free memory was 84.9MB in the beginning and 575.4MB in the end (delta: -490.5MB). Peak memory consumption was 273.7MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,039 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:28,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.59ms. Allocated memory is still 123.7MB. Free memory was 84.7MB in the beginning and 60.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.77ms. Allocated memory is still 123.7MB. Free memory was 60.1MB in the beginning and 57.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,040 INFO L158 Benchmark]: Boogie Preprocessor took 60.12ms. Allocated memory is still 123.7MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,041 INFO L158 Benchmark]: RCFGBuilder took 1033.55ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 55.3MB in the beginning and 121.3MB in the end (delta: -65.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,041 INFO L158 Benchmark]: TraceAbstraction took 13189.53ms. Allocated memory was 182.5MB in the beginning and 885.0MB in the end (delta: 702.5MB). Free memory was 120.2MB in the beginning and 580.6MB in the end (delta: -460.4MB). Peak memory consumption was 288.3MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,042 INFO L158 Benchmark]: Witness Printer took 122.25ms. Allocated memory is still 885.0MB. Free memory was 580.6MB in the beginning and 575.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:09:28,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.59ms. Allocated memory is still 123.7MB. Free memory was 84.7MB in the beginning and 60.1MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.77ms. Allocated memory is still 123.7MB. Free memory was 60.1MB in the beginning and 57.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.12ms. Allocated memory is still 123.7MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1033.55ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 55.3MB in the beginning and 121.3MB in the end (delta: -65.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13189.53ms. Allocated memory was 182.5MB in the beginning and 885.0MB in the end (delta: 702.5MB). Free memory was 120.2MB in the beginning and 580.6MB in the end (delta: -460.4MB). Peak memory consumption was 288.3MB. Max. memory is 16.1GB. * Witness Printer took 122.25ms. Allocated memory is still 885.0MB. Free memory was 580.6MB in the beginning and 575.4MB in the end (delta: 5.3MB). 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: 5.3s, 149 PlacesBefore, 48 PlacesAfterwards, 139 TransitionsBefore, 36 TransitionsAfterwards, 4332 CoEnabledTransitionPairs, 7 FixpointIterations, 42 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 118 TotalNumberOfCompositions, 14652 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5195, independent: 4859, independent conditional: 0, independent unconditional: 4859, dependent: 336, dependent conditional: 0, dependent unconditional: 336, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2378, independent: 2319, independent conditional: 0, independent unconditional: 2319, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5195, independent: 2540, independent conditional: 0, independent unconditional: 2540, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 2378, unknown conditional: 0, unknown unconditional: 2378] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 176, Positive conditional cache size: 0, Positive unconditional cache size: 176, 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 852]: 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, 184 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: 13.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 226 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 435 IncrementalHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 12 mSDtfsCounter, 435 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=190occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 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! [2023-11-12 02:09:28,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a90a7e3d-56af-49e8-9ffb-90df70259d1d/bin/uautomizer-verify-uTZkv6EMXl/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