./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1fa78b32466948213cdbfc05d3adcde2ac2fc14323ec3ac2f4b441976452676 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:29:35,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:29:35,850 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:29:35,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:29:35,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:29:35,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:29:35,877 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:29:35,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:29:35,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:29:35,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:29:35,879 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:29:35,879 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:29:35,880 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:29:35,880 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:29:35,881 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:29:35,881 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:29:35,881 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:29:35,882 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:29:35,882 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:29:35,883 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:29:35,883 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:29:35,884 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:29:35,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:29:35,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:29:35,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:29:35,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:29:35,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:29:35,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:29:35,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:29:35,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:29:35,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:29:35,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:29:35,889 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:29:35,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:29:35,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:29:35,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:29:35,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:29:35,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:29:35,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:29:35,892 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:29:35,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:29:35,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:29:35,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:29:35,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:29:35,894 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:29:35,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:29:35,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:29:35,895 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:29:35,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:29:35,895 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1fa78b32466948213cdbfc05d3adcde2ac2fc14323ec3ac2f4b441976452676 [2024-11-02 12:29:36,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:29:36,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:29:36,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:29:36,190 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:29:36,192 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:29:36,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c Unable to find full path for "g++" [2024-11-02 12:29:38,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:29:38,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:29:38,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2024-11-02 12:29:38,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/data/af5d6e6d3/e569d97810da41e493f9f8508dab38fa/FLAG7da6df4b0 [2024-11-02 12:29:38,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/data/af5d6e6d3/e569d97810da41e493f9f8508dab38fa [2024-11-02 12:29:38,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:29:38,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:29:38,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:29:38,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:29:38,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:29:38,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:29:38" (1/1) ... [2024-11-02 12:29:38,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca2cc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:38, skipping insertion in model container [2024-11-02 12:29:38,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:29:38" (1/1) ... [2024-11-02 12:29:38,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:29:39,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:29:39,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:29:39,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:29:39,311 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:29:39,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39 WrapperNode [2024-11-02 12:29:39,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:29:39,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:29:39,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:29:39,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:29:39,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,457 INFO L138 Inliner]: procedures = 32, calls = 48, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 519 [2024-11-02 12:29:39,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:29:39,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:29:39,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:29:39,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:29:39,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:29:39,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:29:39,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:29:39,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:29:39,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (1/1) ... [2024-11-02 12:29:39,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:29:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:39,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:29:39,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:29:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-02 12:29:39,597 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-02 12:29:39,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:29:39,598 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-02 12:29:39,598 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-02 12:29:39,600 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-02 12:29:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-02 12:29:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:29:39,601 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:29:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:29:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-02 12:29:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-02 12:29:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:29:39,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:29:39,603 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-02 12:29:39,604 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-02 12:29:39,769 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:29:39,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:29:40,826 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-02 12:29:40,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:29:41,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:29:41,067 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:29:41,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:29:41 BoogieIcfgContainer [2024-11-02 12:29:41,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:29:41,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:29:41,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:29:41,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:29:41,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:29:38" (1/3) ... [2024-11-02 12:29:41,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e8a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:29:41, skipping insertion in model container [2024-11-02 12:29:41,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:29:39" (2/3) ... [2024-11-02 12:29:41,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e8a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:29:41, skipping insertion in model container [2024-11-02 12:29:41,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:29:41" (3/3) ... [2024-11-02 12:29:41,081 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.5.ufo.BOUNDED-10.pals.c [2024-11-02 12:29:41,100 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:29:41,101 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-02 12:29:41,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:29:41,193 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@5c70b084, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:29:41,193 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-02 12:29:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 104 states have (on average 1.5288461538461537) internal successors, (159), 106 states have internal predecessors, (159), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-02 12:29:41,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-02 12:29:41,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:41,216 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:41,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:29:41,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:41,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2100069478, now seen corresponding path program 1 times [2024-11-02 12:29:41,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608686412] [2024-11-02 12:29:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:41,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-02 12:29:42,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:42,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608686412] [2024-11-02 12:29:42,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608686412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:42,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:42,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:42,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153008940] [2024-11-02 12:29:42,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:42,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:29:42,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:42,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:29:42,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:42,159 INFO L87 Difference]: Start difference. First operand has 142 states, 104 states have (on average 1.5288461538461537) internal successors, (159), 106 states have internal predecessors, (159), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:29:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:42,389 INFO L93 Difference]: Finished difference Result 245 states and 384 transitions. [2024-11-02 12:29:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:29:42,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-11-02 12:29:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:42,409 INFO L225 Difference]: With dead ends: 245 [2024-11-02 12:29:42,409 INFO L226 Difference]: Without dead ends: 241 [2024-11-02 12:29:42,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:42,418 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 97 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:42,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 609 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:29:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-02 12:29:42,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2024-11-02 12:29:42,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 180 states have (on average 1.5222222222222221) internal successors, (274), 181 states have internal predecessors, (274), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-02 12:29:42,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 380 transitions. [2024-11-02 12:29:42,504 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 380 transitions. Word has length 55 [2024-11-02 12:29:42,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:42,506 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 380 transitions. [2024-11-02 12:29:42,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:29:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 380 transitions. [2024-11-02 12:29:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-02 12:29:42,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:42,515 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:42,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:29:42,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:29:42,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:42,516 INFO L85 PathProgramCache]: Analyzing trace with hash 788352440, now seen corresponding path program 1 times [2024-11-02 12:29:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:42,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334723749] [2024-11-02 12:29:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:42,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:29:43,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334723749] [2024-11-02 12:29:43,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334723749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:43,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990278568] [2024-11-02 12:29:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:43,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:43,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:43,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:43,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:29:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:43,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:29:43,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-02 12:29:43,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:29:43,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990278568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:43,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:29:43,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-02 12:29:43,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059696607] [2024-11-02 12:29:43,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:43,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:29:43,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:29:43,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-02 12:29:43,769 INFO L87 Difference]: Start difference. First operand 241 states and 380 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-02 12:29:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:44,011 INFO L93 Difference]: Finished difference Result 467 states and 731 transitions. [2024-11-02 12:29:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:29:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 106 [2024-11-02 12:29:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:44,015 INFO L225 Difference]: With dead ends: 467 [2024-11-02 12:29:44,015 INFO L226 Difference]: Without dead ends: 251 [2024-11-02 12:29:44,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-02 12:29:44,019 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 303 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:44,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 542 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:44,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-02 12:29:44,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 250. [2024-11-02 12:29:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.5053763440860215) internal successors, (280), 187 states have internal predecessors, (280), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 12:29:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 388 transitions. [2024-11-02 12:29:44,053 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 388 transitions. Word has length 106 [2024-11-02 12:29:44,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:44,054 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 388 transitions. [2024-11-02 12:29:44,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-02 12:29:44,054 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 388 transitions. [2024-11-02 12:29:44,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-02 12:29:44,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:44,060 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:44,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 12:29:44,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:44,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:29:44,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1375165218, now seen corresponding path program 1 times [2024-11-02 12:29:44,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:44,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741758892] [2024-11-02 12:29:44,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-02 12:29:44,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:44,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741758892] [2024-11-02 12:29:44,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741758892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:44,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583429716] [2024-11-02 12:29:44,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:44,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:44,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:44,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:44,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:29:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:44,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:29:44,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-02 12:29:44,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:29:44,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583429716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:44,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:29:44,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-02 12:29:44,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684720215] [2024-11-02 12:29:44,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:45,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:29:45,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:29:45,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-02 12:29:45,001 INFO L87 Difference]: Start difference. First operand 250 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-02 12:29:45,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:45,214 INFO L93 Difference]: Finished difference Result 464 states and 725 transitions. [2024-11-02 12:29:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:29:45,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 107 [2024-11-02 12:29:45,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:45,217 INFO L225 Difference]: With dead ends: 464 [2024-11-02 12:29:45,217 INFO L226 Difference]: Without dead ends: 250 [2024-11-02 12:29:45,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-02 12:29:45,220 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 298 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:45,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 545 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:45,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-02 12:29:45,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-02 12:29:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.5) internal successors, (279), 187 states have internal predecessors, (279), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 12:29:45,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 387 transitions. [2024-11-02 12:29:45,274 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 387 transitions. Word has length 107 [2024-11-02 12:29:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:45,275 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 387 transitions. [2024-11-02 12:29:45,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-02 12:29:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 387 transitions. [2024-11-02 12:29:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-02 12:29:45,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:45,284 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:45,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:29:45,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:45,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:29:45,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1197431357, now seen corresponding path program 1 times [2024-11-02 12:29:45,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:45,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713000921] [2024-11-02 12:29:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:45,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:29:45,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713000921] [2024-11-02 12:29:45,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713000921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:29:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554701930] [2024-11-02 12:29:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:45,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:45,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:29:45,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:29:45,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:29:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:46,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-02 12:29:46,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:29:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-02 12:29:46,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:29:46,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554701930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:46,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:29:46,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-02 12:29:46,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74838952] [2024-11-02 12:29:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:46,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 12:29:46,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:46,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 12:29:46,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:29:46,272 INFO L87 Difference]: Start difference. First operand 250 states and 387 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-02 12:29:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:46,481 INFO L93 Difference]: Finished difference Result 250 states and 387 transitions. [2024-11-02 12:29:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:29:46,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 109 [2024-11-02 12:29:46,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:46,486 INFO L225 Difference]: With dead ends: 250 [2024-11-02 12:29:46,486 INFO L226 Difference]: Without dead ends: 249 [2024-11-02 12:29:46,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-02 12:29:46,490 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 185 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:46,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1344 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:29:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-02 12:29:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-02 12:29:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 186 states have (on average 1.4946236559139785) internal successors, (278), 186 states have internal predecessors, (278), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 12:29:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 386 transitions. [2024-11-02 12:29:46,522 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 386 transitions. Word has length 109 [2024-11-02 12:29:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:46,522 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 386 transitions. [2024-11-02 12:29:46,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-02 12:29:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 386 transitions. [2024-11-02 12:29:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-02 12:29:46,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:29:46,526 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:29:46,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 12:29:46,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:29:46,727 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-02 12:29:46,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:29:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1534334111, now seen corresponding path program 1 times [2024-11-02 12:29:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:29:46,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778437097] [2024-11-02 12:29:46,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:29:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:29:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:29:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-02 12:29:46,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:29:46,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778437097] [2024-11-02 12:29:46,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778437097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:29:46,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:29:46,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:29:46,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778732892] [2024-11-02 12:29:46,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:29:46,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:29:46,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:29:46,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:29:46,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:46,928 INFO L87 Difference]: Start difference. First operand 249 states and 386 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 12:29:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:29:47,002 INFO L93 Difference]: Finished difference Result 249 states and 386 transitions. [2024-11-02 12:29:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:29:47,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 110 [2024-11-02 12:29:47,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:29:47,004 INFO L225 Difference]: With dead ends: 249 [2024-11-02 12:29:47,005 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:29:47,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:29:47,006 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 96 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:29:47,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 473 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:29:47,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:29:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:29:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-02 12:29:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:29:47,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2024-11-02 12:29:47,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:29:47,036 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:29:47,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-02 12:29:47,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:29:47,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:29:47,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-02 12:29:47,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-02 12:29:47,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-02 12:29:47,045 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 12:29:47,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 12:29:47,680 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:29:47,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:29:47 BoogieIcfgContainer [2024-11-02 12:29:47,733 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:29:47,734 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:29:47,734 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:29:47,734 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:29:47,735 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:29:41" (3/4) ... [2024-11-02 12:29:47,738 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:29:47,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-11-02 12:29:47,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-11-02 12:29:47,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-11-02 12:29:47,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-11-02 12:29:47,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-02 12:29:47,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-11-02 12:29:47,761 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2024-11-02 12:29:47,762 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-02 12:29:47,764 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:29:47,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:29:47,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:29:47,940 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:29:47,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:29:47,941 INFO L158 Benchmark]: Toolchain (without parser) took 9207.38ms. Allocated memory was 161.5MB in the beginning and 249.6MB in the end (delta: 88.1MB). Free memory was 131.3MB in the beginning and 161.2MB in the end (delta: -29.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,941 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:29:47,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.36ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 111.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.86ms. Allocated memory is still 161.5MB. Free memory was 110.9MB in the beginning and 107.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,943 INFO L158 Benchmark]: Boogie Preprocessor took 50.27ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 104.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,946 INFO L158 Benchmark]: RCFGBuilder took 1560.06ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 87.5MB in the end (delta: 16.6MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,946 INFO L158 Benchmark]: TraceAbstraction took 6660.30ms. Allocated memory was 161.5MB in the beginning and 249.6MB in the end (delta: 88.1MB). Free memory was 86.2MB in the beginning and 174.8MB in the end (delta: -88.6MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,946 INFO L158 Benchmark]: Witness Printer took 206.58ms. Allocated memory is still 249.6MB. Free memory was 174.8MB in the beginning and 161.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:29:47,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.36ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 111.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 134.86ms. Allocated memory is still 161.5MB. Free memory was 110.9MB in the beginning and 107.2MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.27ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 104.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1560.06ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 87.5MB in the end (delta: 16.6MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6660.30ms. Allocated memory was 161.5MB in the beginning and 249.6MB in the end (delta: 88.1MB). Free memory was 86.2MB in the beginning and 174.8MB in the end (delta: -88.6MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 206.58ms. Allocated memory is still 249.6MB. Free memory was 174.8MB in the beginning and 161.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 142 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1049 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 979 mSDsluCounter, 3513 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2388 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1125 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 801 ConstructedInterpolants, 0 QuantifiedInterpolants, 1417 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1720 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 441/497 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 2 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: (((1 <= i2) && (((short) nomsg + 1) <= 0)) || ((((((short) s1p_old + 1) <= 0) && (i2 == 0)) && (((short) nomsg + 1) <= 0)) && (((short) s2p_old + 1) <= 0))) - ProcedureContractResult [Line: 173]: Procedure Contract for read_manual_selection_history Derived contract for procedure read_manual_selection_history. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) - ProcedureContractResult [Line: 113]: Procedure Contract for read_side2_failed_history Derived contract for procedure read_side2_failed_history. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) - ProcedureContractResult [Line: 608]: Procedure Contract for assert Derived contract for procedure assert. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) - ProcedureContractResult [Line: 83]: Procedure Contract for read_side1_failed_history Derived contract for procedure read_side1_failed_history. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) - ProcedureContractResult [Line: 57]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) - ProcedureContractResult [Line: 143]: Procedure Contract for read_active_side_history Derived contract for procedure read_active_side_history. Requires: (((short) nomsg + 1) <= 0) Ensures: ((((short) nomsg + 1) <= 0) && (((((((((((((((((((((((((((((((((((((((((nomsg == \old(nomsg)) && (cs1 == \old(cs1))) && (cs1_old == \old(cs1_old))) && (cs1_new == \old(cs1_new))) && (cs2 == \old(cs2))) && (cs2_old == \old(cs2_old))) && (cs2_new == \old(cs2_new))) && (s1s2 == \old(s1s2))) && (s1s2_old == \old(s1s2_old))) && (s1s2_new == \old(s1s2_new))) && (s1s1 == \old(s1s1))) && (s1s1_old == \old(s1s1_old))) && (s1s1_new == \old(s1s1_new))) && (s2s1 == \old(s2s1))) && (s2s1_old == \old(s2s1_old))) && (s2s1_new == \old(s2s1_new))) && (s2s2 == \old(s2s2))) && (s2s2_old == \old(s2s2_old))) && (s2s2_new == \old(s2s2_new))) && (s1p == \old(s1p))) && (s1p_old == \old(s1p_old))) && (s1p_new == \old(s1p_new))) && (s2p == \old(s2p))) && (s2p_old == \old(s2p_old))) && (s2p_new == \old(s2p_new))) && (side1Failed == \old(side1Failed))) && (side2Failed == \old(side2Failed))) && (side1_written == \old(side1_written))) && (side2_written == \old(side2_written))) && (side1Failed_History_0 == \old(side1Failed_History_0))) && (side1Failed_History_1 == \old(side1Failed_History_1))) && (side1Failed_History_2 == \old(side1Failed_History_2))) && (side2Failed_History_0 == \old(side2Failed_History_0))) && (side2Failed_History_1 == \old(side2Failed_History_1))) && (side2Failed_History_2 == \old(side2Failed_History_2))) && (active_side_History_0 == \old(active_side_History_0))) && (active_side_History_1 == \old(active_side_History_1))) && (active_side_History_2 == \old(active_side_History_2))) && (manual_selection_History_0 == \old(manual_selection_History_0))) && (manual_selection_History_1 == \old(manual_selection_History_1))) && (manual_selection_History_2 == \old(manual_selection_History_2)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 12:29:48,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abf5f9ad-2d88-4766-a8b1-378eaa7389eb/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE