./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/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_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/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_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/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 e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:34:47,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:34:47,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:34:47,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:34:47,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:34:48,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:34:48,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:34:48,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:34:48,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:34:48,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:34:48,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:34:48,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:34:48,015 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:34:48,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:34:48,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:34:48,018 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:34:48,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:34:48,019 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:34:48,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:34:48,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:34:48,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:34:48,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:34:48,021 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:34:48,022 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:34:48,022 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:34:48,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:34:48,023 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:34:48,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:34:48,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:34:48,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:34:48,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:48,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:34:48,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:34:48,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:34:48,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:34:48,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:34:48,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:34:48,028 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:34:48,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:34:48,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:34:48,029 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:34:48,030 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_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1655ef15816414a510c3a8c6c5388872fb389e863c7015deef825935bc10ec6 [2023-11-19 07:34:48,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:34:48,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:34:48,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:34:48,402 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:34:48,403 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:34:48,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-19 07:34:51,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:34:51,705 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:34:51,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/sv-benchmarks/c/pthread-wmm/thin002_power.opt.i [2023-11-19 07:34:51,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/data/2e05dbdde/ac6ab74593e94ca9b66f1e5c8ff997d6/FLAG1bc3273cb [2023-11-19 07:34:51,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/data/2e05dbdde/ac6ab74593e94ca9b66f1e5c8ff997d6 [2023-11-19 07:34:51,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:34:51,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:34:51,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:51,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:34:51,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:34:51,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:51" (1/1) ... [2023-11-19 07:34:51,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564ec32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:51, skipping insertion in model container [2023-11-19 07:34:51,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:34:51" (1/1) ... [2023-11-19 07:34:51,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:34:52,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:52,400 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:34:52,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:34:52,594 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:34:52,594 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:34:52,603 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:34:52,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52 WrapperNode [2023-11-19 07:34:52,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:34:52,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:52,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:34:52,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:34:52,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,683 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 207 [2023-11-19 07:34:52,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:34:52,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:34:52,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:34:52,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:34:52,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:34:52,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:34:52,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:34:52,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:34:52,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (1/1) ... [2023-11-19 07:34:52,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:34:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:34:52,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:34:52,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:34:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:34:52,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:34:52,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:34:52,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:34:52,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:34:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:34:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:34:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:34:52,840 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:34:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:34:52,841 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:34:52,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:34:52,843 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 07:34:52,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 07:34:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:34:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:34:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:34:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:34:52,846 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 07:34:53,088 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:34:53,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:34:53,672 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:34:54,099 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:34:54,099 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:34:54,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:54 BoogieIcfgContainer [2023-11-19 07:34:54,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:34:54,109 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:34:54,109 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:34:54,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:34:54,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:34:51" (1/3) ... [2023-11-19 07:34:54,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675e3155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:54, skipping insertion in model container [2023-11-19 07:34:54,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:34:52" (2/3) ... [2023-11-19 07:34:54,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675e3155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:34:54, skipping insertion in model container [2023-11-19 07:34:54,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:54" (3/3) ... [2023-11-19 07:34:54,115 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_power.opt.i [2023-11-19 07:34:54,125 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:34:54,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:34:54,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:34:54,136 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:34:54,228 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:34:54,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 165 transitions, 346 flow [2023-11-19 07:34:54,369 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2023-11-19 07:34:54,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:54,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 161 events. 3/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-19 07:34:54,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 165 transitions, 346 flow [2023-11-19 07:34:54,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 161 transitions, 334 flow [2023-11-19 07:34:54,386 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:34:54,396 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 161 transitions, 334 flow [2023-11-19 07:34:54,399 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 161 transitions, 334 flow [2023-11-19 07:34:54,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 161 transitions, 334 flow [2023-11-19 07:34:54,441 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2023-11-19 07:34:54,441 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:34:54,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 161 events. 3/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-19 07:34:54,447 INFO L119 LiptonReduction]: Number of co-enabled transitions 4536 [2023-11-19 07:35:04,455 INFO L134 LiptonReduction]: Checked pairs total: 13886 [2023-11-19 07:35:04,456 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-11-19 07:35:04,495 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:04,502 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;@2dd3c0b3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:04,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-19 07:35:04,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:35:04,511 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 07:35:04,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:04,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:04,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:35:04,517 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 07:35:04,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:04,522 INFO L85 PathProgramCache]: Analyzing trace with hash 923203176, now seen corresponding path program 1 times [2023-11-19 07:35:04,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:04,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993098931] [2023-11-19 07:35:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:04,953 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 07:35:04,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:04,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993098931] [2023-11-19 07:35:04,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993098931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:04,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:04,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:35:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412953781] [2023-11-19 07:35:04,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:04,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:05,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2023-11-19 07:35:05,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 07:35:05,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:05,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2023-11-19 07:35:05,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:08,156 INFO L124 PetriNetUnfolderBase]: 11091/15488 cut-off events. [2023-11-19 07:35:08,157 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2023-11-19 07:35:08,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31228 conditions, 15488 events. 11091/15488 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 924. Compared 90679 event pairs, 4829 based on Foata normal form. 732/11049 useless extension candidates. Maximal degree in co-relation 31216. Up to 14843 conditions per place. [2023-11-19 07:35:08,320 INFO L140 encePairwiseOnDemand]: 290/305 looper letters, 47 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-11-19 07:35:08,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 233 flow [2023-11-19 07:35:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:35:08,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:35:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2023-11-19 07:35:08,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.521311475409836 [2023-11-19 07:35:08,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2023-11-19 07:35:08,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2023-11-19 07:35:08,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:08,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2023-11-19 07:35:08,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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 07:35:08,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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 07:35:08,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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 07:35:08,360 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 84 flow. Second operand 3 states and 477 transitions. [2023-11-19 07:35:08,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 233 flow [2023-11-19 07:35:08,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:35:08,370 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 127 flow [2023-11-19 07:35:08,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:35:08,376 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:35:08,377 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 127 flow [2023-11-19 07:35:08,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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 07:35:08,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:08,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:08,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:35:08,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:35:08,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 580933335, now seen corresponding path program 1 times [2023-11-19 07:35:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:08,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525134965] [2023-11-19 07:35:08,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,509 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 07:35:08,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:08,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525134965] [2023-11-19 07:35:08,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525134965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:08,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:08,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:08,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928801376] [2023-11-19 07:35:08,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:08,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:08,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:08,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:08,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:08,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2023-11-19 07:35:08,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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 07:35:08,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:08,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2023-11-19 07:35:08,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:09,935 INFO L124 PetriNetUnfolderBase]: 4061/6310 cut-off events. [2023-11-19 07:35:09,935 INFO L125 PetriNetUnfolderBase]: For 374/379 co-relation queries the response was YES. [2023-11-19 07:35:09,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15703 conditions, 6310 events. 4061/6310 cut-off events. For 374/379 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 37384 event pairs, 913 based on Foata normal form. 310/5309 useless extension candidates. Maximal degree in co-relation 15692. Up to 2937 conditions per place. [2023-11-19 07:35:09,984 INFO L140 encePairwiseOnDemand]: 291/305 looper letters, 63 selfloop transitions, 13 changer transitions 0/78 dead transitions. [2023-11-19 07:35:09,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 78 transitions, 383 flow [2023-11-19 07:35:09,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:09,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:35:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 633 transitions. [2023-11-19 07:35:09,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5188524590163934 [2023-11-19 07:35:09,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 633 transitions. [2023-11-19 07:35:09,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 633 transitions. [2023-11-19 07:35:09,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:09,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 633 transitions. [2023-11-19 07:35:09,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 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 07:35:10,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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 07:35:10,007 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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 07:35:10,008 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 127 flow. Second operand 4 states and 633 transitions. [2023-11-19 07:35:10,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 78 transitions, 383 flow [2023-11-19 07:35:10,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 78 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:35:10,013 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 227 flow [2023-11-19 07:35:10,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-11-19 07:35:10,014 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 3 predicate places. [2023-11-19 07:35:10,014 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 227 flow [2023-11-19 07:35:10,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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 07:35:10,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:10,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:10,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:10,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-11-19 07:35:10,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 581044004, now seen corresponding path program 1 times [2023-11-19 07:35:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:10,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810032753] [2023-11-19 07:35:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:10,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:10,156 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 07:35:10,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810032753] [2023-11-19 07:35:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810032753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:10,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:10,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:10,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821239776] [2023-11-19 07:35:10,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:10,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:35:10,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:10,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:35:10,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:35:10,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2023-11-19 07:35:10,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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 07:35:10,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:10,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2023-11-19 07:35:10,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:10,978 INFO L124 PetriNetUnfolderBase]: 2451/3654 cut-off events. [2023-11-19 07:35:10,978 INFO L125 PetriNetUnfolderBase]: For 3264/3277 co-relation queries the response was YES. [2023-11-19 07:35:10,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10240 conditions, 3654 events. 2451/3654 cut-off events. For 3264/3277 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 17912 event pairs, 713 based on Foata normal form. 580/3889 useless extension candidates. Maximal degree in co-relation 10226. Up to 3008 conditions per place. [2023-11-19 07:35:11,004 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 47 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-11-19 07:35:11,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 311 flow [2023-11-19 07:35:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:35:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:35:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 604 transitions. [2023-11-19 07:35:11,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49508196721311476 [2023-11-19 07:35:11,009 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 604 transitions. [2023-11-19 07:35:11,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 604 transitions. [2023-11-19 07:35:11,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:11,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 604 transitions. [2023-11-19 07:35:11,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 07:35:11,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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 07:35:11,017 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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 07:35:11,018 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 227 flow. Second operand 4 states and 604 transitions. [2023-11-19 07:35:11,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 311 flow [2023-11-19 07:35:11,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 288 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-19 07:35:11,065 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 158 flow [2023-11-19 07:35:11,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-11-19 07:35:11,067 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-11-19 07:35:11,067 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 158 flow [2023-11-19 07:35:11,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 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 07:35:11,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:11,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:11,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:35:11,073 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 07:35:11,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:11,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1383652369, now seen corresponding path program 1 times [2023-11-19 07:35:11,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:11,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903350061] [2023-11-19 07:35:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:11,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:11,226 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 07:35:11,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:11,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903350061] [2023-11-19 07:35:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903350061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:11,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:11,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:35:11,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418913635] [2023-11-19 07:35:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:11,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:35:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:11,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:35:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:11,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2023-11-19 07:35:11,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 158 flow. Second operand has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 07:35:11,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:11,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2023-11-19 07:35:11,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:11,965 INFO L124 PetriNetUnfolderBase]: 1559/2292 cut-off events. [2023-11-19 07:35:11,966 INFO L125 PetriNetUnfolderBase]: For 1573/1583 co-relation queries the response was YES. [2023-11-19 07:35:11,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6063 conditions, 2292 events. 1559/2292 cut-off events. For 1573/1583 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10036 event pairs, 431 based on Foata normal form. 61/2302 useless extension candidates. Maximal degree in co-relation 6050. Up to 908 conditions per place. [2023-11-19 07:35:11,985 INFO L140 encePairwiseOnDemand]: 295/305 looper letters, 63 selfloop transitions, 13 changer transitions 4/82 dead transitions. [2023-11-19 07:35:11,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 432 flow [2023-11-19 07:35:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:35:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:35:11,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 775 transitions. [2023-11-19 07:35:11,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081967213114754 [2023-11-19 07:35:11,990 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 775 transitions. [2023-11-19 07:35:11,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 775 transitions. [2023-11-19 07:35:11,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:11,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 775 transitions. [2023-11-19 07:35:11,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 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 07:35:12,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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 07:35:12,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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 07:35:12,003 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 158 flow. Second operand 5 states and 775 transitions. [2023-11-19 07:35:12,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 432 flow [2023-11-19 07:35:12,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:35:12,009 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 196 flow [2023-11-19 07:35:12,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-11-19 07:35:12,010 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-19 07:35:12,010 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 196 flow [2023-11-19 07:35:12,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 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 07:35:12,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:12,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:12,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:35:12,013 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 07:35:12,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:12,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1964886354, now seen corresponding path program 1 times [2023-11-19 07:35:12,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:12,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318029436] [2023-11-19 07:35:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:12,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:12,236 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 07:35:12,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:12,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318029436] [2023-11-19 07:35:12,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318029436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:12,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:12,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:35:12,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228237729] [2023-11-19 07:35:12,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:12,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:35:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:12,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:35:12,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:35:12,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2023-11-19 07:35:12,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 07:35:12,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:12,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2023-11-19 07:35:12,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:35:12,871 INFO L124 PetriNetUnfolderBase]: 1484/2139 cut-off events. [2023-11-19 07:35:12,872 INFO L125 PetriNetUnfolderBase]: For 1750/1760 co-relation queries the response was YES. [2023-11-19 07:35:12,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6304 conditions, 2139 events. 1484/2139 cut-off events. For 1750/1760 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9322 event pairs, 411 based on Foata normal form. 28/2140 useless extension candidates. Maximal degree in co-relation 6290. Up to 908 conditions per place. [2023-11-19 07:35:12,882 INFO L140 encePairwiseOnDemand]: 295/305 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2023-11-19 07:35:12,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 376 flow [2023-11-19 07:35:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:35:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 901 transitions. [2023-11-19 07:35:12,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4923497267759563 [2023-11-19 07:35:12,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 901 transitions. [2023-11-19 07:35:12,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 901 transitions. [2023-11-19 07:35:12,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:35:12,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 901 transitions. [2023-11-19 07:35:12,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 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 07:35:12,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 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 07:35:12,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 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 07:35:12,900 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 196 flow. Second operand 6 states and 901 transitions. [2023-11-19 07:35:12,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 376 flow [2023-11-19 07:35:12,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 70 transitions, 321 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-11-19 07:35:12,925 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-11-19 07:35:12,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-11-19 07:35:12,926 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -7 predicate places. [2023-11-19 07:35:12,926 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-11-19 07:35:12,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 07:35:12,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-19 07:35:12,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-19 07:35:12,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-19 07:35:12,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-19 07:35:12,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-11-19 07:35:12,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-11-19 07:35:12,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-19 07:35:12,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-19 07:35:12,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-19 07:35:12,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-19 07:35:12,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-19 07:35:12,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-19 07:35:12,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-19 07:35:12,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-19 07:35:12,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-19 07:35:12,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:35:12,934 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 07:35:12,939 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:35:12,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:35:12,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:12 BasicIcfg [2023-11-19 07:35:12,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:35:12,944 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:12,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:12,944 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:12,945 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:34:54" (3/4) ... [2023-11-19 07:35:12,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:35:12,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:35:12,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:35:12,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:35:12,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-19 07:35:12,955 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:35:12,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:35:12,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:35:12,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:35:13,044 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:35:13,044 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:35:13,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:13,045 INFO L158 Benchmark]: Toolchain (without parser) took 21295.00ms. Allocated memory was 130.0MB in the beginning and 1.0GB in the end (delta: 895.5MB). Free memory was 66.5MB in the beginning and 387.5MB in the end (delta: -321.1MB). Peak memory consumption was 574.6MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,045 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:13,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 852.24ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 66.2MB in the beginning and 123.6MB in the end (delta: -57.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.98ms. Allocated memory is still 174.1MB. Free memory was 123.6MB in the beginning and 120.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,046 INFO L158 Benchmark]: Boogie Preprocessor took 51.92ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 117.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,047 INFO L158 Benchmark]: RCFGBuilder took 1369.30ms. Allocated memory is still 174.1MB. Free memory was 117.9MB in the beginning and 94.4MB in the end (delta: 23.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,047 INFO L158 Benchmark]: TraceAbstraction took 18834.83ms. Allocated memory was 174.1MB in the beginning and 1.0GB in the end (delta: 851.4MB). Free memory was 93.4MB in the beginning and 392.8MB in the end (delta: -299.4MB). Peak memory consumption was 552.0MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,048 INFO L158 Benchmark]: Witness Printer took 100.44ms. Allocated memory is still 1.0GB. Free memory was 392.8MB in the beginning and 387.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:35:13,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 852.24ms. Allocated memory was 130.0MB in the beginning and 174.1MB in the end (delta: 44.0MB). Free memory was 66.2MB in the beginning and 123.6MB in the end (delta: -57.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.98ms. Allocated memory is still 174.1MB. Free memory was 123.6MB in the beginning and 120.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.92ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 117.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1369.30ms. Allocated memory is still 174.1MB. Free memory was 117.9MB in the beginning and 94.4MB in the end (delta: 23.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 18834.83ms. Allocated memory was 174.1MB in the beginning and 1.0GB in the end (delta: 851.4MB). Free memory was 93.4MB in the beginning and 392.8MB in the end (delta: -299.4MB). Peak memory consumption was 552.0MB. Max. memory is 16.1GB. * Witness Printer took 100.44ms. Allocated memory is still 1.0GB. Free memory was 392.8MB in the beginning and 387.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 171 PlacesBefore, 48 PlacesAfterwards, 161 TransitionsBefore, 36 TransitionsAfterwards, 4536 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 140 TotalNumberOfCompositions, 13886 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5827, independent: 5498, independent conditional: 0, independent unconditional: 5498, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2428, independent: 2365, independent conditional: 0, independent unconditional: 2365, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5827, independent: 3133, independent conditional: 0, independent unconditional: 3133, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 2428, unknown conditional: 0, unknown unconditional: 2428] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 223, Positive conditional cache size: 0, Positive unconditional cache size: 223, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 824]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 860]: 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, 207 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: 18.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 435 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 1 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=227occurred in iteration=2, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 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 07:35:13,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bf4d661-e7a0-4609-a5ff-99844e4a28b8/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