./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje --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 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:15:45,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:15:45,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:15:45,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:15:45,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:15:45,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:15:45,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:15:45,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:15:45,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:15:45,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:15:45,797 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:15:45,797 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:15:45,797 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:15:45,798 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:15:45,798 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:15:45,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:15:45,803 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:15:45,803 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:15:45,803 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:15:45,803 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:15:45,804 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:15:45,804 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:15:45,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:15:45,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:15:45,807 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:15:45,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:15:45,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:15:45,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:15:45,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:15:45,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:15:45,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:15:45,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:15:45,809 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:15:45,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:15:45,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:15:45,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:15:45,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:15:45,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:15:45,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:15:45,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:15:45,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:45,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:15:45,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:15:45,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:15:45,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:15:45,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:15:45,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:15:45,814 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:15:45,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:15:45,815 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_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2024-11-09 05:15:46,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:15:46,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:15:46,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:15:46,194 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:15:46,195 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:15:46,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c Unable to find full path for "g++" [2024-11-09 05:15:48,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:15:48,519 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:15:48,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-11-09 05:15:48,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/data/4bae22aa3/d8afd69a5f664c7a816f98ad91673b2d/FLAG1a6a56873 [2024-11-09 05:15:48,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/data/4bae22aa3/d8afd69a5f664c7a816f98ad91673b2d [2024-11-09 05:15:48,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:15:48,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:15:48,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:48,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:15:48,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:15:48,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:48" (1/1) ... [2024-11-09 05:15:48,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b956b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:48, skipping insertion in model container [2024-11-09 05:15:48,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:15:48" (1/1) ... [2024-11-09 05:15:48,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:15:48,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:48,964 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:15:49,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:15:49,092 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:15:49,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49 WrapperNode [2024-11-09 05:15:49,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:15:49,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:49,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:15:49,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:15:49,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,196 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 517 [2024-11-09 05:15:49,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:15:49,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:15:49,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:15:49,197 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:15:49,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:15:49,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:15:49,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:15:49,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:15:49,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (1/1) ... [2024-11-09 05:15:49,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:15:49,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:49,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:15:49,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:15:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-11-09 05:15:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-11-09 05:15:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:15:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-11-09 05:15:49,350 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-11-09 05:15:49,350 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-09 05:15:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-09 05:15:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-11-09 05:15:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-11-09 05:15:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:15:49,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:15:49,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:15:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-11-09 05:15:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-11-09 05:15:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:15:49,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:15:49,355 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-11-09 05:15:49,356 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-11-09 05:15:49,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:15:49,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:15:50,365 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-09 05:15:50,366 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:15:50,623 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:15:50,623 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:15:50,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:50 BoogieIcfgContainer [2024-11-09 05:15:50,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:15:50,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:15:50,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:15:50,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:15:50,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:15:48" (1/3) ... [2024-11-09 05:15:50,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aa262e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:50, skipping insertion in model container [2024-11-09 05:15:50,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:15:49" (2/3) ... [2024-11-09 05:15:50,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aa262e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:50, skipping insertion in model container [2024-11-09 05:15:50,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:50" (3/3) ... [2024-11-09 05:15:50,635 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-11-09 05:15:50,655 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:15:50,655 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:15:50,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:15:50,779 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;@7e5693f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:15:50,780 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:15:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 152 states, 111 states have (on average 1.5405405405405406) internal successors, (171), 113 states have internal predecessors, (171), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-09 05:15:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:15:50,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:50,803 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, 1] [2024-11-09 05:15:50,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:15:50,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1411859014, now seen corresponding path program 1 times [2024-11-09 05:15:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760183952] [2024-11-09 05:15:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:15:51,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:51,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760183952] [2024-11-09 05:15:51,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760183952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:51,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:51,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:15:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571664379] [2024-11-09 05:15:51,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:51,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:15:51,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:51,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:15:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:15:51,746 INFO L87 Difference]: Start difference. First operand has 152 states, 111 states have (on average 1.5405405405405406) internal successors, (171), 113 states have internal predecessors, (171), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-09 05:15:51,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:51,947 INFO L93 Difference]: Finished difference Result 263 states and 415 transitions. [2024-11-09 05:15:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:15:51,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 56 [2024-11-09 05:15:51,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:51,970 INFO L225 Difference]: With dead ends: 263 [2024-11-09 05:15:51,970 INFO L226 Difference]: Without dead ends: 257 [2024-11-09 05:15:51,974 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 [2024-11-09 05:15:51,978 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 105 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:51,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 655 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:15:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-09 05:15:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-11-09 05:15:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 191 states have (on average 1.5340314136125655) internal successors, (293), 192 states have internal predecessors, (293), 57 states have call successors, (57), 7 states have call predecessors, (57), 7 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-09 05:15:52,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 407 transitions. [2024-11-09 05:15:52,090 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 407 transitions. Word has length 56 [2024-11-09 05:15:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:52,092 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 407 transitions. [2024-11-09 05:15:52,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-09 05:15:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 407 transitions. [2024-11-09 05:15:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 05:15:52,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:52,102 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, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:52,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:15:52,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:15:52,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 603393881, now seen corresponding path program 1 times [2024-11-09 05:15:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211574098] [2024-11-09 05:15:52,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 05:15:52,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:52,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211574098] [2024-11-09 05:15:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211574098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:15:52,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071483369] [2024-11-09 05:15:52,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:52,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:15:52,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:15:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:53,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:15:53,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 05:15:53,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:53,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071483369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:53,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:15:53,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-09 05:15:53,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099105465] [2024-11-09 05:15:53,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:53,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:15:53,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:53,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:15:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:15:53,421 INFO L87 Difference]: Start difference. First operand 257 states and 407 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 05:15:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:53,748 INFO L93 Difference]: Finished difference Result 494 states and 773 transitions. [2024-11-09 05:15:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:15:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 108 [2024-11-09 05:15:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:53,752 INFO L225 Difference]: With dead ends: 494 [2024-11-09 05:15:53,752 INFO L226 Difference]: Without dead ends: 269 [2024-11-09 05:15:53,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:15:53,761 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 336 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:53,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 575 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:15:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-09 05:15:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 268. [2024-11-09 05:15:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 198 states have (on average 1.5151515151515151) internal successors, (300), 199 states have internal predecessors, (300), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 05:15:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 416 transitions. [2024-11-09 05:15:53,816 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 416 transitions. Word has length 108 [2024-11-09 05:15:53,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:53,817 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 416 transitions. [2024-11-09 05:15:53,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-09 05:15:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 416 transitions. [2024-11-09 05:15:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 05:15:53,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:53,827 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] [2024-11-09 05:15:53,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:15:54,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:54,028 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:15:54,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 521877081, now seen corresponding path program 1 times [2024-11-09 05:15:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:54,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457162078] [2024-11-09 05:15:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:54,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 05:15:54,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:54,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457162078] [2024-11-09 05:15:54,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457162078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:15:54,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335826310] [2024-11-09 05:15:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:54,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:54,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:54,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:15:54,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:15:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:54,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:15:54,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 05:15:54,771 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:54,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335826310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:54,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:15:54,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-09 05:15:54,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596037760] [2024-11-09 05:15:54,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:54,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:15:54,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:54,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:15:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:15:54,775 INFO L87 Difference]: Start difference. First operand 268 states and 416 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-11-09 05:15:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:55,058 INFO L93 Difference]: Finished difference Result 491 states and 767 transitions. [2024-11-09 05:15:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:15:55,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 109 [2024-11-09 05:15:55,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:55,061 INFO L225 Difference]: With dead ends: 491 [2024-11-09 05:15:55,061 INFO L226 Difference]: Without dead ends: 268 [2024-11-09 05:15:55,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:15:55,064 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 331 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:55,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 578 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:15:55,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-09 05:15:55,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-09 05:15:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 198 states have (on average 1.5101010101010102) internal successors, (299), 199 states have internal predecessors, (299), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 05:15:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 415 transitions. [2024-11-09 05:15:55,092 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 415 transitions. Word has length 109 [2024-11-09 05:15:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:55,092 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 415 transitions. [2024-11-09 05:15:55,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-11-09 05:15:55,093 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 415 transitions. [2024-11-09 05:15:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 05:15:55,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:55,096 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, 1] [2024-11-09 05:15:55,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:15:55,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:55,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:15:55,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash -307573034, now seen corresponding path program 1 times [2024-11-09 05:15:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:55,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552365745] [2024-11-09 05:15:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 05:15:55,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:55,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552365745] [2024-11-09 05:15:55,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552365745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:15:55,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169282270] [2024-11-09 05:15:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:55,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:55,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:55,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:15:55,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:15:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:56,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:15:56,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 05:15:56,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:56,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169282270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:56,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:15:56,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 05:15:56,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310320965] [2024-11-09 05:15:56,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:56,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:15:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:15:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:15:56,200 INFO L87 Difference]: Start difference. First operand 268 states and 415 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-11-09 05:15:56,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:56,441 INFO L93 Difference]: Finished difference Result 268 states and 415 transitions. [2024-11-09 05:15:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:15:56,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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 111 [2024-11-09 05:15:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:56,446 INFO L225 Difference]: With dead ends: 268 [2024-11-09 05:15:56,446 INFO L226 Difference]: Without dead ends: 267 [2024-11-09 05:15:56,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:15:56,448 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 201 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 1446 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 [2024-11-09 05:15:56,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 1446 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:15:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-09 05:15:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2024-11-09 05:15:56,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 198 states have (on average 1.505050505050505) internal successors, (298), 198 states have internal predecessors, (298), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 05:15:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 414 transitions. [2024-11-09 05:15:56,477 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 414 transitions. Word has length 111 [2024-11-09 05:15:56,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:56,478 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 414 transitions. [2024-11-09 05:15:56,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-11-09 05:15:56,478 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 414 transitions. [2024-11-09 05:15:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 05:15:56,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:56,481 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:56,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:56,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:56,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 05:15:56,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:56,687 INFO L85 PathProgramCache]: Analyzing trace with hash -944828938, now seen corresponding path program 1 times [2024-11-09 05:15:56,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:15:56,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371409991] [2024-11-09 05:15:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:56,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:15:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 05:15:56,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:56,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371409991] [2024-11-09 05:15:56,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371409991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:56,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:56,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:15:56,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171153808] [2024-11-09 05:15:56,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:56,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:15:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:15:56,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:15:56,878 INFO L87 Difference]: Start difference. First operand 267 states and 414 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-09 05:15:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:56,949 INFO L93 Difference]: Finished difference Result 267 states and 414 transitions. [2024-11-09 05:15:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:15:56,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 112 [2024-11-09 05:15:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:56,951 INFO L225 Difference]: With dead ends: 267 [2024-11-09 05:15:56,951 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:15:56,952 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 [2024-11-09 05:15:56,953 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 104 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:56,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 503 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:15:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:15:56,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:15:56,955 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) [2024-11-09 05:15:56,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:15:56,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-11-09 05:15:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:56,956 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:15:56,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-09 05:15:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:15:56,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:15:56,959 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 05:15:56,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 05:15:56,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:15:56,964 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 05:15:56,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:15:57,619 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:15:57,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:15:57 BoogieIcfgContainer [2024-11-09 05:15:57,656 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:15:57,656 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:15:57,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:15:57,657 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:15:57,657 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:50" (3/4) ... [2024-11-09 05:15:57,660 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:15:57,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-11-09 05:15:57,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-11-09 05:15:57,664 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-11-09 05:15:57,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-11-09 05:15:57,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-11-09 05:15:57,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 05:15:57,665 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-11-09 05:15:57,681 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 56 nodes and edges [2024-11-09 05:15:57,682 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 05:15:57,686 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:15:57,687 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:15:57,836 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:15:57,837 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:15:57,837 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:15:57,838 INFO L158 Benchmark]: Toolchain (without parser) took 9276.20ms. Allocated memory was 153.1MB in the beginning and 245.4MB in the end (delta: 92.3MB). Free memory was 110.0MB in the beginning and 185.8MB in the end (delta: -75.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,838 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 153.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:15:57,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.14ms. Allocated memory is still 153.1MB. Free memory was 109.4MB in the beginning and 89.7MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.32ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 85.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,839 INFO L158 Benchmark]: Boogie Preprocessor took 59.99ms. Allocated memory is still 153.1MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,840 INFO L158 Benchmark]: RCFGBuilder took 1366.50ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 82.7MB in the beginning and 127.3MB in the end (delta: -44.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,840 INFO L158 Benchmark]: TraceAbstraction took 7028.42ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 126.3MB in the beginning and 199.5MB in the end (delta: -73.2MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,840 INFO L158 Benchmark]: Witness Printer took 180.89ms. Allocated memory is still 245.4MB. Free memory was 199.5MB in the beginning and 185.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:15:57,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 153.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.14ms. Allocated memory is still 153.1MB. Free memory was 109.4MB in the beginning and 89.7MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.32ms. Allocated memory is still 153.1MB. Free memory was 89.7MB in the beginning and 85.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.99ms. Allocated memory is still 153.1MB. Free memory was 85.5MB in the beginning and 82.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1366.50ms. Allocated memory was 153.1MB in the beginning and 203.4MB in the end (delta: 50.3MB). Free memory was 82.7MB in the beginning and 127.3MB in the end (delta: -44.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7028.42ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 126.3MB in the beginning and 199.5MB in the end (delta: -73.2MB). Peak memory consumption was 100.9MB. Max. memory is 16.1GB. * Witness Printer took 180.89ms. Allocated memory is still 245.4MB. Free memory was 199.5MB in the beginning and 185.8MB 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: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: 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 8 procedures, 152 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1155 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1077 mSDsluCounter, 3757 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2552 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 1205 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred 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, 824 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 1462 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1726 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 446/504 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: 582]: 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: 236]: Procedure Contract for flip_the_side Derived contract for procedure flip_the_side. 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: 612]: 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! [2024-11-09 05:15:57,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba392695-2953-4cc4-9541-daf4b6b95c69/bin/utaipan-verify-YMUCfTKeje/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